ONLM2901DR2G

Overview

The LM2901DR2G is a quad independent precision voltage comparator designed to operate from a single power supply over a wide range of voltages from 1.5V to 30V. This device features four separate comparator elements in a single 14-SOIC package, providing an open-collector output stage that is compatible with TTL, DTL, and CMOS logic levels. It is characterized by low input bias current of 0.25uA and a maximum quiescent current of 2.5mA, making it suitable for battery-operated systems.

Why Choose This Part

This component offers high density with four comparators in a compact SOIC-14 footprint, significantly reducing PCB real estate requirements. Its wide supply range and ability to sense input signals near ground allow for versatile integration into both low-voltage digital and high-voltage analog systems. The open-collector output configuration provides design flexibility for wired-OR logic and level shifting applications.

Applications

Getting Started

For rapid prototyping, mount the SOIC-14 package to a standard 1.27mm pitch breakout board for use with breadboards. Ensure a pull-up resistor is connected between the output pin and the desired logic supply voltage, as the open-collector stage cannot drive a high signal independently. Bypass the VCC pin with a 0.1uF ceramic capacitor placed as close to the IC as possible to minimize switching noise.

LM2901 Family

Comparing specs that differ across variants. The current part is highlighted.