Product Summary

The LTC1444IS#TR is an ultralow power quad comparator with a built-in reference. The comparator features less than 8.5mA 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 0.01mF without oscillation. The applications of the LTC1444IS#TR include Battery-Powered System Monitoring, Threshold Detectors, Window Comparators, Oscillator Circuits.

Parametrics

LTC1444IS#TR absolute maximum ratings: (1)Voltage: V+ to V –, V + to GND, GND to V-: 12V to –0.3V; (2)IN+, IN–, HYST: (V + + 0.3V) to (V- -0.3V); (3)REF: (V + + 0.3V) to (V- -0.3V); (4)OUT (LTC1443): (V+ + 0.3V) to (GND - 0.3V); (5)OUT (LTC1444/LTC1445): (V+ + 0.3V) to (V- -0.3V); (6)Storage Temperature Range: -65℃ to 150℃; (7)Lead Temperature Range (Soldering, 10 sec): 300℃; (8)Current: IN+, IN–, HYST: 20mA; REF: 20mA; OUT: 50mA; (9)OUT Short Circuit Duration (V+ ≤ 5.5V): Continuous; (10)Power Dissipation: 500mW.

Features

LTC1444IS#TR features: (1)Ultralow Quiescent Current: 8.5mA Max; (2)Wide Supply Range: Single: 2V to 11V; Dual: ±1V to ±5.5V; (3)Input Voltage Range Includes the Negative Supply; (4)Reference Output Drives 0.01mF Capacitor; (5)Adjustable Hysteresis (LTC1444/LTC1445); (6)TTL/CMOS Compatible Outputs; (7)Propagation Delay: 12ms with 10mV Overdrive; (8)No Crowbar Current; (9)40mA Continuous Source Current; (10)Pin Compatible Upgrades for MAX924 (LTC1443).

Diagrams

LTC1444IS#TR block diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
LTC1444IS#TR
LTC1444IS#TR


IC COMP QUAD LP 1.221VREF 16SOIC

Data Sheet

0-2500: $1.86
LTC1444IS#TRPBF
LTC1444IS#TRPBF


IC COMP W/REF LOWPWR QUAD 16SOIC

Data Sheet

0-2500: $1.86