LM393PSR-P

Overview

The LM393PSR-P is a dual differential analog comparator manufactured by Texas Instruments, housed in an 8-pin SOIC surface-mount package. It operates on a single supply voltage ranging from 2 V to 30 V with a quiescent current of 2.5 mA. The device features a propagation delay of 1.3 µs and an open-collector output capable of sinking up to 20 mA. Input characteristics include a maximum input offset voltage of 5 mV and an input bias current of 250 nA at 5 V. It supports CMOS and TTL logic levels and functions within a temperature range of 0°C to +70°C.

Feature Summary

• Dual differential comparison architecture for signal processing
• Open-collector output compatible with various logic families
• Wide single-supply voltage operational range

Applications

• Fast response applications involving noisy or AC inputs
• General-purpose voltage monitoring circuits
• Threshold detection systems requiring low power consumption

Procurement Notes

Verify the specific suffix 'P' against the official Texas Instruments datasheet to confirm it denotes the standard commercial grade variant rather than a specialized military or extended temperature version. Ensure the ordering part number matches the required tape-and-reel packaging format specified in the manufacturer's documentation before finalizing procurement.

Selection Notes

Select this component when a dual-channel comparator with wide supply voltage tolerance is required. It is suitable for designs needing open-collector outputs that interface directly with digital logic without additional pull-up resistors for certain configurations. Consider the 1.3 µs propagation delay for timing-sensitive applications.

Part Context

This part belongs to the LM393 family of dual differential comparators. It shares functional similarities with the LM393DR and LM393PSR but may differ in specific manufacturing lot codes or minor parameter tolerances defined by the manufacturer. It serves as a general-purpose alternative to higher-speed comparator models in cost-sensitive designs.

Replacement Considerations

The LM393DR and LM393PSR are confirmed public substitutes offering identical pinouts and core electrical specifications. Verify that the replacement part meets the specific operating temperature range and output current requirements of the original design.