TILM393DR

Overview

The LM393DR is a widely used dual differential comparator designed to operate from a single power supply over a wide range of voltages from 2V to 30V. It features two independent voltage comparators with open-collector outputs, allowing for easy interfacing with various logic levels and driving loads up to 20mA. This component is a staple in power management and sensor interfacing due to its low cost and predictable performance.

Why Choose This Part

The LM393DR offers excellent flexibility with its open-collector output, enabling wired-OR connections and level shifting between different logic families. Its ability to operate with a common-mode input voltage range that includes ground makes it ideal for single-supply applications. Additionally, the low quiescent current of approximately 0.6mA to 2.5mA and the industry-standard SOIC-8 footprint make it a go-to choice for space-constrained, cost-sensitive designs.

Applications

Getting Started

To integrate the LM393DR, ensure a pull-up resistor is connected to the open-collector output pin to define the 'high' logic level. Decouple the VCC pin with a 0.1uF ceramic capacitor close to the device to minimize switching noise. For rapid prototyping, this part is compatible with standard SOIC-8 to DIP adapter boards for use on breadboards.

LM393 Family

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