LT6700/LT6700HV Micropower, Low Voltage, Dual Comparator with 400mV Reference FEATURESDESCRIPTION n Internal 400mV Reference The LT®6700/LT6700HV combine two micropower, low n Total Threshold Error: ±1.25% Max at 25°C voltage comparators with a 400mV reference in a 6-lead n Inputs and Outputs Operate to 36V SOT-23 or tiny DFN package. Operating with supplies from n Wide Supply Range: 1.4V to 18V 1.4V up to 18V, these devices draw only 6.5µA, making n Specified for –55°C to 125°C Temperature Range them ideal for low voltage system monitoring. Hysteresis n Low Quiescent Current: 6.5µA Typ at 5V is included in the comparators, easing design requirements n Internal Hysteresis: 6.5mV Typ to insure stable output operation. n Low Input Bias Current: ±10nA Max The comparators each have one input available externally; n Over-The-Top® Input also Includes Ground the other inputs are connected internally to the reference. n Open-Collector Outputs Allow Level Translation The comparator outputs are open collector and the output n Choice of Input Polarities: LT6700-1/LT6700-2/ load can be referred to any voltage up to 18V (36V for LT6700-3/LT6700HV-1/LT6700HV-2/LT6700HV-3 LT6700HV), independent of supply voltage. The output n Available in Low Profile (1mm) SOT-23 (ThinSOT™) stage sinking capability is guaranteed to be greater than and 2mm × 3mm DFN Packages 5mA over temperature. APPLICATIONS The three versions of this part differ by the polar- ity of the available comparator inputs. The LT6700-1/ n Battery-Powered System Monitoring LT6700HV-1 has one inverting input and one noninvert- n Threshold Detectors ing input, making it suitable for use as a window com- n Window Comparators parator. The LT6700-2/LT6700HV-2 has two inverting n Relay Driving inputs and the LT6700-3/LT6700HV-3 has two nonin- n Industrial Control Systems verting inputs. All versions are offered in commercial, n Handheld Instruments industrial and automotive temperature ranges. n Automotive Monitor and Controls L, LT, LTC, LTM, Linear Technology, the Linear logo and Over-The-Top are registered trademarks and ThinSOT and PowerPath are trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. TYPICAL APPLICATIONMicropower Battery MonitorComparator Thresholds VBATT 1.4V (MIN) vs Temperature 3V (NOM) 1M LT6700-3 1M 1M 406 #1A #2A #1B #2B + COMP B 404 RISING INPUT 0.1µF VBATT > 1.6V 402 – 63.4k 400 + TAGE (mV) ALKALINE 398 AA CELLS + V V R = 400mV S REFERENCE 396 FALLING INPUT THRESHOLD VOL 394 – COMP A TWO TYPICAL PARTS 392 COMP A AND B VBATT > 2V VS = 5V + 390 MONITOR CONSUMES ~10µA –60 –40 –20 0 20 40 60 80 100 120 261k HYSTERESIS IS APPROXIMATELY TEMPERATURE (°C) 2% OF TRIP VOLTAGE 6700123 TA02 6700123 TA01 6700123fh For more information www.linear.com/LT6700 1 Document Outline Features Description Applications Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Pin Functions Typical Performance Characteristics Applications Information Package Information Revision History Typical Applications Related Parts
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