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Analog Devices Solutions Bulletin
FREE OFFER!
Inside.
This Issue.
Page Optimum Low-Power, High-Speed Converters 10-Bit/12-Bit ADCs Enable Cable Reverse Path Application Breakthroughs Power/Performance Ultrasound
14-Bit/65 MSPS Converter Enables Software Radio Next-Generation Wireless Communications
Increase Measurement Rates Limit Power Consumption ADCs Next-Generation Medical Image Quality Overcome Demanding Applications with High-Precision MicroConverters®
wireless communications, there relentless march toward increasing data rates improving spectral efficiency. 900, IS-136/EDGE emerging standards that will enable high-speed data carried over networks line" access dawns personal communications. standards tough. they have radios that accommodate these multiple standards (plus legacy standards) will required achieve levels dynamic performance programmability. Software radio architectures "digital solution" that will carry wireless communications infrastructure into next generation. This architecture converts signal into digital domain radio signal processing accomplished DSP. data converter critical link software radio signal chain, achieving sufficient dynamic performance this function design challenge.
Smoother Integration High-Accuracy, Precision Selection Guide Latest Integrated Circuit Beating Energy Meter Design Challenges
AD6644, 14-bit, MSPS converter, "state-of-the-art" wideband technology world today perfect solution next-generation software radio designs. raises performance (100 twotone SFDR while sampling MSPS), specifically defined meet dynamic range requirements wireless base station application. element Analog Devices' SoftCellsoftware radio chipset solution, AD6644 designed meet emerging standards now, future. SoftCell chipset provides complete platform software radio design that will accommodate multiple standards provide easy means adding channels system features. ADC, DAC, (Receive Signal Processors), (Transmit Signal Processors), components that comprise SoftCell solution represent world's best technology respective software radio functions. AD6644 complements enhances Analog Devices' SoftCell family solutions consisting AD6624, AD6622, AD9754.
SOFTWARE RADIO
SOFTCELLWIDEBAND
Smart Positioning with Broadband Modem/Home Networking MxFE. Increase Input Flexibility with Precision Multichannel ADCs Hand-Held Functionality While Reducing Size Cost Design Faster Throughput Rates Increased Stability SOT-23 High Resolution Data Converter Applications
RECEIVE SIGNAL PROCESSOR
MCPA
WIDEBAND
TRANSMIT SIGNAL PROCESSOR
/softcell analog.com
formation more visit SoftCel
SOFTCELL APPLICATIONS
AD6644
multicarrier base station transceivers micro/picocell transceivers in-building wireless base station phased array antenna systems wireless local loop systems
Price $39.00
*USD 1,000s (unless otherwise noted), recommended resale, U.S.A.
Visit website free books, samples, data sheets, additional product information.
www.analog.com/bulletins/adc
Low-Power, High-Speed Converters
More more, imaging systems, test equipment, radio receiver systems applications going portable, making power consumption critical consideration when choosing optimum converter. also common portable battery-operated applications allow compromises sampling speed wideband dynamic performance from these lower-power ADCs.
latest 12-bit, from Analog Devices, AD9235, offers power cost savings over previously available analog-to-digital converters. AD9235 high-performance solution portable battery-operated systems that require superior dynamic performance. Three speed grades AD9235 available- MSPS, MSPS, MSPS. full speed MSPS), AD9235 dissipates only AD9235 also offers power-down mode, available small 28-lead TSSOP package.
AVDD DRWDD CLOCK VINA MDAC1 VINB 8-STAGE 1/2-BIT PIPELINE CLOCK DUTY CYCLE STABILIZER REFT REFB MODE SELECT MODE
differential single-ended input scale-able analog input range: clock duty cycle stabilizer with input SFDR with input with input
CORRECTION LOGIC VREF OUTPUT BUFFERS SENSE SELECT AVSS (MSB) (LSB) PDWN DRVSS
AD9235
APPLICATIONS
wireless communication receivers picocell receivers wireless local loop ultrasound medical imaging
AD9235 SPECTRAL PERFORMANCE, 65MSPS, 70MHZ
70MHz CLOCK 65MSPS 68.6dB SFDR 78.6dB 77.0dBc
PART NUMBER AD9280 AD9283 AD9200 AD9203 AD9214 AD9235 AD9281 AD9288
[Bits]
UPDATE RATE [MSPS] 50/80/100 65/80/105 20/40/65 40/80/100 65/80/105
POWER [mW] 80/90/90 190/250/285 90/166/302 156/171/180 350/495/530
BANDWIDTH [MHz]
PRICE [$US] 2.15 3.00 2.65 4.90 8.20 20.11 3.86 5.40 4.95 15.11
32.5
AD9201 AD9218
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www.analog.com/bulletins/adc
Direct Sampling Techniques Greatly Simplify High-Speed Receiver Design
Superheterodyne-based radio architectures have been workhorse radio design past years, emerging need multimode software configurability radio designs straining practical limits analog implementations based "superhet." Direct sampling techniques allow much radio architecture moved digital domain, which offers significant advantages terms cost savings, flexibility, performance. direct sampling, receive critical element, must have high enough input bandwidth, well excellent distortion noise performance, ensure that incoming signal accurately recovered. Direct sampling requires breed wideband, high-performance converters take radio into digital domain.
AD9244 newest 14-bit entry Analog Devices' growing line single supply ADCs specifically designed meet needs direct sampling receivers. AD9244 consumes only power, representing only fraction power presently available ADCs existing high-speed, monolithic solutions. AD9244, well Analog Devices' other ADCs designed sampling applications, provide unmatched performance industry, making them suitable wide range other applications. Available speed grades, MSPS MSPS, provide exact performance need. analog input bandwidth scale-able analog input range: input
AVDD
DRVDD
VINA VINB
DUTY CYCLE STABILIZER MDAC1 9-STAGE 1-1/2-BIT PIPELINE
CAPT CAPB VREF SENSE
CALIBRATION CORRECTION LOGIC SELECT REFCOM MODE SELECT MODE OUTPUT BUFFERS (MSB) (LSB)
AD9244
AVSS DRVSS
APPLICATIONS
wideband radio receiver pico-/microcell transceivers communications test equipment medical ultrasound equipment high-end imaging
PART NUMBER AD6600 AD9226 AD6640 AD9433 AD9430 AD9244
[BITS]
UPDATE RATE [MSPS] 105/125 170/210 40/65
POWER [mW] 1250/1350 1100/1300 400/650
BANDWIDTH [MHz]
PRICE [$US] 35.00 19.34 32.80 59.95 29.07
WORLD'S NUMBER BRAND HIGH-PERFORMANCE ANALOG ICs.
www.analog.com/bulletins/adc
10-/12-Bit ADCs Optimized Performance High Sampling Rates Enable Cable Reverse Path Application
demand higher-speed home Internet access cable network being driven networking, telephony, video-on-demand, home office, Internet appliance requirements. DOCSIS specifies return-path data rates MBPS currently most networks support least kBPS. Multi-cable system operators (MSOs) increasing speed capacity their existing plants moving "digital return" architecture backhaul. This digital return path accommodates higher order modulation schemes like 64-QAM OFDM higher data transfer rates. Digital return path requires high-speed data converters that achieve superior performance over band North America band Europe, very high sampling rates.
CABLE REVERSE PATH NETWORK
BIDIRECTIONAL AMPS
DIGITAL RETURN SYSTEM
FIBER OPTIC NODE INPUT
12-BIT
SERIALIZER
HEAD-END CABLE MODEM TERMINATION SYSTEM (CMTS)
RETURN LASER/NODE FIBER DIRECTIONAL COUPLER OUTPUT 5MHz 40MHz CMTS
DE-SERIALIZER OPTIONAL
12-BIT
Analog Devices 12-bit ADCs like AD9071, AD9214, AD9410, AD9430, AD9432, which optimized high-speed, high-SNR performance applications such digital return path. Complementing portfolio, Analog Devices also offers high-performance converters from TxDAC family, such AD9753 AD9751. with analog input MSPS (AD9432) with analog input MSPS (AD9410) analog input bandwidths
PART NUMBER AD9071 AD9214 AD9410 AD9432 AD9430
[BITS]
UPDATE RATE [MSPS] 80/105 170/210
POWER [mW] 2200 790/850 1100/1300
BANDWIDTH [MHz]
PRICE [$US] 45.08 8.20 53.10 35.79
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Ultrasound System Design Solutions Offer Breakthroughs Power/Performance
Most digital beam-forming ultrasound systems today have channels reflected signals from transducer main receiver, requiring each dissipate little power possible while still maintaining superior dynamic performance. latest products from Analog Devices offer most comprehensive solutions available market today include AD9203 (10-bit, MSPS), AD9214 (10-bit, MSPS), AD9235 (12-bit, 20/40/65 MSPS) with ENOB performances 9.55, 8.5, 11.3, respectively. Each these converters reduces system power consumption, allowing design more receive channels board reducing system size, simplifying upgrade paths future.
AD9203, AD9214, AD9235, coupled with Analog Devices' other product offerings medical imaging applications (e.g., time/gain amplifiers, power management, interface, DSP), provide uncompromisingly complete solutions improving system design cost, reliability, time market.
TxDAC® BEAMFORMER VIDEO AUDIO OUTPUT
power consumption ranging from exceptional ENOB performance: 11.3
DEMUX
AD9203 AD9214 AD9218 AD9226 AD9235 AD9244
Price 4.90 Price 8.20 Price $15.11 Price $19.34 Price $20.11 Price $33.00
High-Performance Analog with Programmable Signal Conditioning
AD7725 complete 16-bit, converter based 5thorder modulator programmable digital processor. Processing power equivalent million multiply-accumulate operations second, MACS. This processing used advanced signal conditioning before data leaves AD7725, thus freeing other precious resources. output modulator first traverses three cascaded finite impulse response (FIR) filters before entering programmable processor. Here user configure coefficients with multiply-accumulate operations. Among signal processing capabilities low-pass, high-pass, band-pass, stopband filters, linearization, configurable decimation ratios. 19.2 5th-order modulation, bandwidth programmable signal conditioning programmable decimation
AVDD AGND
AD7725
2.5V REFERENCE PROGRAMMABLE FILTER
REF2 REF1
VIN(+) VIN(-)
PRESET FILTER
DVDD DGND
HALF STBY SYNC RD/WR SOE/CS CFMT/RS /INT SDI/DB
XTAL CLOCK
XTAL_OFF XTAL CLKIN SMODE1/DB15 SMODE0/DB14 SCR/DB13 END/DB12 CHE/DB11 TSI/DB10 FSO/DB
CONTROL LOGIC
AD7725
ERR/DB1 CHI/DB2 CHO/DB3 DOE/DB4 SFMT /DB5 FSI/DB6 SCO/DB7 SDO/DB8
Price $23.00
WORLD'S NUMBER BRAND HIGH-PERFORMANCE ANALOG ICs.
www.analog.com/bulletins/adc
Increasing Measurement Rates While Keeping Power Consumption Down Poses Challenge
Smart transmitter designers challenged increase measurement rates prime variable secondary variables keep power consumption under control. modern smart transmitters field instruments there ever-present pressure increase measurement throughput rate prime variable. This increase throughput allows software algorithms like loops executed shorter time tighter system control. same time there also requirement measure other, secondary variables, inside smart transmitter. Secondary variables like temperature, voltage, excitation currents, etc., generally measured slower rates they still consume precious converter time. Analog Devices solved this dilemma introducing configured sample simultaneous inputs.
AD7719 contains modulators single piece silicon. main channel comprises 24-bit, no-missing-code converter, with input multiplexer. analog input channels programmed behave either differential channels, three pseudo-differential inputs with respect common pin. rail-to-rail high-impedance input buffer allows buffered operation either supply rail. secondary channel comprises 16-bit with input multiplexer choice single-ended inputs differential input. Both ADCs have separate reference inputs. main channel continuously convert prime variable while secondary channel simultaneously convert secondary variables. Thus, AD7719 solution ensures maximum throughput rate prime variable while easily accurately accommodating secondary variables. single 5.25 operation operates with reference voltages from matched switchable current sources offset gain drift calibration cycles required calibrate gain offset error power consumption less than master clock frequency 4-pin port 28-lead SOIC TSSOP packages
AVDD IOUT1
DVDD
REFIN1( REFIN1(
XTAL
XTAL
AD7719
IOUT2 AIN1 24-BIT AIN2 MUX1 AIN3 AIN4 MODULATOR PROGRAMMABLE DIGITAL FILTER
CLOCK GENERATION
DOUT SERIAL INTERFACE LOGIC CONTROL SCLK RESET 16-BIT PROGRAMMABLE DIGITAL FILTER
PORT CONTROLLER
AIN5 AIN6 TEMP SENSOR
MUX2
MODULATOR
AGND
DGND
REFIN2
SW1/P1 SW2/P2
APPLICATIONS
AD7719
smart transmitters field instruments battery-powered instrumentation loop-powered instrumentation low-power data acquisition
Price $10.30 (100s)
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Current Challenge Medical Imaging Find ADCs with Dynamic Range Linearity Needed NextGeneration Image Quality
medical imaging market demands accuracy. scanners, continually trying improve resolution speed acquisition, seek high dynamic range very high linearity order have accurate representation accommodate increasing number slices sensors demanded modern scanners. multiplexing accuracy requirement lead natural choice analog/digital converters. Current imaging applications both amplification stage well 16-bit correctly capture images into digital domain, where sophisticated image reconstruction algorithms executed, usually using chip. This 16-bit needs very linear, specifically because possible difference signal level from point next. This demands very good specifications. Currently, best choices these applications ASICs, channel (which makes manychannel solution very expensive large), AD677, Analog Devices 16-bit with guaranteed LSB. AD677 lowest-cost best solution market but, medical imaging application, Analog Devices often asked screen even tighter limits than specified. medical imaging market needs more.
AD7677, scheduled released August 2001, comes perfect answer problem. With differential inputs, all-CMOS part provides maximum LSB. This first 16-bit achieve such linearity easily most accurate part industry. Furthermore, speed kSPS (the AD677 kSPS), provides ample speed multiplexing many channels. AD7677 also power consumption less than typical maximum sampling rate also boasts LQFP package size. This device only solves problem making available 16-bit with multiple applications, also saves power, space, money customer. same family AD7676, released same time, which guarantees speed kSPS. AD7676 targeted imaging solutions that require speed extra accuracy that AD7677 provides.
AVDD AGND REFGND
DVDD
DGND OVDD
AD7677
SERIAL PORT SWITCHED
OGND
DATA[15.0] BUSY
PARALLEL INTERFACE CLOCK RESET CONTROL LOGIC CALIBRATION CIRCUITRY
SER/PAR OB/2C BYTESWAP
WARP
IMPULSE
CNVST
APPLICATIONS
AD7677 AD7676
scanners data acquisition test measurement instrumentation spectrum analysis medical portable equipment
Price $32.50 Price $20.00
WORLD'S NUMBER BRAND HIGH-PERFORMANCE ANALOG ICs.
www.analog.com/bulletins/adc High-Precision MicroConverters Your Demanding Applications
Analog Devices holds market leadership position data conversion kinds ADCs, DACs, high-speed precision-, MicroConverters. ADuC816 newest member MicroConverter family second flash programmable converter. offers unique conversion high-performance data conversion, program data flash memory, industry-standard 8-bit microcontroller. ADuC816 complete highaccuracy data acquisition system-in-a-chip your industrial, instrumentation, intelligent sensor interfacing applications.
ADuC816
ADC: 16-bit primary with (5.4 output word rate) 16-bit auxiliary DAC: 12-bit, voltage output, rail-to-rail, Flash/EEPROM: Kbytes flash, program memory, bytes flash/EE data memory MicroController: Industry-standard 8052, integrated low-power clock, MIPs, lines Other On-Chip Features: Temperature sensor, PWM, watchdog timer, flexible serial interface ports, precision voltage reference
.all chip.
Look next MicroConverter parts coming soon.
large memory version ADuC824 existing memory) low-cost ADuC812S
Reference Flash Memory Core Master Clock Package Price
ADuC812 8-Channel 12-bit 12-Bit On-Chip Bytes RAM/640 Bytes Data/ Program 8051/52 External Clock MQFP $8.00
ADuC816 Dual 16-Bit 12-Bit On-Chip Bytes RAM/640 Bytes Data/ Program 8051/52 On-Chip MQFP $10.00
ADuC824 Dual 16-/24-Bit 12-Bit On-Chip Bytes RAM/640 Bytes Data/ Program 8051/52 On-Chip MQFP $12.00
Visit www.analog.com/microconverter latest information
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Integration Breakthrough High-Accuracy, Precision Analog-to-Digital Converter
Seismic data acquisition instrumentation requires industry's highest dynamic range performance low-bandwidth converters. There also constant market pressure data acquisition instrumentation cost effective, consume less space, portable remote applications, battery operated. previous solution super-high-resolution data acquisition conversion seismic instrument discrete PGA, discrete anti-alias filter, high-resolution ADC. This presented expensive, hard-to-manufacture discrete signal chain solution that necessarily deliver dynamic performance necessary this demanding application.
AD1555/AD1556 chipset provides integrated solution applications that require utmost absolute resolution. AD1555 24-bit modulator that outputs one-density stream proportional analog input. AD1556 digital filter/decimator, which when combined with AD1555, forms industry's highest-performing bandwidths kHz. integrated makes anti-alias filter unnecessary integrated geophone test circuitry improved performance output word rate
REFIN
REFCAP2
REFCAP1
AGND3 CB0.CB4
PGA0.PGA4
ERROR
DIVIDER
MODE CONTROL LOGIC OVERVOLTAGE DETECTION
CONTROL
CONFIGURATION REGISTER STATUS REGISTER
INPUT SHIFT REGISTER
SCLK
MFLG CSEL
DATA OUTPUT DOUT DRDY
AGND1
LOOP FILTER
TDATA MDATA CLOCK GENERATION
INPUT
DIGITAL FILTER DATA REGISTER
AD1555
PGAOUT MODIN AGND2
MCLK
CLOCK DIVIDER
RSEL
AD1556
DGND
CLKIN SYNC
BW0.BW2 RESET PWRDN
APPLICATIONS
AD1555 AD1556
exploration industrial weigh scales chromatography calibration earthquake monitoring civil engineering
Price $73.73 Price $24.86
AMPLITUDE FREQUENCY 24.4Hz 116.7dB 120.6dB
WORLD'S NUMBER BRAND HIGH-PERFORMANCE ANALOG ICs.
GENERAL-PURPOSE HIGH-SPEED SELECTION GUIDE*
Generic Single Int, 4-Channel, 16-Bit, kSPS Serial Data Acquisition System Triple 16-Bit 100/570 kSPS Single 16-Bit, 100/500 kSPS, Serial/Parallel Triple 480/630 16-Bit Parallel/16-Bit Serial, kSPS Sampling
Resolution Bits
Throughput Rate Analog kSPS Inputs
Power Supply Voltage VNOM
Power Diss
Reference Description
16-Bit Sampling ADCs
AD676/677
100/100
AD7660/7664
100/500
AD7676/7677
100/570
AD974
12-Bit 14-Bit, Single Single Multichannel ADCs
Single Int, Single (2.7 5.25) Single (2.35 5.25) Single (2.7 5.25) Single (2.7 5.25) Single Int, 12-Bit, MSPS Serial Micro SO-8 12-Bit, MSPS Serial Micro SO-8 12-Bit, MSPS Serial 6-Lead SOT-23 12-Bit, 5.25 MSPS Power Parallel Output Single-Supply, 8-/1-Channel, 14-Bit Serial Single (2.7 5.5) Int, Single (2.7 5.25) Single (2.7 5.25) MSPS, 12-Bit Channel Sequencer 1.25 MSPS, 12-Bit with 5.25 Dual-Channel/8-Channel, kSPS, 12-Bit Serial 2-/4-Channel Simultaneous Sampling, 12-Bit
AD7490
1000
AD7492
1250
AD7887/88
AD7866
1000
AD7475
1000
AD7495
1000
AD7476
1000
AD7472
1500
AD7856/7851
285/333
Single 12-Bit 14-Bit ADCs with True Bipolar Input Range
Single Single Single 52.5 Single 27.5 Int, Int, Int, Single Single Int, Single 22.5 Single Int, Dual Simultaneous Sampling, kSPS, 12-Bit Parallel Output 12-Bit, Serial kSPS with Vdrive Allowing Interface Processors 4-Channel Simultaneous Sampling, 12-Bit with Parallel Output 12-Bit, Serial 8-Lead Package 14-Bit, Serial 8-Lead Package Simultaneous Sampling Dual kSPS 14-Bit Parallel Output 4-Channel, Simultaneous Sampling, 14-Bit Parallel Output 14-Bit, Single kSPS Parallel
AD7862
AD7898
AD7864
AD7895
AD7894
AD7863
AD7865
AD7899
High Resolution
Single Single Single Single (5), Dual Single Dual Dual Single (2.7 5.25) Single Single Single (2.7 5.5) 27.5 Single 5.25) 1.05
ADCs Industrial Measurement Applications
Ext. Int, 67.5 Int, 16-Bit Serial Output, with Power Dissipation 16-Bit with Input 16-Bit Serial Output Energy Measurement with Serial Port 24-Bit 16-Bit 24-Bit 24-Bit with Input CMOS, 4-Channel, 22-Bit, Serial Output Data Acquisition System with Programmable Gain Amplifier Signal Conditioning with matched Current Sources CMOS, 24-Bit 24-Bit 16-Bit 24-Bit Serial Signal Conditioning with Input Signal Conditioning ADC, Serial Output Noise, 24-Bit Serial Output with Fast Ch-Ch Settling Time
AD7707
AD7709
AD7715
AD7756
AD7708/01
16/24
AD7716
0.14
AD1555
AD7713
AD7714
AD7719
AD7710/11/12
AD7731
Wide Bandwidth
ADCs Signal Processing Applications
Single Dual Serial Output with
AD7729
AD7722 Single Modulator with Post Processor Single Dual MSPS 5th-Order Modulator Single 12.5 MSPS 5th-Order Modulator Single Int, 16-Bit High-Speed Oversampled ADC, Parallel Output Single 12/16-Bit, 312.5 kHz/468.75 kHz, Serial/Parallel Output,
Single
Int,
16-Bit, kSPS, Serial/Parallel Output,
AD7721
AD9260
2500
AD7720
kSPS
12.5 MSPS Modulator
AD7724
kSPS
Dual 12.5 MSPS Modulator
AD7725
kSPS
MSPS
8-Bit 10-Bit, 12-Bit Single ADCs
8/4/1 Single (2.7 5.25) Single 10.5 Int, 10-Bit, 4-Channel, kSPS, Serial 10-Bit, 5.25 1.75 MSPS Power with Parallel Output Single 17.5 kSPS 8-/10-Bit Sampling Single Int, Single (2.35 5.25) 12/10/8-Bit ADC, Power, Fast Throughput 1-Channel, 10-Bit Serial with On-Chip Temp-to-Digital Converter Single Int, 8-Bit, 8/4/1-Channel, MSPS, Parallel Output Single (2.35 5.25) 8-Bit, MSPS Serial 6-Lead SOT-23 Single 17.5 kSPS 8-Bit Sampling Single 17.5 8-Bit Serial 8-Lead SOIC/DIP
AD7823
AD7819
AD7478
1000
AD7829/25/22
2000
AD7478/7/6
8/10/12
1000
AD7417/7418
AD7813
AD7812/7811
AD7470
1750
AD7477
Generic
Resolution Bits
1000 Throughput Rate Analog MSPS Inputs
Single (2.35 5.25) Analog Power Supply Voltage VNOM Single Single Single Single Single Single Single Single Single Single Single Single (3.3) Single Single Single 1300 1100 285/110/65 Int, Int, Int, Int, Int, Int, 250/100/59 Int, Int, 2100 Int, 350/190 Int, 450/250 Int, Int, 1300 Int, Demultiplexed Outputs 505/281 Int, AD9059: Single clock input
Power Diss
10-Bit, MSPS Serial 6-Lead SOT-23 Reference Comments
High-Speed 8-Bit, 10-Bit, 12-Bit, 14-Bit ADCs
Triple 8-Bit, MSPS Optimized Graphics Applications AD9071: Inputs; AD9051: Selectable Bandwidth AD9214: Pin-Similar with AD9235; AD9218: Pin-compatible with AD9288 Demultiplexed Outputs 2-Channel, Gain-Ranging with RSSI AD922x Pin-Compatible Family 12-Bit, 65/40/20 MSPS, Single Multicarrier AD922x Pin-Compatible Family LVDS Demuxed Outputs AD924x Pin-Compatible Family Part SoftCellPin-Compatible with AD9226
AD9057/59
80/60/40
AD9483
140/100
AD9054A
200/135
AD9071/9051
100/60
AD9214/18
105/80/65
AD9410
AD6600
AD9220/23/21
10/3/1.5
AD9235
65/40/20
AD6640
AD9226/24/25
65/40/25
475/415/290 Int,
AD9430
210/170
AD9240/43/41
10/3/1.5
AD6644
65/40
AD9244
65/40
*Partial listing
www.analog.com/bulletins/adc
www.analog.com/bulletins/adc Low-Frequency Signal Multiplication Accumulation
ADE7756 latest integrated circuit provided Analog Devices within ADE775x family energy measurement products. enhancement AD7755 with serial port interface ideal communication with microprocessor provide greater design flexibility, extended intelligent computations, data management.
Energy Measurement
context networked revenue energy meters, ADE7756 provides instantaneous power information through waveform sampling accumulated active energy. ADE7756 uses same AD7755 analog front end, design proven widely used many energy meter customers world. Similar AD7755, ADE7756 contains second-order ADCs that multiply input signals. With this multiplication functionality, ADE7756 extend application beyond energy meters listed textbox below.
CHANNEL
MULTIPLIER
FIXED-FUNCTION SERIAL INTERFACE
CHANNEL
TEMP SENSOR
DIGITAL FREQUENCY 2.5V REFERENCE
ADE7756
Appliance manufacturers step closer developing intelligent home appliances using ADE7756. Power information from each appliance accessed with central microprocessor prioritize load shedding schedule. Alternatively, load shedding decisions made from load profiles avoid occurrence power overload reduce energy consumption. Other energy measurement applications include motor protection manufacturing equipment power monitor. ADE7756 delivers power information microprocessor programmed shut down equipment when reaches certain power threshold.
Nonlinear Load Adaptation
amount power generation equipment reduced with more efficient consumption power distribution. Nonlinear load adaptation improves efficiency optimizing power factor. closed loop system with ADE7756 achieve this optimization. Refer application note (TBD) more detailed information.
Instrumentation (Low-Frequency Demodulator)
multiplication feature ADE7756 enables demodulation low-amplitude signal highamplitude signal. Input signal Channel1 Channel2. Demodulation signal achieved when disabling chip.
Please visit website obtain latest documentation PowerPoint presentation focused ADE7756 features www.analog.com/energymeter
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www.analog.com/bulletins/adc Energy Meter Design Challenges ADE7756 Solution
ELECTRONIC ENERGY METER CHARACTERISTICS
ANALOG FRONT (INPUT)
ADE7756 FEATURES
shunt feasable with internal Programmable Gain Amplifier (PGA) feasable with internal compensation
MEASUREMENT (SIGNAL PROCESSING)
Current range: 200mA 200A Current sensor, Current Transformer (CT) low-value shunt resistor
Accuracy over wide current range Harmonic content 20th harmonics
Accuracy <0.1% over 1000:1 dynamic range Sampling bandwidth 14kHz enough measure 65th harmonics
Display Data Management Multitariff/prepayment
DIGITAL OUTPUT
Fixed-function allows communications low-cost microprocessor through serial port interface
Lifespan exceeding years cost Power dissipation Operating temperature:
ADDITIONAL FEATURES
Accelerated life test proves life expectancy least years Low-cost CMOS process Power dissipation <15mW Operating temperature:
deregulation efforts continue progress North America, more sophisticated equipment expected support Automated Reading Systems across country. diagram summarizes design characteristics electronic energy Analog Devices tackles each design issue with ADE7756 features. provide customers with integrated circuits such ADE7756 simplify current sensor interface intelligent digital output 8-bit microprocessor their electronic energy meters. ADE7756 contains sampled waveform register Active Energy Register capable holding least seconds accumulated power full load. addition, ADE7756 also performs very well across varied temperature range between 40°C 85°C.
APPLICATIONS
energy measurement networked revenue energy meter intelligent home appliance (load shedding) motor protection manufacturing equipment power monitor nonlinear load adaptation instrumentation (low frequency demodulator)
more information quality Analog Devices' energy measurement products, take on-line look AD775x quality brochures website: www.analog.com/energymeter
WORLD'S NUMBER BRAND HIGH-PERFORMANCE ANALOG ICs.
www.analog.com/bulletins/adc
Broadband Modem/Home Networking Mixed Signal Front (MxFETM)
critical importance emerging home networking high-speed access markets performance, time market, cost. keys design these low-cost, high-performance products "smart partitioning," where mixed signal portion signal chain separated from large-scale digital processing. with this philosophy mind that Analog Devices mixed signal front (MxFE) products have been developed. These products perform difficult mixed signal operations single integrated device providing design engineers with considerable flexibility optimizing digital portion system. using their intellectual property design expertise implemented digital gate array ASIC, customers develop products prototypes faster than ever capitalize these rapidly changing markets. certain applications, discrete analog components cost prohibitive have unacceptably high power consumption board space requirements. Combining with filters single chip provides combination cost, performance, size, power dissipation that make complex consumer market communication products feasible.
Analog Devices developed integrated mixed-signal front specifically these costsensitive, high-performance applications. latest line MxFE products, AD9875 AD9876 bring together ADC, DAC, clock, programmable gain amplifier, filters provide level integration performance usually implemented with discrete solutions costing significantly more. AD9875 AD9876 pipelined multistage architecture achieve high sample rates while consuming power. AD9875 contains MSPS, 10-bit converter, while AD9876 houses 12-bit, MSPS converter. Each device also includes 12-bit interpolating TxDACTMs respectively.
HPNA DIGITAL LAYER
QUIET GAIN [5.0] TxSYNC
AD9875
DEMUX INTERPOLATION LPF/BPF TxDAC
PLL-A
CLKA
CLOCK
VREF
GATE OSCIN XTAL
CLKB SYNC
LINE TRANSFORMER MODULE
PLL-B
PHONE LINE
[5.0]
DIGITAL ASIC
SPORT
REGISTER CONTROL
This features makes these parts ideal xDSL well phone power line networking applications. AD9875 AD9876 contain optimized mixed signal technology provide excellent dynamic performance variety modulation formats. Multiplexed digital signal lines allow this performance housed economical, space-saving 48-lead LQFP package. diagram above shows AD9875 phone line networking application that capable data rates MBPS using modulation. mixed-signal/digital separation allows digital ASIC
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implemented most cost-effective geometry possible. Because modulation coding located ASIC, customers maximize their "value added." low-cost CMOS mixed-signal front converter broadband networking/modems 10-bit/12-bit direct converter (TxDAC 64/32 MSPS input word rate interpolation BP-transmit filter MSPS output update rate transmit bandwidth power-down modes 10-bit/12-bit, MSPS direct converter order low-pass filter with bypass programmable gain amplifier clock multiplier (PLL) clock outputs internal
voltage regulator controller 48-lead LQFP package
Similarly, accompanying diagram illustrates, AD9876 provides optimum partitioning power line VDSL modem. With integrated programmable gain amplifier, low-pass filter, 12-bit combination with interpolation filter 12-bit TxDAC, AD9876 provides nearly entire analog portion signal chain, 48-lead LQFP package. adding analog filters line drivers, customers move quickly market with power line VDSL modem product without large up-front investment required custom integrated solution. Both AD9875 AD9876 further reduce system cost through their integration internal clock multiplier system clock outputs. This allows entire system clock implemented with inexpensive low-frequency crystal.
POWER LINE MODEM
AD8019
HPNA DIGITAL LAYER
QUIET GAIN [5.0] SYNC
AD9876
DEMUX INTERPOLATION LPF/BPF TxDAC
COUPLER
PASSIVE
AD8138
PLL-A
MODULATION SCHEME: OFDM RATE ADAPTIVE 13.75Mbps) HALF-DUPLEX SPECTRAL BAND: 4.5MHz 20.7 POWER: mVRMS, INTO
CLKA
CLOCK
VREF
GATE OSCIN XTAL
CLKB SYNC
PLL-B
VDSL MODEM
[5.0]
PASSIVE
AD8018 PASSIVE
DIGITAL ASIC
SPORT
REGISTER CONTROL
HYBRID MODULATION SCHEME: QAM/DMT/FMT RATE ADAPTIVE 51Mbps/6.5Mbps) FULL-DUPLEX SPECTRAL BAND: POWER: VRMS, INTO
AD8022
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Precision Multichannel Input Flexibility
ADCs Offer Unmatched
Designers pressured both increase channel count data acquisition applications increase channel flexibility their systems allow wide range full-scale input voltages from both differential single-ended input sources. Modern low-power data acquisition systems must accept wide range different input signals. instance, more channels might differential require ratiometric conversion, using ratiometric reference. Other channels might single-ended require absolute conversion requiring absolute reference. these different requirements cost? Analog Devices solved this dilemma introducing multichannel ADCs that address these concerns.
AD7708 AD7718 multichannel, ADCs, with AD7708 having 16-bit resolution AD7718 having 24-bit resolution. devices pin-, software-, functionally compatible with each other easy system upgrade capability. They configured either four differential channels eight single-ended channels. They offer choice differential reference inputs when only single (differential) reference source preferred, they operate with five differential inputs single-ended inputs. rail-to-rail input buffer permits wide range source impedances while input allows full-scale input signals range from 2.56 when operating from reference. 24-bit no-missing-code ADC-AD7718 16-bit no-missing-code ADC-AD7708 rail-to-rail input buffer single 5.25 operation operates with reference voltages from choice differential reference inputs 8-channel mode offset gain drift calibration cycles required calibrate gain offset error power consumption less than master clock frequency 2-pin port 28-lead SOIC TSSOP packages
AVDD
DVDD
REFIN1( REFIN2( REFIN1( REFIN2( XTAL
XTAL
AIN1 AIN2 AIN3 16-/24-BIT AIN4 MUX1 AIN5
MODULATOR PROGRAMMABLE DIGITAL FILTER
REFIN(
REFIN(
CLOCK GENERATION
DOUT SERIAL INTERFACE CONTROL LOGIC SCLK RESET PORT
AIN6 AIN7 AIN8
AD7708/AD7718
AGND AGND DGND
APPLICATIONS
AD7708 AD7718
low-power data acquisition field instruments smart transmitters loop-powered instruments battery-powered instrumentation
Price $6.00 (100s) Price $9.17 (100s)
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Reducing Physical Size Cost While Increasing Functionality Hand-Held Instruments Puts Designers Test
Designers power hand-held instrumentation challenged increase functionality their designs incorporating more more features while reducing physical size cost solution. Typically converter this market would either low-performance integrating higher-performance 16-bit with additional functions added externally. demand with on-chip sensor excitation circuitry simplify peripheral design being Analog Devices' 16-bit ADC, which addresses these very concerns.
AD7709 16-bit with programmable front-end allow choice between differential inputs, four pseudo-differential inputs, differential pseudodifferential inputs. three current sources under software control that switched manner designated package pins, low-side power switches capable sinking each, selectable differential reference inputs allow both ratiometric absolute measurements taken same design, finally, shared 4-bit digital port. 14-bit accurate, 16-bit no-missing-code single operation three ratio-matched switchable current sources master clock frequency switchable reference inputs greater flexibility operates with reference voltages from operating standby power consumption low-side power switches digital output pins digital input pins SPI-compatible interface 24-lead SOIC TSSOP packages
REFIN1( REFIN2( REFIN1( REFIN2(
AIN1 AIN2 AIN3/P3 AIN4/P4 16-BIT 32kHz CLOCK OSCILLATOR MCLK REFIN( REFIN(
MCLK
AD7709
FUNCTION CONTROLLER CONTROL LOGIC SERIAL INTERFACE
SW2/P2 SW1/P1
RESET
SCLK DOUT
IOUT1
IOUT2
APPLICATIONS
AD7709
consumer hand-held instrumentation battery-powered instrumentation loop-powered instrumentation low-power data acquisition
Price $6.00 (100s)
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Many Applications Today Require ADCs That Offer Fast Throughput Rates Single Supplies, Small Package Size, Fully Specified Performance.
AD747x AD749x families 8-/10-/12-bit pin-compatible successive approximation ADCs that were designed one-micron fabrication process. principal features very power (4.8 mW), power supply operation, MSPS throughput rate. devices handle input frequencies have flexible power dissipation versus speed control. architecture ensures pipeline delay experienced similar speed-flash/half-flash architectures. AD7478/AD7477/AD7476 pin-compatible 8-/10-/12-bit ADCs that come SOT-23 package. AD7475 AD7495 come slightly larger 8-lead SOIC packages have more flexible reference options; AD7495 on-chip reference. Digital interface high-speed serial port that SPI-/ QSPITM-/MICROWIRETM- DSP-compatible. AD7470/AD7472/AD7492 pin-compatible 10-/12-bit ADCs with parallel interface. AD7492 internal reference. family AD7866. AD7866 dual, 2-channel, 12-bit with simultaneous sampling. serial interface that SPI-/QSPI-/MICROWIRE- DSP-compatible. Also AD7490, 16-channel, 12-bit with MSPS sample rate. channel selection varied with on-chip sequencer. comes 24-lead TSSOP package.
Low-Power, 1MSPS Family
PINCOMPATIBLE
Generic AD7478 AD7477 AD7476
kSPS 1000 1000 1000
Generic AD7470 AD7472 AD7492
kSPS 1750 1500 1200
On-Chip
CMOS Cores 2.3V 5.5V Power Supply 1MSPS 4.8mW 16-CHANNEL SERIAL Generic AD7490
NEW-16
-CHANN
kSPS 1000
Generic AD7866
kSPS 1000
PINCOMPATIBLE
Generic AD7475 AD7495
kSPS 1000 1000 On-Chip
NNEL 2-CHA DUAL NEW-
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Precision Voltage References SOT-23 High-Resolution Data Converter Applications
Precision voltage references critical element data converter architectures. While many converter applications rely internal reference integrated converter chip, there many others that require additional stability accuracy external precision reference. When using voltage reference with data converters, important fully understand impact temperature drift converter's performance. nonlinearity reference output drift over temperature represents additional error that cannot easily calibrated overall data converter system.
Voltage Reference Data Converters
ADR39x ADR38x families voltage reference products have number features that make them ideally suited with converters. supply voltage requirement makes possible ADR39x ADR38x with today's converters that supplies without having higher supply voltage reference.
ANALOG SUPPLY
AVDD
VOUT
DVDD VREF SLEEP MODE DRDY AD7701 SCLK SDATA CLKIN CLKOUT AGND DGND AVSS DVSS
ADR390/1
DATA READY READ (TRANSMIT) SERIAL CLOCK SERIAL CLOCK
RANGES SELECT CALIBRATE
Shutdown Mode Operation
ADR390/ADR391 includes shutdown feature that TTL/CMOS-level compatible. logic zero volt condition SHDN required turn device off. During shutdown, output reference becomes high impedance state where potential would then determined external circuitry. shutdown feature used, SHDN should connected (Pin ADR380/ ADR381 ADR390/ADR391 precision 2.048 2.50 bandgap voltage references featuring high accuracy, high stability, power consumption, tiny footprint SOT-23 package. initial accuracy: 0.24% tempco: 25ppm/°C cost with high-precision performance Precision bandgap references with excellent voltage output nonlinearity versus temperature characteristics. AD1582 (2.5 AD1583 (3.0 AD1584 (4.096 AD1585 (5.0 improved design family low-cost, low-power, low-dropout, precision bandgap references. These designs available three-terminal (series) devices, three grades packaged compact SOT-23, 3-lead, surface-mount package. These references present cost-effective solution high-resolution data converters. better understand impact voltage output nonlinearity versus temperature drift have data converter, refer figure right, where measured drift characteristic normalized point average drift. residual drift error AD1582 approximately demonstrates that this family references compatible with data converter systems that require 12-bit accuracy within operating temperature range.
ANALOG INPUT ANALOG GROUND
ANALOG SUPPLY
APPLICATIONS
ADR380 ADR381 ADR390 ADR391
battery-powered instrumentation portable medical instruments data acquisition systems hard disk drives, automotive
Price $1.27/3k Price $1.27/3k Price $1.39/3k Price $1.39/3k
VOUT
TEMPERATURE
APPLICATIONS
AD1582A AD1583A AD1584A AD1585A
12-bit data converters portable, battery-powered equipment notebook computers, cellular phones, pagers, PDAs, GPSs, DMMs computer workstations wide range video RAMDACs PCMCIA cards automotive hard disk drives
Price $0.60/5k Price $0.58/5k Price $0.58/5k Price $0.58/5k
more information voltage references, visit www.analog.com/references
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Digitize Handwriting 12-Bit Resolution with AD7873 AD7843
AD7873 AD7843 pin-compatible 12-bit successive approximation ADCs that have on-resistance switches driving touch screens. These parts operate from single 5.25 power supply feature throughput rates greater than kSPS. They include shutdown mode that reduces current consumption less than external reference applied AD7873/AD7843 varied from VCC, while analog input range from VREF. Unlike AD7843, AD7873 added functionality such on-chip temperature sensor 40°C 85°C), on-chip reference, direct battery touch-pressure measurement. These parts available 16-lead QSOP TSSOP packages.
FEATURES Integration 12-bit with on-resistance switches Direct battery touch-pressure measurement On-chip reference (AD7873 only) protection analog inputs (IEC discharge) 12-bit NMCs Open drain, fast CMOS logic signal hose AD7873 AD7843 1.368
Accuracy Interrupt Function Power Consumption
KSPS 1.368 KSPS 2.412 Pin-Compatible Price AD7873ARQ $2.30 AD7843ARQ $2.15
AD7873 AD7843 completely pin-compatible
ANALOG DEVICES' SOLUTIONS BULLETINS GLANCE
ADCs DACs Amplifiers Communications Low-Power Solutions High-Speed Linear
APPLICATIONS
personal digital assistants smart hand-held devices touchscreen monitors pagers
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