ICL7642BCWE

Overview

The ICL7642BCWE is a quad monolithic CMOS operational amplifier from the ICL761X–ICL764X family. It features four amplifiers in a 16-pin Wide SO package with a commercial temperature range of 0°C to +70°C. The device operates on supply voltages ranging from ±1V to ±8V or single supplies from 2V to 16V. Key electrical characteristics include a typical input bias current of 1pA, an input offset voltage of 5mV, and a unity-gain bandwidth of 0.044MHz at the lowest quiescent current setting.

Feature Summary

• Ultra-low input bias current for high-impedance source applications
• Wide supply voltage operation capability
• Rail-to-rail output swing performance
• Monolithic low-power CMOS architecture

Applications

• Long-time constant integrators
• Picoammeters
• Low-leakage amplifiers
• Sample/hold amplifiers

Procurement Notes

Verify the specific suffix 'WE' corresponds to the 16-pin Wide SO package configuration. Confirm that the 'B' designation matches the required 5mV input offset voltage specification. Ensure the component meets the commercial operating temperature range requirements for the intended application environment.

Selection Notes

Select this part when multiple low-bias channels are required in a compact surface-mount footprint. Consider the fixed quiescent current nature of the quad variant compared to programmable single/dual versions. Evaluate if the 0.044MHz bandwidth is sufficient for the target signal frequencies.

Part Context

This component belongs to the ICL761X–ICL764X series of general-purpose CMOS op amps. The '42' designation indicates a quad configuration within this family. It shares architectural similarities with other members like the ICL7641 but provides four independent amplifier circuits in a single integrated circuit package.

Replacement Considerations

Check for pin-compatible alternatives within the same ICL76XX family. Verify that substitute parts maintain the 16-pin Wide SO package dimensions and the specific B-grade offset voltage tolerances.