DESCRIPTIO U
●The LTC ®1540 is an ultralow power, single comparator with built-in reference. The comparator’s features include less than 0.6µA supply current over the commer cial temperature range, a 1.182V ±2% reference, pro
●grammable hysteresis and TTL/CMOS outputs that sink and source current. The reference output can drive a
●bypass capacitor of up to 0.01µF without oscillation.
●FEATURES
●■ Ultralow Quiescent Current: 0.3µA Typ
●■ Reference Output Drives 0.01µF Capacitor
●■ Adjustable Hysteresis
●■ Available in 3mm x 3mm x 0.8mm DFN Package
●■ Wide Supply Range: 2V to 11V
●■ Input Voltage Range Includes the Negative Supply
●■ Reference Output Sources Up to 1mA
●■ TTL/CMOS Compatible Outputs
●■ 60µs Propagation Delay with 10mV Overdrive
●■ No Crowbar Current
●■ 40mA Continuous Source Current
●■ Pin Compatible with LTC1440, MAX921, MAX931
●APPLICATIONS
●■ Battery-Powered System Monitoring
●■ Threshold Detectors
●■ Window Comparators
●■ Oscillator Circuits
