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LM393DR2G

ONLM393DR2G

onsemi
Comparator Standard (General Purpose) Open-Collector, Rail-to-Rail 8-SOIC
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Overview

The LM393DR2G 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. This general-purpose component features an open-collector output, allowing for easy level shifting and wired-AND logic configurations in mixed-signal environments.

Why Choose This Part

This device offers high versatility with a wide supply range and low quiescent current of 0.4mA typical at 5V. Its open-collector output stage provides flexibility for driving loads up to 36V, and the input common-mode voltage range includes ground, simplifying single-supply design.

Applications

Limit Comparators
Used in monitoring circuits to trigger an output when a signal exceeds or falls below a specific reference voltage.
Level Shifters
The open-collector output facilitates interfacing between different logic families, such as converting 5V CMOS to 12V or 24V industrial logic.
Zero Crossing Detectors
Effective for detecting when an AC signal crosses the ground reference in power monitoring or timing applications.
Simple Oscillators
Can be configured with minimal external passive components to create square wave generators or pulse-width modulation (PWM) circuits.

Key Specifications

Type Standard (General Purpose)
Output Type Open-Collector, Rail-to-Rail
Mounting Type Surface Mount
Package / Case 8-SOIC (0.154", 3.90mm Width)
Number of Elements 2
Operating Temperature 0degC ~ 70degC
Current - Output (Typ) 16mA @ 5V
Supplier Device Package 8-SOIC
Current - Quiescent (Max) 2.5mA
Current - Input Bias (Max) 0.25uA @ 5V
Voltage - Input Offset (Max) 5mV @ 30V
Voltage - Supply, Single/Dual (+/-) 2V ~ 36V, +/-1V ~ 18V

Getting Started

To evaluate this part, use a standard SOIC-8 to DIP adapter for breadboarding or incorporate it directly into a PCB layout. Ensure a pull-up resistor is connected to the open-collector output to establish the desired high-level logic voltage. Bypass the supply pins with a 0.1uF ceramic capacitor near the IC to minimize noise.

Also Consider

LM2903DR2G ONonsemi - Offers an extended industrial temperature range of -40 to +125 degrees Celsius for more demanding environments.
TLV3201AIDBVR TITexas Instruments - A high-speed alternative with push-pull outputs and rail-to-rail input capability for low-voltage applications.

Categories

Sensors Displays & Optoelectronics