LM393ADE4

Overview

The LM393ADE4 is a dual differential voltage comparator manufactured by Texas Instruments. It features open-collector outputs compatible with CMOS and TTL logic families. The device operates on a single supply voltage ranging from 2V to 36V, or dual supplies of ±1V to ±18V. Key electrical specifications include a maximum input offset voltage of 2mV at 30V, a maximum input bias current of 0.25µA at 5V, and a typical static supply current of 2.5mA. It supports rail-to-rail output switching.

Feature Summary

• Dual differential input configuration for precise voltage comparison
• Open-collector output structure enabling wired-AND connections
• Wide single-supply operating voltage range from 2V to 36V
• Compatible with standard digital logic families including CMOS and TTL

Applications

• General-purpose analog signal comparison circuits
• Over-voltage and under-voltage detection systems
• Window comparator designs
• Temperature sensing threshold monitoring

Procurement Notes

Verify the specific suffix 'E4' indicates lead-free packaging compliance per RoHS standards. Confirm the package type corresponds to SOIC-8 as indicated by the 'AD' prefix in related variants. Ensure the source document explicitly lists this exact part number rather than generic family members. Check for obsolescence notices associated with the LM393 family.

Selection Notes

Select this component when dual independent comparators are required within a single integrated circuit. The open-collector output allows flexibility in interfacing with various logic levels without additional pull-up resistors if internal options exist. Consider the wide supply voltage range for applications requiring operation across varying power conditions. Verify thermal performance requirements against the specified operating temperature range.

Part Context

This device belongs to the LMx93/LM2903 series of dual differential voltage comparers. These components are designed for single-supply operation where the common-mode input voltage includes ground. The series provides a cost-effective solution for basic voltage monitoring tasks compared to operational amplifiers configured as comparators.

Replacement Considerations

• LM393ADR
• LM393ADG4