Ultralow Power Single/Dual Comparator

The LTC1441 is an ultralow power dual comparator, featuring less than 5.7µA supply current over temperature. The TTL/CMOS outputs both sink and source current.

The comparators operate from a single 2V to 11V supply or a dual ±1V to ±5.5V supply. 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 happens when the comparator changes logic states, the power supply glitches are eliminated.

The LTC1441 is available in an 8-pin PDIP and SO package.

Applications

* Battery-Powered System Monitoring

* Threshold Detectors

* Window Comparators

* Oscillator Circuits

* Ultralow Quiescent Current: 3.5µA Typ

* Reference Output Drives 0.01µF Capacitor

* Wide Supply Range:

* Single: 2V to 11V

* Dual: ±1V to ±5.5V

* Input Voltage Range Includes the Negative Supply

* TTL/CMOS Compatible Outputs

* 12µs Propagation Delay with 10mV Overdrive

* No Crowbar Current

* 40mA Continuous Source Current

* Pin Compatible Upgrades for MAX922

* 8-pin DIP and SO-8 Package