LTC1843 Series

Ultralow Power Dual Comparators with Reference

Manufacturer: Analog Devices Inc./Maxim Integrated

Catalog

Ultralow Power Dual Comparators with Reference

Part	Number of Elements	Propagation Delay (Max) [Max]	Voltage - Supply, Single/Dual (±) [Min]	Voltage - Supply, Single/Dual (±) [Max]	Hysteresis	Output Type	Supplier Device Package	CMRR, PSRR (Typ)	Current - Quiescent (Max) [Max]	Voltage - Input Offset (Max) [Max]	Mounting Type	Package / Case	Package / Case	Package / Case	Type	Operating Temperature [Max]	Operating Temperature [Min]
Analog Devices Inc./Maxim Integrated LTC1843CS8#PBF	2	12 µs	-1.25 V 2.5 V	5.5 V 11 V	50 mV	Open-Drain	8-SO	80 dB 80 dB	5.7 µA	10 mV	Surface Mount	0.154 in	8-SOIC	3.9 mm	with Voltage Reference	70 °C	0 °C
Analog Devices Inc./Maxim Integrated LTC1843IS8#TRPBF	2	12 µs	-1.25 V 2.5 V	5.5 V 11 V	50 mV	Open-Drain	8-SO	80 dB 80 dB	5.7 µA	10 mV	Surface Mount	0.154 in	8-SOIC	3.9 mm	with Voltage Reference	85 °C	-40 C
Analog Devices Inc./Maxim Integrated LTC1843CS8#TRPBF	2	12 µs	-1.25 V 2.5 V	5.5 V 11 V	50 mV	Open-Drain	8-SO	80 dB 80 dB	5.7 µA	10 mV	Surface Mount	0.154 in	8-SOIC	3.9 mm	with Voltage Reference	70 °C	0 °C
Analog Devices Inc./Maxim Integrated LTC1843IS8#PBF	2	12 µs	-1.25 V 2.5 V	5.5 V 11 V	50 mV	Open-Drain	8-SO	80 dB 80 dB	5.7 µA	10 mV	Surface Mount	0.154 in	8-SOIC	3.9 mm	with Voltage Reference	85 °C	-40 C

Catalog

Ultralow Power Dual Comparators with Reference

Description

The LTC1843 is an ultralow power dual comparator with a built-in reference. The comparators feature 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 LTC1843 operate from a single 2.5V to 11V supply or a dual ±1.25V to ±5.5V supply. Hysteresis is easily programmed by using two resistors and the HYST pin. 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 LTC1843 is available in an SO-8 package.ApplicationsBattery-Powered System MonitoringThreshold DetectorsWindow ComparatorsOscillator Circuits