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ADCMP670-1YUJZ-RL7 Datenblatt(PDF) 1 Page - Analog Devices |
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ADCMP670-1YUJZ-RL7 Datenblatt(HTML) 1 Page - Analog Devices |
1 / 16 page Dual Low Power 1.5% Comparator With 400 mV Reference ADCMP670 Rev. 0 Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibilityis assumedbyAnalogDevicesforitsuse,norforanyinfringements of patents or other rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 www.analog.com Fax: 781.461.3113 ©2007 Analog Devices, Inc. All rights reserved. FEATURES 400 mV ± 1.5% threshold Supply range: 1.7 V to 5.5 V Low quiescent current: 6.5 μA typical Input range includes ground Internal hysteresis: 8.9 mV typical Low input bias current: ±10 nA maximum Open-drain outputs Supports wire-AND connections Input polarities: one inverting and one noninverting Low profile (1 mm) TSOT package Drop-in replacement for the LT6700-1 APPLICATIONS Li-Ion monitoring Portable applications Hand-held instruments Window comparators LED/relay driving Optoisolator driving Control systems FUNCTIONAL BLOCK DIAGRAM +INA –INB OUTA OUTB VDD GND 400mV ADCMP670-1 Figure 1. GENERAL DESCRIPTION The ADCMP670 consists of two low power, high accuracy, comparator and reference circuits in a 6-lead TSOT package. The internal 400 mV reference provides the ability to monitor low voltage supplies. The device operates on a supply voltage from 1.7 V to 5.5 V and draws only 6.5 μA typical, making it suitable for low power system monitoring and portable applica- tions. Hysteresis is included in the comparators. The comparator outputs are open-drain and the output can be pulled up to any voltage up to 5.5 V. The output stage is guaranteed to sink greater than 5 mA over temperature. The ADCMP670 is currently available in one model, the ADCMP670-1. This model has one inverting input and one noninverting input, making it suitable for use as a window comparator. The device is suitable for portable, commercial, industrial, and automotive applications. 386 TEMPERATURE (°C) –40 –20 0 20 40 60 80 100 120 404 402 400 398 396 394 392 390 388 RISING INPUT FALLING INPUT 2B 2A 1B 1A TWO TYPICAL PARTS COMP A AND COMP B VDD = 5V Figure 2. Comparator Thresholds vs. Temperature |
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