HMC675LC3C

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HMC675LC3C - HMC675LC3C

HMC675LC3C
v03.1009
LATCHED COMPARATOR WITH RSCML OUTPUT STAGE
Features
Propagation Delay: Overdrive Slew Rate Dispersion: Minimum Pulse Width: Resistor Programmable Hysteresis Differential Latch Control Active Gain: Power Dissipation: RSPECL RSECL Versions Available Lead 3x3mm Package:
COMPARATORS
HMC675LC3C ideal for: Applications High Speed Instrumentation Digital Receiver Systems Pulse Spectroscopy High Speed Trigger Circuits Clock Data Restoration
Functional Diagram
General Description
HMC675LC3C SiGe monolithic, ultra fast comparator which features reduced swing output drivers latch inputs. comparator supports Gbps operation while providing propagation delay minimum pulse width with random jitter (RJ). Overdrive slew rate dispersion typically making device ideal wide range applications from broadband communications. reduced swing output stage designed directly drive into Ohms terminated GND. HMC675LC3C features high speed latch programmable hysteresis configured operate either latch mode, tracking comparator.
Electrical Specifi cations
+25C Vcci= +3.3V, Vcco -3V, TERM
Parameter Input Voltage Range Input Differential Voltage Input Offset Voltage Input Offset Voltage, Temperature Coefficient Input Bias Current Input Bias Current Temperature Coefficient Input Offset Current Input Impedance Common Mode Input Impedance Differential Input Impedance Active Gain Common Mode Rejection Ratio Hysteresis Rhys Conditions Min. -1.75 Typ. 1.75 Units
price, delivery, place orders, please contact Hittite Microwave Corporation: Alpha Road, Chelmsford, 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line www.hittite.com
HMC675LC3C
v03.1009
LATCHED COMPARATOR WITH RSCML OUTPUT STAGE
Latch Enable Characteristics
Parameter Latch Enable Input Impedance Latch Output Delay, tPDOL tPDOH Latch Minimum Pulse Width, Latch Enable Input Range Latch Setup Time, Latch Hold Time, Conditions Each Min. Typ. Units
COMPARATORS
Output Characteristics, with
Parameter Output Voltage High Level, Output Voltage Level, Output Voltage Differential Swing Conditions Min. -420 -400 Typ. -380 Units
Performance
Parameter Propagation Delay tPD, tPDL tPDH Propagation Delay, Temperature Coefficient Propagation Delay Skew (Rising Falling Transition) Dispersion Common Mode Dispersion, -1.75V <Vcm <1.75V Noise (RTI) Equivalent Input Bandwidth Deterministic Jitter (pp) Random Jitter (rms) Minimum Pulse Width Rise Time Fall Time From From Deterministic Jitter Gbps with ±100mV Overdrive Random Jitter Gbps with ±100mV Overdrive 50mV Conditions Min. Typ. 0.45 10.5 Units nV/(Hz)
Power Supply Requirements
Parameter Input Supply Current, Icci Output Supply Current, Icco Current, Power Dissipation, PSRR, Vcci PSRR, Conditions Min. Typ. Units
Note Equivalent Input Bandwidth calculated with following formula: Bweq=0.22/ (TRCOMP2 -TRIN where TRIN 20%/80% transition time quasi-Gaussian signal applied comparator input, TRCOMP effective transition time digitized comparator.
price, delivery, place orders, please contact Hittite Microwave Corporation: Alpha Road, Chelmsford, 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line www.hittite.com
HMC675LC3C
v03.1009
LATCHED COMPARATOR WITH RSCML OUTPUT STAGE
Dispersion Overdrive Voltage
Propagation Delay Common Mode[1]
12.5
DISPERSION (ps)
OVERDRIVE VOLTAGE (mV)
Rising Edge Falling Edge
COMPARATORS
Rising Edge Falling Edge
-2.5 -1.5 -0.5 COMMON MODE VOLTAGE (mV)
Output Voltage Temperature
Comparator Hysteresis Rhys Control Resistor
HYSTERESIS (mV)
VOLTAGE
-0.1 -0.2 -0.3 -0.4 -0.5 -0.6
1000
10000
TEMPERATURE
RESISTANCE (Ohm)
Diagram
Vcci 3.3V, Vcc0 -3V, VTERM
price, delivery, place orders, please contact Hittite Microwave Corporation: Alpha Road, Chelmsford, 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line www.hittite.com
HMC675LC3C
v03.1009
LATCHED COMPARATOR WITH RSCML OUTPUT STAGE
Timing Diagram
COMPARATORS
Symbol tPDH tPDL tPLDH tPLDL Timing Input output high delay Input output delay Latch enable output high delay Latch enable output delay Minimum hold time Minimum latch enable pulse width Minimum setup time Output rise time Output fall time Voltage overdrive Description Propagation delay measured from time input signal crosses reference input offset voltage) point output low-to-high transition. Propagation delay measured from time input signal crosses reference input offset voltage) point output high-to-low transition. Propagation delay measured from point latch enable signal low-to-high transition point output low-to-high transition. Propagation delay measured from point latch enable signal low-to-high transition point output high-to-low transition. Minimum time after negative transition latch enable signal that input signal must remain unchanged acquired held outputs. Minimum time that latch enable signal must high acquire input signal change. Minimum time before negative transition latch enable signal that input signal change must present acquired held outputs. Amount time required transition from high output measured points. Amount time required transition from high output measured points. Difference between input voltages
price, delivery, place orders, please contact Hittite Microwave Corporation: Alpha Road, Chelmsford, 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line www.hittite.com
HMC675LC3C
v03.1009
LATCHED COMPARATOR WITH RSCML OUTPUT STAGE
Absolute Maximum Ratings
COMPARATORS
Input Supply Voltage (Vcci GND) Output Supply Voltage (Vcco GND) Positive Supply Differential (Vcci Vcco) Input Voltage Differential Input Voltage Input Voltage, Latch Enable Applied Voltage (HYS) Maximum Input Current Output Current Junction Temperature Continuous Pdiss 85°C) (Derate 20.4 mW/°C above 85°C) Thermal Resistance (Rth) (Junction Lead) Storage Temperature Operating Temperature
-0.5V -0.5V -0.5V -0.5V Vcci +0.5V 125°C 0.816 °C/W -65°C +150°C -40°C +85°C
ELECTROSTATIC SENSITIVE DEVICE OBSERVE HANDLING PRECAUTIONS
Outline Drawing
NOTES:
PACKAGE BODY MATERIAL: ALUMINA LEAD GROUND PADDLE PLATING: 30-80 MICROINCHES GOLD OVER MICROINCHES MINIMUM NICKEL. DIMENSIONS INCHES [MILLIMETERS]. LEAD SPACING TOLERANCE NON-CUMULATIVE. PACKAGE WARP SHALL EXCEED 0.05mm DATUM -C6. GROUND LEADS MUST SOLDERED GROUND. PADDLE MUST SOLDERED Vee.
price, delivery, place orders, please contact Hittite Microwave Corporation: Alpha Road, Chelmsford, 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line www.hittite.com
HMC675LC3C
v03.1009
LATCHED COMPARATOR WITH RSCML OUTPUT STAGE
Descriptions
Number Function Description Termination resistor return Input. Non-Inverting analog input Inverting analog input Termination resistor return input Interface Schematic
COMPARATORS
Vcci
Positive supply voltage input stage.
Latch enable input pin, inverting side.
Latch enable input pin, non-inverting side.
Vcco
connected inside package. Connect package improved noise. Positive supply voltage output stage. Inverting output. logic analog voltage non-inverting input, INP, greater than analog voltage inverting input, INN, provided that comparator compare mode. Refer LE/LE descriptions (pins more information. Non-inverting output. logic high analog voltage non-inverting input, INP, greater than analog voltage inverting input, INN, provided that comparator compare mode. Refer LE/LE descriptions (pins more information. Hysteresis Control pin. This should left disconnected zero hysteresis. Connect with resistor desired amount hysteresis. Refer Figure page 6-34. determine correct sizing Rhys hysteresis control resistor. Negative power supply, -3V.
Return protection.
Package Base
Exposed paddle must connected Vee.
price, delivery, place orders, please contact Hittite Microwave Corporation: Alpha Road, Chelmsford, 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line www.hittite.com
HMC675LC3C
v03.1009
LATCHED COMPARATOR WITH RSCML OUTPUT STAGE
Evaluation
COMPARATORS
List Materials Evaluation 125932
Item JP1, Description Pos. Vertical 2.92 Jack Terminal Strip, Single Pos. Vertical Capacitor, 0402 Pkg. Capacitor, 0402 Pkg. Tantalum Pin, Swage Mount HMC675LC3C Comparator 125929 Evaluation
circuit board used final application should circuit design techniques. Signal lines should have impedance while package ground leads should connected directly ground plane similar that shown. sufficient number holes should used connect bottom ground planes order provide good grounding GHz. evaluation circuit board shown available from Hittite upon request.
Reference this number when ordering complete evaluation Circuit Board Material: Rogers 4350 Arlon 25FR
price, delivery, place orders, please contact Hittite Microwave Corporation: Alpha Road, Chelmsford, 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line www.hittite.com
HMC675LC3C
v03.1009
LATCHED COMPARATOR WITH RSCML OUTPUT STAGE
Application Circuit
COMPARATORS
price, delivery, place orders, please contact Hittite Microwave Corporation: Alpha Road, Chelmsford, 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line www.hittite.com

HMC675LC3C

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