ICL7621DCSA+T

Overview

The ICL7621DCSA+T is a dual-channel monolithic CMOS operational amplifier from the ICL761X–ICL764X family, manufactured by Analog Devices/Maxim Integrated. It features ultra-low input bias current of 1pA typical and low-power operation with a supply voltage range of ±1V to ±8V or single supplies from 2V to 16V. The device utilizes an 8-pin Small Outline (SO) package and operates within a commercial temperature range of 0°C to +70°C.

Feature Summary

• Ultra-low input bias current ensures optimum performance with very high source impedances
• Monolithic low-power CMOS design supports wide supply voltage ranges
• CMOS outputs swing to within millivolts of the supply voltages

Applications

• Long time constant integrators
• Picoammeters
• Low droop rate sample/hold amplifiers
• pH meters and photodiode amplifiers

Procurement Notes

Verify the specific ordering suffix against official manufacturer documentation to confirm package type and temperature rating. Confirm RoHS compliance status as indicated in the datasheet. Ensure the component matches the intended pinout for dual-channel configurations before integration into circuit designs.

Selection Notes

Select this component for applications requiring minimal input bias current and low power consumption. Verify that the required bandwidth and slew rate align with the fixed quiescent current settings inherent to the dual-channel architecture. Ensure the operating environment remains within the specified commercial temperature limits.

Part Context

This part belongs to the ICL761X–ICL764X series of single, dual, triple, and quad operational amplifiers. The family is characterized by its ability to combine ultra-low input current with low-power operation across a wide supply voltage range, making it suitable for precision analog signal processing tasks.

Replacement Considerations

Check for pin-compatible alternatives within the same ICL76xx family or other manufacturers offering similar ultra-low bias current specifications. Verify that any substitute maintains the required supply voltage range and package dimensions.