ICL7641BCJD

Overview

The ICL7641BCJD is a quad CMOS operational amplifier from the ICL761X–ICL764X family, manufactured by Analog Devices Inc./Maxim Integrated. It features four independent amplifiers in a single package with ultra-low input bias current of 1pA and low power consumption. The device operates from dual supplies ranging from ±1V to ±8V or single supplies from 2V to 16V. Key electrical parameters include a gain-bandwidth product of 44 kHz, a slew rate of 16 mV/µs, an input offset voltage of 5 mV, and a common-mode rejection ratio of 60 dB. It utilizes a PDIP-8 package.

Feature Summary

• Ultra-low input bias current of 1pA suitable for high-impedance circuits
• Low power operation with selectable quiescent currents per amplifier
• CMOS output stage capable of swinging within millivolts of supply rails

Applications

• Long time constant integrators
• Picoammeters
• Low droop rate sample/hold amplifiers

Procurement Notes

Verify component authenticity through authorized channels as this part may be discontinued. Confirm package type and temperature grade match design requirements. Check RoHS compliance status against specific manufacturing dates. Ensure supply chain stability due to potential obsolescence. Validate pinout compatibility if replacing existing designs.

Selection Notes

Select this component for applications requiring minimal input current draw and low power dissipation. Consider the trade-off between bandwidth and sensitivity given the 44 kHz gain-bandwidth product. Evaluate the need for quad configuration versus single-channel alternatives like the ICL7621. Assess thermal performance within the specified operating temperature range.

Part Context

This part belongs to the ICL761X–ICL764X series of monolithic CMOS op amps designed for precision analog signal processing. The family combines ultra-low input current with wide supply voltage flexibility. The 'BC' suffix typically denotes specific electrical parameter grades such as offset voltage and bias current limits compared to other variants in the series.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.