CA0339M

Overview

The CA0339M is a quad voltage comparator manufactured by Intersil, featuring four independent comparator elements within a single integrated circuit. It operates with a maximum offset voltage of 9000 uV and exhibits a response time of 1300 ns. The device is housed in a 14-pin SOIC package (PDSO14). Designed for industrial, commercial, and military applications, it supports both single and dual power supply configurations. The common-mode input voltage range includes ground even when powered by a single supply, making it suitable for battery-powered systems due to low power consumption.

Feature Summary

• Contains four independent voltage comparators on a single monolithic substrate
• Supports operation with single or dual power supplies
• Common-mode input voltage range extends to ground during single-supply operation
• Low power consumption suitable for battery-operated applications

Applications

• Industrial control systems
• Commercial electronic equipment
• Military instrumentation

Procurement Notes

Verify the manufacturer designation as Intersil, now part of Renesas Electronics, to ensure authenticity. Confirm the package type is 14-SOIC and check for any specific suffix variations that may indicate temperature ranges or tape-and-reel packaging options. Cross-reference the part number against official Intersil/Renesas documentation to validate specifications such as offset voltage and response time before procurement.

Selection Notes

Select the CA0339M when multiple independent voltage comparisons are required in a compact form factor. Its ability to handle ground-referenced inputs on single supplies makes it distinct from comparators requiring negative rails. Ensure the application does not demand faster response times than 1300 ns or lower offset voltages than 9000 uV. Consider the 14-SOIC package constraints for PCB layout and thermal management in dense designs.

Part Context

The CA0339M belongs to the CA339 family of quad voltage comparators, which also includes variants like CA139, CA239, and LM339. These devices share similar functional architectures but may differ in electrical characteristics, temperature ranges, or package options. The CA0339M specifically denotes the commercial/industrial grade version offered by Intersil in a standard plastic small-outline package.

Replacement Considerations

Compatible substitutes include LM339D and other quad comparators from the same family. Verify pin compatibility and electrical parameter alignment, particularly offset voltage and response time, before substitution.