LTC1441 Series

Ultralow Power Single/Dual Comparator

Catalog

Ultralow Power Single/Dual Comparator

Part	Current - Output (Typ)	Mounting Type	Type	Number of Elements	Output Type	Current - Quiescent (Max) [Max]	Propagation Delay (Max) [Max]	Voltage - Input Offset (Max)	Voltage - Supply, Single/Dual (±) [Min]	Voltage - Supply, Single/Dual (±) [Max]	CMRR, PSRR (Typ)	CMRR, PSRR (Typ)	Package / Case	Package / Case [y]	Package / Case [x]	Operating Temperature [Max]	Operating Temperature [Min]	Supplier Device Package
Analog Devices LTC1441IS8#PBF	40 mA	Surface Mount	General Purpose	2	CMOS TTL	5.7 µA	15 µs	10 mV	1 V 2 V	5.5 V 11 V	80 dB	80 dB	8-SOIC	3.9 mm	0.154 in	85 °C	-40 °C	8-SO

Catalog

Ultralow Power Single/Dual Comparator

Key Features

• Ultralow Quiescent Current: 3.5µA Typ

• Reference Output Drives 0.01µF Capacitor

• Wide Supply Range:Single: 2V to 11VDual: ±1V to ±5.5V

• 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

Description

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.ApplicationsBattery-Powered System MonitoringThreshold DetectorsWindow ComparatorsOscillator Circuits