LTC1444CS#PBF

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ULTRALOW POWER QUAD COMPARATORS WITH REFERENCE

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LTC1444CS#PBF

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Analog Devices

ULTRALOW POWER QUAD COMPARATORS WITH REFERENCE

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DocumentsDatasheet R312 Reliability Data

Specifications Pricing Series Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	LTC1444CS#PBF

CMRR, PSRR (Typ)	80 dB
CMRR, PSRR (Typ)	80 dB
Current - Output (Typ)	0.015 mA
Current - Quiescent (Max) [Max]	8.5 µA
Hysteresis	50 mV
Mounting Type	Surface Mount
Number of Elements	4
Operating Temperature [Max]	70 °C
Operating Temperature [Min]	0 °C
Output Type	TTL, Open-Drain, CMOS
Package / Case	16-SOIC
Package / Case [x]	0.154 in
Package / Case [y]	3.9 mm
Propagation Delay (Max) [Max]	12 µs
Supplier Device Package	16-SO
Type	with Voltage Reference
Voltage - Input Offset (Max)	10 mV
Voltage - Supply, Single/Dual (±) [Max]	5.5 V, 11 V
Voltage - Supply, Single/Dual (±) [Min]	1 V, 2 V

LTC1444 Series

Ultralow Power Quad Comparators with Reference

Part	Current - Output (Typ)	Mounting Type	Output Type	Type	Current - Quiescent (Max) [Max]	Voltage - Supply, Single/Dual (±) [Min]	Voltage - Supply, Single/Dual (±) [Max]	Supplier Device Package	Number of Elements	Hysteresis	Voltage - Input Offset (Max)	Package / Case	Package / Case	Package / Case	CMRR, PSRR (Typ)	CMRR, PSRR (Typ)	Propagation Delay (Max) [Max]	Operating Temperature [Max]	Operating Temperature [Min]	Package / Case [x]	Package / Case [y]
Analog Devices LTC1444IN#PBF	0.015 mA	Through Hole	CMOS Open-Drain TTL	with Voltage Reference	8.5 µA	1 V 2 V	5.5 V 11 V	16-PDIP	4	50 mV	10 mV	0.3 in	16-DIP	7.62 mm	80 dB	80 dB	12 µs	85 °C	-40 °C
Analog Devices LTC1444IDHD#TRPBF	0.015 mA	Surface Mount	CMOS Open-Drain TTL	with Voltage Reference	8.5 µA	1 V 2 V	5.5 V 11 V	16-DFN (5x4)	4	50 mV	10 mV		16-WFDFN Exposed Pad		80 dB	80 dB	12 µs	85 °C	-40 °C
Analog Devices LTC1444CDHD#TRPBF	0.015 mA	Surface Mount	CMOS Open-Drain TTL	with Voltage Reference	8.5 µA	1 V 2 V	5.5 V 11 V	16-DFN (5x4)	4	50 mV	10 mV		16-WFDFN Exposed Pad		80 dB	80 dB	12 µs	70 °C	0 °C
Analog Devices LTC1444CN#PBF	0.015 mA	Through Hole	CMOS Open-Drain TTL	with Voltage Reference	8.5 µA	1 V 2 V	5.5 V 11 V	16-PDIP	4	50 mV	10 mV	0.3 in	16-DIP	7.62 mm	80 dB	80 dB	12 µs	70 °C	0 °C
Analog Devices LTC1444CS#PBF	0.015 mA	Surface Mount	CMOS Open-Drain TTL	with Voltage Reference	8.5 µA	1 V 2 V	5.5 V 11 V	16-SO	4	50 mV	10 mV		16-SOIC		80 dB	80 dB	12 µs	70 °C	0 °C	0.154 in	3.9 mm

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	Tube	1	$ 6.23
		10	$ 4.30
		25	$ 3.80
		100	$ 3.68

Description

General part information

LTC1444 Series

The LTC1443/LTC1444/LTC1445 are ultralow power quad comparators with a built-in reference. The comparators feature less than 8.5μA supply current over temperature, an internal reference (1.182V ±1% for LTC1443 or 1.221V ±1% for LTC1444/LTC1445), programmable hysteresis (LTC1444/LTC1445) and TTL/CMOS output (LTC1443/ LTC1445) that sinks and sources current (open-drain output for LTC1444). The reference output can drive a bypass capacitor of up to 0.01μF without oscillation.The comparators operate from a single 2V to 11V supply or a dual ±1V to ±5.5V supply (LTC1443). Comparator hysteresis is easily programmable using two resistors and the HYST pin (LTC1444/LTC1445). Each comparator’s input operates from the negative supply to within 1.3V of the positive supply. The LTC1443/LTC1445 comparator output stage can continuously source up to 40mA. By eliminating the cross-conducting current that normally happens when the comparator changes logic states, power supply glitches are eliminated.The LTC1443/LTC1444/LTC1445 are available in the 16-pin SO, PDIP and DFN packages.ApplicationsBattery-Powered System MonitoringThreshold DetectorsWindow ComparatorsOscillator Circuits