ICL7642BCWE+T

Overview

The ICL7642BCWE+T is a quad CMOS operational amplifier manufactured by Analog Devices Inc./Maxim Integrated. It features four independent channels within a single package, designed for low-power applications. Key electrical specifications include a gain-bandwidth product of 44 kHz and a slew rate of 16 mV/us. The input offset voltage is specified at 5 mV, with an input bias current of 50 pA. The device operates on supply voltages ranging from a minimum of 1 V to a maximum of 8 V per rail (or 2 V to 16 V total). Quiescent current consumption is 15 uA per amplifier. Common-mode rejection ratio is 60 dB.

Feature Summary

• Quad configuration integrating four independent amplifiers in one package
• CMOS technology enabling ultra-low power consumption
• Rail-to-rail output capability for extended dynamic range
• High input impedance suitable for sensitive signal sources

Applications

• Battery-powered instrumentation systems
• Portable medical devices requiring low current draw
• Industrial sensor signal conditioning
• Data acquisition front-ends

Procurement Notes

Verify the specific suffix 'T' indicates tape-and-reel packaging if required by assembly equipment. Confirm the 'B' grade temperature range matches design requirements. Check manufacturer lifecycle status as obsolescence may affect long-term availability. Ensure RoHS compliance documentation aligns with regulatory needs. Validate pinout compatibility during PCB layout finalization.

Selection Notes

Select this component when multiple low-power amplification stages are needed in space-constrained designs. Compare against single-channel variants if only one or two amplifiers are utilized to reduce cost. Consider the 44 kHz bandwidth limit for high-speed signal processing tasks. Evaluate the 5 mV offset voltage against precision requirements for DC-coupled applications.

Part Context

This part belongs to the ICL764x family of zero-drift and low-power operational amplifiers. It shares architectural similarities with the ICL7641 but offers quad integration instead of dual. The device represents Maxim Integrated's CMOS op-amp lineage before the Analog Devices acquisition. It serves as a cost-effective solution for general-purpose analog signal processing where power efficiency is critical.

Replacement Considerations

Public confirmed substitute part numbers: None identified.