ICL7642BCWE+

Overview

The ICL7642BCWE+ is a quad monolithic CMOS operational amplifier from the ICL761X–ICL764X family, manufactured by Analog Devices Inc./Maxim Integrated. It features four amplifiers in a 16-pin Wide SO package with an operating temperature range of 0°C to +70°C. The device offers ultra-low input bias current and low power consumption over a wide supply voltage range.

Feature Summary

• Ultra-low input bias current for high-impedance source applications
• Low-power operation suitable for battery-powered instruments
• CMOS outputs swing to within millivolts of supply voltages

Applications

• Long-time constant integrators
• Picoammeters
• Low-frequency active filters
• Low-leakage amplifiers

Procurement Notes

Verify the specific suffix 'WE+' against official manufacturer documentation to confirm pinout compatibility and RoHS compliance status. Confirm that the 0°C to +70°C temperature grade matches the application requirements. Check for obsolescence notices or lifecycle changes directly from the manufacturer before finalizing procurement plans.

Selection Notes

Select this component when multiple low-bias channels are required in a single package. Ensure the fixed quiescent current meets the bandwidth needs, as the quad configuration does not support programmable current settings like the single or triple variants. Verify that the 16-pin Wide SO footprint fits the PCB layout constraints.

Part Context

This part belongs to the ICL761X–ICL764X series of monolithic CMOS op amps designed for ultra-low input current and low-power operation. The 'B' designation indicates a typical input offset voltage of 5mV at +25°C. The 'C' indicates the commercial temperature range of 0°C to +70°C.

Replacement Considerations

Check for direct pin-for-pin second sources listed in the official datasheet. Verify that any substitute maintains the same quad channel count, 16-pin Wide SO package, and 0°C to +70°C temperature rating.