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MAX5383 MAX5384 MAX5385


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MAX5383 - MAX5383  
MAX5384 - MAX5384  
MAX5385 - MAX5385  

19-1718; 1/09
Low-Cost, Low-Power, 8-Bit DACs with 3-Wire Serial Interface SOT23
MAX5383/MAX5384/MAX5385 low-cost, 8-bit digitalto-analog converters (DACs) miniature 6-pin SOT23 packages have simple 3-wire, SPITM/QSPITM/ MICROWIRETM-compatible serial interface that operates 10MHz. MAX5383 internal reference operates from +2.7V +3.6V supply. MAX5384 internal reference operates from +4.5V +5.5V supply. MAX5385 operates over full +2.7V +5.5V supply range internal reference equal VDD. MAX5383/MAX5384/MAX5385 require extremely supply current only 150µA (typ) provide buffered voltage output. These devices power zero code remain there until code written registers. This provides additional safety applications that drive valves other transducers that need power-up. MAX5383/MAX5384/ MAX5385 include 1µA, low-power shutdown mode that features software-selectable output loads 100k, ground.
Features
8-Bit Resolution Miniature 6-Pin SOT23 Package Wide +2.7V +5.5V Supply Range (MAX5385) <1µA Shutdown Mode Software-Selectable Output Resistance During Shutdown Buffered Output Drives Resistive Loads Low-Glitch Power-On Reset Zero Output 3-Wire SPI/QSPI/MICROWIRE-Compatible Interface Full-Scale Error (MAX5385) ±1LSB INL/DNL 230µA (max) Supply Current
MAX5383/MAX5384/MAX5385
Ordering Information
PART TEMP RANGE PINPACKAGE MARK AADF AAAH AADH AAAI AADJ AAAJ
Applications
Automatic Tuning (VCO) Power Amplifier Bias Control Programmable Threshold Levels Automatic Gain Control Automatic Offset Adjustment
MAX5383EUT+T -40°C +85°C SOT23 MAX5383EZT+T -40°C +85°C SOT23-Thin MAX5384EUT+T -40°C +85°C SOT23 MAX5384EZT+T -40°C +85°C SOT23-Thin MAX5385EUT+T -40°C +85°C SOT23 MAX5385EZT+T -40°C +85°C SOT23-Thin
+Denotes lead(Pb)-free/RoHS-compliant package. Tape reel.
Selector Guide
PART INTERNAL REFERENCE
QSPI trademarks Motorola, Inc. MICROWIRE trademark National Semiconductor Corp.
MAX5383 MAX5384 MAX5385
Typical Operating Circuit
+2.7V +5.5V
Configuration
VIEW
MC68XXXX PCS0 MOSI SCLK
MAX5385
MAX5383 MAX5384 MAX5385
SCLK
SOT23
Maxim Integrated Products
price, delivery, place orders, please contact Maxim Distribution 1-888-629-4642, visit Maxim's website www.maxim-ic.com.
Low-Cost, Low-Power, 8-Bit DACs with 3-Wire Serial Interface SOT23 MAX5383/MAX5384/MAX5385
ABSOLUTE MAXIMUM RATINGS
.-0.3V .-0.3V (VDD 0.3V) SCLK, .-0.3V Maximum Current into Pin.50mA Continuous Power Dissipation +70°C) 6-Pin SOT23 (derate 8.7mW/°C above +70°C).696mW Operating Temperature Range .-40°C +85°C Storage Temperature Range .-65°C +150°C Maximum Junction Temperature .+150°C Lead Temperature (soldering, 10s) .+300°C
Stresses beyond those listed under "Absolute Maximum Ratings" cause permanent damage device. These stress ratings only, functional operation device these other conditions beyond those indicated operational sections specifications implied. Exposure absolute maximum rating conditions extended periods affect device reliability.
ELECTRICAL CHARACTERISTICS
(VDD +2.7V +3.6V (MAX5383), +4.5V +5.5V (MAX5384), +2.7V +5.5V (MAX5385), 10k, 50pF, TMIN TMAX, unless otherwise noted. Typical values +25°C.)
PARAMETER STATIC ACCURACY Resolution Integral Linearity Error Differential Linearity Error Offset Error Offset Error Supply Rejection Offset Error Temperature Coefficient Full-Scale Error Full-Scale Error Supply Rejection Full-Scale Error Temperature Coefficient OUTPUT MAX5383 Internal Reference Voltage (Note MAX5384 MAX5385 Output Load Regulation Shutdown Output Resistance DYNAMIC PERFORMANCE Voltage Output Slew Rate Output Settling Time Digital Feedthrough Positive negative LSB, 50pF load (Note Code digital inputs from V/µs Code 255, 100µA Code 100µA [D13, D12] VOUT [D13, D12] [D13, D12] 0.85 100k 0.95 (Note Guaranteed monotonic (Note MAX5385 (Notes MAX5383/MAX5384 MAX5385 Code 255, load Code (Note Code MAX5383/MAX5384 MAX5385 MAX5383/MAX5384 MAX5383/MAX5384 MAX5385 Bits ppm/ ideal ppm/ SYMBOL CONDITIONS UNITS
Low-Cost, Low-Power, 8-Bit DACs with 3-Wire Serial Interface SOT23
ELECTRICAL CHARACTERISTICS (continued)
(VDD +2.7V +3.6V (MAX5383), +4.5V +5.5V (MAX5384), +2.7V +5.5V (MAX5385), 10k, 50pF, TMIN TMAX, unless otherwise noted. Typical values +25°C.)
PARAMETER Digital-Analog Glitch Impulse Wake-Up Time POWER REQUIREMENTS MAX5383 Supply Voltage MAX5384 MAX5385 Supply Current DIGITAL INPUTS Input Voltage Input High Voltage Input Hysteresis Input Capacitance Input Leakage Current (Note 0.05 load, digital inputs code Shutdown mode SYMBOL CONDITIONS Code From software shutdown UNITS
MAX5383/MAX5384/MAX5385
TIMING CHARACTERISTICS
(Figures +2.7V +3.6V (MAX5383), +4.5V +5.5V (MAX5384), +2.7V +5.5V (MAX5385), 10k, 50pF, TMIN TMAX, unless otherwise noted. Typical values +25°C.) (Note
PARAMETER SCLK Period SCLK Pulse Width High SCLK Pulse Width Fall SCLK Rise Setup Time SCLK Rise Rise Hold Time Setup Time Hold Time SCLK Rise Fall Delay SYMBOL tCSS tCSH tCS0 CONDITIONS UNITS
Low-Cost, Low-Power, 8-Bit DACs with 3-Wire Serial Interface SOT23 MAX5383/MAX5384/MAX5385
TIMING CHARACTERISTICS (continued)
(Figures +2.7V +3.6V (MAX5383), +4.5V +5.5V (MAX5384), +2.7V +5.5V (MAX5385), 10k, 50pF, TMIN TMAX, unless otherwise noted. Typical values +25°C.) (Note
PARAMETER Rise SCLK Rise Hold Pulse Width High SYMBOL tCS1 tCSW CONDITIONS UNITS
Note Note Note Note Note Note Note
Guaranteed from code code 255. offset value extrapolated from range over which guaranteed. MAX5385 tested ±10%. MAX5383 tested ±10%; MAX5384 tested ±10%. Actual output voltages full-scale 255/256 VREF. Output settling time measured stepping from code code 255, from code code Guaranteed design.
Typical Operating Characteristics
(VDD +3.0V (MAX5383), +5.0V (MAX5384/MAX5385), +25°C, unless otherwise noted.)
INTEGRAL NONLINEARITY SUPPLY VOLTAGE
MAX5383/4/5-01 MAX5383/4/5-02
INTEGRAL NONLINEARITY CODE
0.075 0.050 0.025 (LSB) (LSB) -0.025 -0.050 -0.15 -0.075 -0.100 -0.20 CODE
INTEGRAL NONLINEARITY TEMPERATURE
MAX5383/4/5-03
-0.05 (LSB)
-0.10
-0.025
-0.050 SUPPLY VOLTAGE TEMPERATURE (°C)
DIFFERENTIAL NONLINEARITY CODE
MAX5383/4/5-04
DIFFERENTIAL NONLINEARITY SUPPLY VOLTAGE
MAX5383/4/5-05
DIFFERENTIAL NONLINEARITY TEMPERATURE
MAX5383/4/5-06
-0.005
-0.005
0.010 0.005 (LSB) -0.005 -0.010 -0.015 -0.020 CODE
(LSB)
-0.015
(LSB)
-0.010
-0.010
-0.015
-0.020
-0.020
-0.025 SUPPLY VOLTAGE
-0.025 TEMPERATURE (°C)
Low-Cost, Low-Power, 8-Bit DACs with 3-Wire Serial Interface SOT23
Typical Operating Characteristics (continued)
(VDD +3.0V (MAX5383), +5.0V (MAX5384/MAX5385), +25°C, unless otherwise noted.)
TOTAL UNADJUSTED ERROR CODE
MAX5383/4/5-07
MAX5383/MAX5384/MAX5385
OFFSET ERROR SUPPLY VOLTAGE
MAX5383/4/5-08
OFFSET ERROR TEMPERATURE
MAX5383/4/5-09
0.15 0.10 0.05 (LSB) -0.05 -0.10 -0.15 -0.20 CODE
(mV)
(mV)
-0.25
-0.25
-0.50 SUPPLY VOLTAGE
-0.50 TEMPERATURE (°C)
FULL-SCALE ERROR SUPPLY VOLTAGE
0.75 0.50 FULL-SCALE ERROR (LSB) 0.25 -0.25 -0.50 -0.75 SUPPLY VOLTAGE
MAX5383/4/5-10
FULL-SCALE ERROR TEMPERATURE
FULL-SCALE ERROR (LSB) FULL-SCALE ERROR 0.75 0.50 0.25 MAX5385 -0.25 -0.50 -0.75 TEMPERATURE (°C) -0.4 -0.8 -1.2 MAX5383 MAX5384
MAX5383/4/5-11
MAX5384 MAX5383 MAX5385
FULL-SCALE ERROR
-0.4 -0.8 -1.2
SUPPLY CURRENT SUPPLY VOLTAGE
MAX5383/4/5-12
SUPPLY CURRENT TEMPERATURE
LOAD
MAX5383/4/5-13
SUPPLY CURRENT (µA) MAX5385 MAX5384 MAX5383
SUPPLY CURRENT (µA)
MAX5384
MAX5385 MAX5383
SUPPLY VOLTAGE
TEMPERATURE (°C)
Low-Cost, Low-Power, 8-Bit DACs with 3-Wire Serial Interface SOT23 MAX5383/MAX5384/MAX5385
Typical Operating Characteristics (continued)
(VDD +3.0V (MAX5383), +5.0V (MAX5384/MAX5385), +25°C, unless otherwise noted.)
SHUTDOWN SUPPLY CURRENT SUPPLY VOLTAGE
MAX5383/4/5-14 MAX5383/4/5-15
SUPPLY CURRENT CODE
SUPPLY CURRENT (µA) CODE MAX5384 MAX5385 SUPPLY CURRENT (µA)
SHUTDOWN SUPPLY CURRENT TEMPERATURE
MAX5383/4/5-16
SUPPLY CURRENT (µA)
MAX5383
MAX5383
SUPPLY VOLTAGE
TEMPERATURE (°C)
OUTPUT LOAD REGULATION
VOUT FULL SCALE LOAD CURRENT (mA) MAX5384/MAX5385, +4.5V, FULL SCALE SOURCING MAX5383, FULL SCALE, +2.7V SINKING, +5.0V SOURCING MAX5383, FULL SCALE, +2.7V SOURCING ZERO CODE, +2.7V SINKING ZERO CODE, +5.5V SINKING VOUT ZERO CODE 2V/div 50mV/div
MAX5383/4/5-17
OUTPUT VOLTAGE POWER-UP
MAX5383/4/5-18
MAX5383 OUTPUT VOLTAGE EXITING SHUTDOWN
MAX5383/4/5-19
500mV/div
3V/div
4µs/div SHDN
10µs/div
MAX5383 OUTPUT SETTLING FROM 1/4FS 3/4FS
MAX5383/4/5-20
MAX5383 OUTPUT SETTLING FROM 3/4FS 1/4FS
MAX5383/4/5-21
0.5V/div
0.5V/div
3V/div
3V/div
1µs/div
1µs/div
Low-Cost, Low-Power, 8-Bit DACs with 3-Wire Serial Interface SOT23
Typical Operating Characteristics (continued)
(VDD +3.0V (MAX5383), +5.0V (MAX5384/MAX5385), +25°C, unless otherwise noted.)
MAX5383/MAX5384/MAX5385
MAX5383 OUTPUT SETTLING 1LSB STEP
MAX5383/4/5-22
MAX5383 OUTPUT SETTLING 1LSB STEP DOWN
MAX5383/4/5-23
20mV/div AC-COUPLED
20mV/div AC-COUPLED
3V/div
3V/div
2µs/div
2µs/div
Description
NAME SCLK DESCRIPTION Voltage Output Ground Power-Supply Input Serial Data Input Serial Clock Input Chip-Select Input
Analog Section
MAX5383/MAX5384/MAX5385 employ currentsteering topology shown Figure core reference voltage-to-current converter (V/I) that generates reference current. This current mirrored equally weighted current sources. switches control outputs these current mirrors that only desired fraction total current-mirror currents steered output. current then converted voltage across resistor, this voltage buffered output buffer amplifier.
Detailed Description
MAX5383/MAX5384/MAX5385 voltage-output, 8-bit DACs ensure monotonic performance offering full 8bit performance with less than 1LSB integral nonlinearity error less than 1LSB differential nonlinearity error. devices simple 3-wire, SPI/QSPI/ MICROWIRE-compatible serial interface that operates 10MHz. They include internal reference, output buffer, three low-current shutdown modes, making these devices ideal low-power, highly integrated applications. Figure shows devices' functional diagram.
Output Voltage Table shows relationship between code analog output voltage. 8-bit code binary unipolar with 1LSB (VREF/256). MAX5383/ MAX5384 have full-scale output voltage (+2V 1LSB) (+4V 1LSB), internal references. MAX5385 full-scale output voltage (0.9 1LSB). Output Buffer voltage output internally buffered unitygain follower that slews ±0.4V/µs. output swing from full scale. With 1/4FS 3/4FS output transition, amplifier outputs typically settle 1/2LSB less than when loaded with parallel with 50pF. buffer amplifiers stable with
Low-Cost, Low-Power, 8-Bit DACs with 3-Wire Serial Interface SOT23 MAX5383/MAX5384/MAX5385
CURRENT-STEERING
SCLK CONTROL LOGIC DATA LATCH SERIAL INPUT REGISTER
MAX5383 MAX5384 MAX5385
Figure Functional Diagram
combination resistive loads >10k capacitive loads <50pF.
VREF
SW255
Power-On Reset MAX5383/MAX5384/MAX5385 have power-on reset circuit DAC's output when first applied when dips below 1.7V (typ). This ensures that unwanted output voltages will occur immediately following system startup, such after loss power. output glitch startup typically less than 50mV.
Figure Current-Steering Topology
Table Unipolar Code Output Voltage
OUTPUT VOLTAGE CODE [D11-D4] MAX5383 (255/256) 7.8mV MAX5384 (255/256) 15.6mV MAX5385 (255/256)
Shutdown Mode MAX5383/MAX5384/MAX5385 include three software-controlled shutdown modes that reduce supply current <1µA. internal circuitry disabled, known impedance placed from ensure while shutdown. Table details three shutdown modes operation.
Digital Section
3-Wire Serial Interface
MAX5383/MAX5384/MAX5385s' digital interface standard 3-wire connection compatible with SPI/QSPI/MICROWIRE interfaces. chip-select input (CS) frames serial data loading data-input (DIN). Immediately following CS's high-to-low transition, data shifted synchronously latched into input register rising edge serial clock input (SCLK). After bits have been loaded into serial
1111 1111 1000 0000 0000 0001 0000 0000
Low-Cost, Low-Power, 8-Bit DACs with 3-Wire Serial Interface SOT23
input register, transfers contents latch CS's low-to-high transition (Figure Note that kept during entire SCLK cycles, data will corrupted. this case, reload latch with 16-bit word. serial clock (SCLK) idle either high between transitions. Figure shows complete 3-wire serial interface transmission. Table lists serial interface mapping.
Digital Inputs Interface Logic
digital interface 8-bit based 3-wire standard that compatible with SPI, QSPI, MICROWIRE interfaces. three digital inputs (CS, DIN, SCLK) load digital input serially into DAC. digital inputs include Schmitt-trigger buffers accept slow-transition interfaces. This means that optocouplers interface directly MAX5383/ MAX5384/MAX5385 without additional external logic. digital inputs compatible with CMOS logic levels driven with voltages +5.5V regardless supply voltage.
MAX5383/MAX5384/MAX5385
Applications Information
Device Powered External Reference
Since MAX5385 generates output voltage proportional VDD, noisy power supply will affect accuracy on-board reference, thereby affecting overall accuracy DAC. circuit Figure rejects this power-supply noise powering device directly with precision voltage reference, improving overall system accuracy. MAX6103 (+3V, 75ppm) MAX6105 (+5V, 75ppm) precision voltage references ideal choices power requirements MAX5385. This solution also useful when required full-scale output voltage different from available supply voltages.
Power-Supply Bypassing Layout
Careful board layout important best system performance. reduce crosstalk noise injection, keep analog digital signals separate. ensure that ground return from supply ground short impedance, ground plane recommended. Bypass with 0.1µF capacitor ground close possible device. supply excessively noisy, connect resistor series with supply additional capacitance.
Table Shutdown Modes
CODE [D13 D12] MODE Shutdown Shutdown Shutdown OUTPUT RESISTANCE GROUND 100k MAXIMUM SUPPLY CURRENT
Table Serial Interface Mapping
16-BIT SERIAL WORD XX00 XX00 XX00 XX00 XX01 XX10 XX11
Don't care
ANALOG OUTPUT VREF (255/256) VREF (1/256) VREF (128/256) XXXX XXXX XXXX XXXX XXXX XXXX XXXX
FUNCTION Normal operation Normal operation Normal operation Normal operation Shutdown, Shutdown, 100k Shutdown,
0000 1111 0000 1000 XXXX XXXX XXXX
0000 1111 0001 0000 XXXX XXXX XXXX
Low-Cost, Low-Power, 8-Bit DACs with 3-Wire Serial Interface SOT23
;;;;;;;; ;;;;;;;;;
tCSH tCSO tCSS tCS1 SCLK
MAX5383/MAX5384/MAX5385
Figure 3-Wire Serial Interface Timing Diagram
UPDATED
SCLK
Figure Complete 3-Wire Serial Interface Transmission
Chip Information
+3.2V +12V
TRANSISTOR COUNT: 2160
MAX6103 +3.00V 0.1µF
SCLK MAX5385 +2.7V
Figure Powering MAX5385 with Precision Voltage Reference
Low-Cost, Low-Power, 8-Bit DACs with 3-Wire Serial Interface SOT23
Package Information
latest package outline information land patterns, www.maxim-ic.com/packages. Note that "+", "#", package code indicates RoHS status only. Package drawings show different suffix character, drawing pertains package regardless RoHS status. PACKAGE TYPE SOT23 SOT23-Thin PACKAGE CODE U6-4 Z6-1 DOCUMENT 21-0058 21-0114 6LSOT.EPS
PACKAGE OUTLINE, BODY
MAX5383/MAX5384/MAX5385
21-0058
Low-Cost, Low-Power, 8-Bit DACs with 3-Wire Serial Interface SOT23 MAX5383/MAX5384/MAX5385
Package Information (continued)
latest package outline information land patterns, www.maxim-ic.com/packages. Note that "+", "#", package code indicates RoHS status only. Package drawings show different suffix character, drawing pertains package regardless RoHS status.
PACKAGE OUTLINE, BODY
21-0058
Low-Cost, Low-Power, 8-Bit DACs with 3-Wire Serial Interface SOT23
Package Information (continued)
latest package outline information land patterns, www.maxim-ic.com/packages. Note that "+", "#", package code indicates RoHS status only. Package drawings show different suffix character, drawing pertains package regardless RoHS status. THIN SOT23.EPS
MAX5383/MAX5384/MAX5385
Low-Cost, Low-Power, 8-Bit DACs with 3-Wire Serial Interface SOT23 MAX5383/MAX5384/MAX5385
Package Information (continued)
latest package outline information land patterns, www.maxim-ic.com/packages. Note that "+", "#", package code indicates RoHS status only. Package drawings show different suffix character, drawing pertains package regardless RoHS status.
Low-Cost, Low-Power, 8-Bit DACs with 3-Wire Serial Interface SOT23
Revision History
REVISION NUMBER REVISION DATE 1/09 DESCRIPTION Added lead-free designation parts Ordering Information added 21-0058 package diagram PAGES CHANGED
MAX5383/MAX5384/MAX5385
Maxim cannot assume responsibility circuitry other than circuitry entirely embodied Maxim product. circuit patent licenses implied. Maxim reserves right change circuitry specifications without notice time.
Maxim Integrated Products, Gabriel Drive, Sunnyvale, 94086 408-737-7600
2009 Maxim Integrated Products Maxim registered trademark Maxim Integrated Products, Inc.

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