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LM2903PWR

TILM2903PWR

Texas Instruments
Comparator Standard (General Purpose) Open-Collector, Rail-to-Rail 8-TSSOP
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Overview

The LM2903PWR is a dual independent precision voltage comparator designed to operate from a single power supply over a wide range of voltages from 2V to 36V. It features an open-collector output stage that is compatible with TTL, MOS, and CMOS logic levels, making it a versatile choice for basic level detection and signal conditioning.

Why Choose This Part

The device offers a wide supply range and a common-mode input voltage range that includes ground, allowing for direct sensing near 0V even in single-supply configurations. Its low output saturation voltage and 20mA typical output current capability provide reliable interfacing with digital logic and small relays.

Applications

Limit Comparators
Monitoring signal levels against a reference voltage to trigger alarms or system shutdowns.
Zero-Crossing Detectors
Identifying when an AC signal crosses the 0V threshold for timing or synchronization circuits.
Voltage Window Detectors
Using both comparator elements to determine if a signal is within a specific voltage range.
Oscillators
Configuring the device with external RC networks to create square wave generators.

Key Specifications

Type Standard (General Purpose)
Output Type Open-Collector, Rail-to-Rail
Mounting Type Surface Mount
Package / Case 8-TSSOP (0.173", 4.40mm Width)
Number of Elements 2
Operating Temperature -40degC ~ 125degC
Current - Output (Typ) 20mA
Supplier Device Package 8-TSSOP
Current - Quiescent (Max) 2.5mA
Current - Input Bias (Max) 0.25uA @ 5V
Voltage - Input Offset (Max) 7mV @ 30V
Voltage - Supply, Single/Dual (+/-) 2V ~ 36V, +/-1V ~ 18V

Getting Started

When designing with the LM2903PWR, ensure a pull-up resistor is connected to the open-collector output to establish the high-level logic voltage. For rapid prototyping, this TSSOP-8 package is compatible with standard SMT-to-DIP adapter boards for use with breadboards or perfboards.

Also Consider

LM2903BIPWR TITexas Instruments - A next-generation version featuring lower power consumption and improved ESD performance.

Categories

Analog ICs > Comparators