ADCMP343

www.DataSheet4U.com Preliminary Technical Data FEATURES Dual Comparators with 400mV Reference and programmable Hysteresis ADCMP341/ADCMP343 FUNCTIONAL BLOCK DIAGRAM VINA VS Low Quiescent Current: 6.5µA Typ Supply Range: 1.7V to 5.5V 400mV Reference ±0.8% Accuracy Over Temperature Input Range Includes Ground User programmable Hysteresis via resistor string Low Input Bias Current: ±10nA Max Open drain outputs with 40mA Typical Sink Current Supports Wired-AND Connections Input Polarities: ADCMP341 noninverting ADCMP343 inverting Small SOT-23 Package ADCMP341 INA_U MUX 400mV VINB OUTA INA_L APPLICATIONS Battery-Powered System Monitoring Threshold Detectors Relay Driving Optoisolator Driving Handheld Instruments VINA INB_U MUX GND VS OUTB INB_L GENERAL DESCRIPTION The ADCMP341/ADCMP343 combine two low power, low voltage comparators with a 400mV reference in the 5-lead SOT-23 package. Operating within a supply range of 1.7V to 5.5V, the devices only draw 6.5µA typical, making them ideal for low voltage system monitoring and portable applications. Hysteresis is determined using three resistors in a string configuration with the upper and lower tap points connected to the INA_U and INA_L pins of each comparator respectively. The state of the comparators output internally selects which pin is connected to the comparator inputs. So a change of state in the comparator output will result in one of the inputs being switched in to the comparator and the other being switched out. ...