Datasheet ADCMP361 (Analog Devices)

Single 0.275% Comparator and Reference with Dual Polarity Outputs Data Sheet ADCMP361 FEATURES FUNCTIONAL BLOCK DIAGRAM 400 mV ± 0.275% threshold VDD Supply range: 1.7 V to 5.5 V Low quiescent current: 6.5 µA typical ADCMP361 Input range includes ground IN OUT Internal hysteresis: 9.3 mV typical Low input bias current: ±5 nA maximum 400mV Dual open-drain outputs OUT Small SOT-23 package Qualified for automotive applications
001
GND
06496-
APPLICATIONS
Figure 1.
Li-Ion monitoring Threshold detectors Relay driving Optoisolator driving Industrial control systems Handheld instruments GENERAL DESCRIPTION
The ADCMP361 is a single low power, high accuracy compara- tor with a 400 mV reference in a 5-lead SOT-23 package. The
R1 4.7MΩ VDD ADCMP361 R3 1MΩ
internal 400 mV reference provides the ability to monitor low
IN
voltage supplies. The device operates on a supply voltage from
+ + 3V OUT Li-Ion
1.7 V to 5.5 V and only draws 6.5 µA typical, making it suitable
CELL R2 – 1MΩ
for low power system monitoring and portable applications.
OUT
Hysteresis is included in the comparators.
400mV C1 GND
There are dual open-drain outputs to enable the comparator
100nF
029 and reference circuit to be used in an inverting or noninverting 06496- configuration. The outputs can be pulled to any voltage up to a Figure 2. Typical Li-Ion Monitoring Application maximum of 5.5 V. The output stage is guaranteed to sink greater than 5 mA over temperature The device is suitable for portable, commercial, industrial, and
DISCHARGING
automotive applications.
VBATT CHARGING 2.280V 2.271V VOUT
030 06496- Figure 3. Li-Ion Monitoring Waveforms
Rev. B Document Feedback Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. Specifications subject to change without notice. No One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Tel: 781.329.4700 ©2007–2014 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. Technical Support www.analog.com
Document Outline Features Applications Functional Block Diagram General Description Table of Contents Revision History Specifications Absolute Maximum Ratings Thermal Characteristics ESD Caution Pin Configuration and Function Descriptions Typical Performance Characteristics Application Information Comparators and Internal Reference Power Supply Inputs Outputs Adding Hysteresis Outline Dimensions Ordering Guide Automative Products