ICL7641CCPD+

Overview

The ICL7641CCPD+ is a quad monolithic CMOS operational amplifier from the ICL761X–ICL764X family, manufactured by Analog Devices Inc. (formerly Maxim Integrated). It features four independent amplifiers in a 16-pin Wide Small Outline package with an operating 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, a unity-gain bandwidth of 0.044MHz at 10µA quiescent current, and a maximum input offset voltage of 10mV.

Feature Summary

• Monolithic low-power CMOS design combining ultra-low input current with wide supply voltage operation
• CMOS outputs swing to within millivolts of the supply rails for maximum dynamic range
• Industry-standard pinouts facilitate direct replacement in existing designs

Applications

• Long-time constant integrators
• Low-leakage amplifiers
• Picoammeters
• Low droop rate sample/hold amplifiers
• Battery-powered instruments

Procurement Notes

Verify that the component matches the specific 'C' series commercial temperature rating (0°C to +70°C) and the 'PD' 16-pin plastic package designation. Confirm the manufacturer origin as Analog Devices Inc. or Maxim Integrated to ensure compliance with the original datasheet specifications. Check for RoHS compliance status if required by local regulations.

Selection Notes

Select this part when multiple low-power channels are required in a compact footprint. The quad configuration reduces board space compared to using individual single amplifiers. Ensure the application does not require programmable quiescent current, as the quad variant has fixed internal settings. Verify that the 0.044MHz bandwidth meets the signal processing requirements.

Part Context

This component belongs to the ICL76XX family of general-purpose operational amplifiers known for high input impedance and low power consumption. The 'CC' suffix indicates the commercial temperature grade and 10mV offset voltage specification, while 'PD' denotes the 16-lead plastic dual in-line package format used for through-hole mounting.

Replacement Considerations

Pin-for-pin second sources exist within the same ICL761X–ICL764X family. Verify that any substitute maintains the 16-pin Wide SOIC physical dimensions and the specific C-series electrical tolerances for offset voltage and temperature range.