LTC1443IS - Linear Technology

Manufacturer Part Number

LTC1443IS

Manufacturer

Linear Technology

Introduction

The LTC1443IS is a quad high-speed precision comparator integrated circuit (IC) from Linear Technology. It is designed for a wide range of applications that require precise voltage comparison and switching functions.

Product Features and Performance

4 independent high-speed precision comparators

Wide supply voltage range: 2V to 11V single supply, or ±1V to ±5.5V dual supply

Low quiescent current: 8.5μA maximum

Fast propagation delay: 12μs typical

High common-mode rejection ratio (CMRR) and power supply rejection ratio (PSRR): 80dB typical

50mV of hysteresis for noise immunity

Capable of sinking up to 15μA at the output

Product Advantages

Precise voltage comparison with low offset voltage of 10mV maximum

Wide operating temperature range: -40°C to 85°C

Small footprint 16-SOIC package for efficient board space utilization

Versatile design suitable for a variety of applications

Key Technical Parameters

Manufacturer Part Number: LTC1443IS

Package: 16-SOIC (0.154", 3.90mm Width)

Output Type: CMOS, Open-Drain, TTL

Mounting Type: Surface Mount

Operating Temperature: -40°C to 85°C

Quiescent Current (Max): 8.5μA

Number of Elements: 4

Input Offset Voltage (Max): 10mV @ 5V

Propagation Delay (Max): 12μs (Typ)

CMRR, PSRR (Typ): 80dB PSRR

Supply Voltage: 2V to 11V (Single), ±1V to ±5.5V (Dual)

Hysteresis: 50mV

Output Current (Typ): 15μA @ 5V

Quality and Safety Features

RoHS non-compliant

Compatibility

The LTC1443IS is a standard comparator IC that can be used in a wide range of electronic applications.

Application Areas

The LTC1443IS is suitable for various applications that require precise voltage comparison and switching, such as:

Threshold detection

Zero-crossing detection

Waveform shaping

Battery charging/discharging monitoring

Sensor signal conditioning

Product Lifecycle

The LTC1443IS is an active product in Linear Technology's portfolio. Replacement or upgrade options may be available, but details should be confirmed with the manufacturer.

Several Key Reasons to Choose This Product

Precise voltage comparison with low offset voltage

Wide operating voltage and temperature range

Low quiescent current for power-efficient designs

Fast propagation delay and high CMRR/PSRR for reliable performance

Small footprint 16-SOIC package for space-constrained applications

Versatile design suitable for a variety of applications