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LTC1841 Series

Ultralow Power Dual Comparators with Reference

Manufacturer: Analog Devices

Catalog

Ultralow Power Dual Comparators with Reference

Key Features

• Ultralow Quiescent Current: 3.5µA Typ
• Open-Drain Outputs Typically Sink Greater Than 20mA
• Wide Supply Range: (LTC1841)Single: 2V to 11VDual: ±1V to ±5.5V
• Single: 2V to 11V
• Dual: ±1V to ±5.5V
• Input Voltage Range Includes the Negative Supply
• 12µs Propagation Delay with 10mV Overdrive
• No Current Spike When Switching

Description

AI
The LTC1841 is an ultralow power dual comparator featuring less than 5.7µA supply current over temperature, a 1.182V ±1% reference, programmable hysteresis and open-drain outputs that sink current. The reference output can drive a bypass capacitor of up to 0.01µF without oscillation.The LTC1841 operates from a single 2V to 11V supply or a dual ±1V to ±5.5V supply. The comparator inputs operate from the negative supply to within 1.3V of the positive supply. The comparator outputs can typically sink greater than 20mA. By eliminating the cross-conduction current that normally happens when the comparators change logic states, power supply glitches are eliminated.The LTC1841 are available in an SO-8 package.ApplicationsBattery-Powered System MonitoringThreshold DetectorsWindow ComparatorsOscillator Circuits