LM193H

Overview

The LM193H is a dual low-power, low-offset voltage comparator manufactured by Texas Instruments. It features an 8-pin TO-99 metal can package and operates from a single supply of 2 V to 36 V or split supplies of ±1 V to ±18 V. The device draws 500 µA of operating current and provides a maximum input bias current of 0.1 µA. It supports CMOS and TTL output types with a response time of 1.3 µs. The unit functions within a temperature range of -55°C to 125°C.

Feature Summary

• Dual independent comparators designed for low power operation
• Low offset voltage characteristics for precision applications
• Compatible with CMOS and TTL logic families

Applications

• Precision sensing circuits
• Threshold detection systems
• Battery-powered instrumentation

Procurement Notes

Verify the specific suffix 'H' against the manufacturer's official datasheet to confirm the exact pinout, lead finish, and military or commercial grade specifications. Ensure the ordering information matches the required package style and environmental ratings before finalizing procurement.

Selection Notes

Select this component when a hermetically sealed metal package is required for harsh environments. The dual configuration reduces board space compared to single units. Verify that the 1.3 µs propagation delay meets system timing requirements and that the 36 V maximum supply voltage aligns with the design power rails.

Part Context

This part belongs to the LM193 family of dual comparators. It shares functional similarities with the LM293 and LM393 but utilizes a distinct metal can package. The family is characterized by low supply current and wide single-supply voltage operation capabilities.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.