ICL7621DCSA-T

Overview

The ICL7621DCSA-T is a dual monolithic CMOS operational amplifier from the ICL761X–ICL764X family. It features fixed quiescent currents of 100µA per amplifier and operates on supply voltages ranging from ±1V to ±8V, or single supplies from 2V to 16V. The device provides an input bias current of 1pA typical, unity-gain bandwidth of 0.48MHz at this setting, and an output voltage swing within millivolts of the supply rails.

Feature Summary

• Monolithic CMOS design with ultra-low input bias current
• Fixed quiescent current settings for dual amplifiers
• Rail-to-rail output voltage swing capability
• Industry-standard pinout configuration

Applications

• Battery-powered instruments
• Low-leakage amplifiers
• Long-time constant integrators
• Picoammeters

Procurement Notes

Verify that the -T suffix indicates tape-and-reel packaging rather than tube delivery. Confirm the DC designation matches the required offset voltage specifications for your circuit. Ensure the component meets RoHS compliance requirements if applicable to your manufacturing standards.

Selection Notes

Select this part when low power consumption and high input impedance are critical. The dual configuration allows for cost-effective implementation in multi-channel signal conditioning circuits. Verify that the fixed 100µA quiescent current meets the system's thermal and power budget constraints.

Part Context

This component belongs to the ICL76XX series of general-purpose operational amplifiers manufactured by Analog Devices Inc./Maxim Integrated. The series includes single, dual, triple, and quad variants designed for low-power applications requiring high input impedance and wide supply voltage operation.

Replacement Considerations

Direct replacements include other members of the ICL7621 series such as ICL7621ACPA or ICL7621BCPA, provided they match the required temperature range and package type.