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Comparator相关技术文章LTC1540-Nanopower Comparator w
LTC1540描述 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 commercial temperature range, a 1.182V ±2% reference, programmable 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.
The comparator operates from a single 2V to 11V supply or a dual ±1V to ±5.5V supply. Comparator hysteresis is easily programmed by using two resistors and the HYST pin. Each comparator’s input operates from the negative supply to within 1.3V of the positive supply. The comparator output stage can continuously source up to 40mA. By eliminating the cross-conducting current that normally occur when the comparator changes logic states, power supply glitches are eliminated.
The LTC1540 is available in the 8-pin MSOP and SO packages. For space limited applications, the LTC1540 is available in a 3mm x 3mm low profile (0.8mm) dual finepitch leadless package (DFN).
LTC1540特点 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 Typical Application
LTC1540封装 MSOP-8, SO-8, DFN-8
LTC1540应用 Battery-Powered System Monitoring Threshold Detectors Window Comparators Oscillator Circuits
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