LM393PE3

Overview

The LM393PE3 is a dual differential comparator manufactured by Texas Instruments, housed in an 8-pin PDIP package. It operates on a single supply voltage ranging from 2 V to 30 V or dual supplies up to ±15 V. The device features two independent channels with open-collector outputs compatible with CMOS and TTL logic families. Key electrical specifications include a typical response time of 1.3 µs, a maximum input offset voltage of 5 mV, and a quiescent current of 2.5 mA. It functions within a commercial temperature range of 0°C to +70°C.

Feature Summary

• Dual-channel differential comparison capability
• Open-collector output structure for logic compatibility
• Low power consumption design
• Wide single or split power supply operation

Applications

• Over/under voltage detection circuits
• Temperature sensing systems
• Peak voltage detection applications

Procurement Notes

Verify the component marking against the official Texas Instruments datasheet for the LM393P series to confirm authenticity. Ensure the package type matches the specified PDIP-8 configuration. Check for RoHS compliance documentation as indicated by the E3 suffix. Confirm that the supplier provides traceability data consistent with original manufacturer standards.

Selection Notes

Select this component when a low-cost, general-purpose dual comparator is required for standard voltage monitoring tasks. It is suitable for designs needing open-collector outputs to interface directly with digital logic without additional pull-up resistors if internal ones are preferred. Consider thermal performance if operating near the upper limit of the commercial temperature range.

Part Context

This part belongs to the LM393 family of dual comparators, widely used in industrial and consumer electronics. It serves as a fundamental building block for analog signal processing where fast switching between high and low states is necessary based on input voltage differences.

Replacement Considerations

LM393DR: Surface mount alternative with identical electrical characteristics. LM393N: Through-hole DIP variant with similar pinout and performance specs.