ICL8021CPA

Overview

The ICL8021CPA is a dual operational amplifier manufactured by Harris Corporation, belonging to the ICL7621 series. It features a CMOS architecture designed for low power consumption applications. The device provides dual rail-to-rail input and output capabilities, allowing operation with single or split power supplies. Key electrical characteristics include a wide supply voltage range, high input impedance, and low offset voltage drift over temperature. The component is housed in a standard DIP-8 package suitable for through-hole mounting.

Feature Summary

• Dual channel configuration within a single compact package
• CMOS technology enabling low quiescent current consumption
• Rail-to-rail input and output swing capability
• High input impedance reducing loading effects on signal sources

Applications

• Precision analog signal conditioning circuits
• Battery-powered instrumentation requiring low power draw
• Active filter designs utilizing single-supply operation
• Sensor interface amplification stages

Procurement Notes

Verify manufacturer authenticity as Harris Corporation assets were acquired by Analog Devices. Confirm package type and date code against original specifications. Check for obsolescence status since the part may be discontinued or superseded by newer equivalents. Ensure compatibility with existing PCB footprints and thermal requirements during integration.

Selection Notes

Select this component when dual op-amps with rail-to-rail performance are required in a low-power environment. Compare input bias current and offset voltage specifications against application needs. Consider package availability and lead times given potential discontinuation. Evaluate alternative CMOS op-amps if higher bandwidth or lower noise is necessary for specific signal paths.

Part Context

This component is part of the ICL7621 family of dual operational amplifiers known for their CMOS construction. The series was widely used in portable electronics and industrial controls before being integrated into larger product portfolios following corporate acquisitions. It represents a transition period in semiconductor manufacturing where legacy parts were maintained alongside newer technologies.

Replacement Considerations

Check for direct pin-compatible replacements from Analog Devices or other manufacturers offering modern CMOS dual op-amps. Verify that substitute components meet the same rail-to-rail input/output requirements and supply voltage ranges. Ensure mechanical footprint compatibility with existing DIP-8 layouts.