CA3195E

Overview

The CA3195E is a quad comparator integrated circuit manufactured by Harris Corporation. It features four independent high-speed comparators housed in a 14-pin plastic dual in-line package (PDIP). The device is designed for bipolar operation with a maximum input offset voltage of 9000 µV and a typical response time of 1300 ns. It operates within a standard industrial temperature range and supports single or split power supply configurations, making it suitable for precision analog signal processing tasks.

Feature Summary

• Quad configuration providing four independent high-speed comparison channels on a single chip
• High input impedance bipolar input stage ensuring minimal loading on source circuits
• Internal compensation mechanisms to maintain stable performance across varying temperatures
• Robust output stage capable of driving standard logic families directly

Applications

• Window detector circuits for voltage monitoring
• Fast ADC interfaces requiring rapid signal thresholding
• Precision level sensing in industrial control systems

Procurement Notes

Verify the manufacturer origin carefully as Harris Corporation assets were acquired by Renesas Electronics. Confirm the specific suffix 'E' denotes the correct temperature grade and package variant. Check for RoHS compliance status relative to the production era. Ensure the component is sourced from authorized distributors to avoid counterfeit parts given the age of the product line.

Selection Notes

Select this component when a quad comparator with moderate speed and low offset voltage is required in a DIP package. Compare against modern equivalents like the LM339 if surface mount packaging is preferred. Consider the input bias current and common-mode voltage range requirements of the specific application to ensure compatibility with the bipolar input structure.

Part Context

The CA3195E belongs to the CA319x series of quad comparators produced by Harris Semiconductor. This series was widely used in analog computing and instrumentation before being phased out or absorbed into other product lines following corporate acquisitions. It represents a legacy solution for multi-channel comparison tasks in older equipment designs.

Replacement Considerations

Direct pin-compatible replacements may include the LM339 or MC33168, though electrical characteristics such as offset voltage and speed differ. Verify that the substitute meets the specific voltage and current requirements of the original design.