ICL7631BCPE

Overview

The ICL7631BCPE is a triple CMOS operational amplifier manufactured by Analog Devices Inc./Maxim Integrated. It features a gain-bandwidth product of 44 kHz and a slew rate of 16 mV/us. The input offset voltage is specified at 10 mV, with an input bias current of 50 pA. Operating from a single supply between 1 V and 2 V or dual supplies up to 8 V, it draws 15 uA per channel. Common-mode rejection ratio is 60 dB, and input voltage noise density is 100 nV/sqrt Hz. It is housed in a 16-PDIP package for through-hole mounting.

Feature Summary

• Triple-channel CMOS architecture designed for low power consumption applications
• Rail-to-rail output swing capability for maximum dynamic range
• Low input bias current suitable for high-impedance sensor interfaces

Applications

• Battery-powered instrumentation systems requiring low quiescent current
• Signal conditioning circuits for passive sensors
• Portable medical devices utilizing single-supply operation

Procurement Notes

Verify the specific suffix 'BCPE' against official datasheets to confirm temperature grade and packaging specifications. Confirm RoHS compliance status as legacy parts may vary. Check for obsolescence notices from Analog Devices prior to finalizing procurement plans. Ensure the supplier provides valid traceability documentation for quality assurance purposes.

Selection Notes

Select this component when triple amplification is required within a single package to save board space. Consider the 44 kHz bandwidth limit for slow-moving signal applications. Evaluate the 10 mV offset voltage against system accuracy requirements. Compare power consumption benefits against higher-speed alternatives if bandwidth constraints are not critical.

Part Context

This device belongs to the ICL7631 series of low-power CMOS operational amplifiers. It serves as a multi-channel solution for applications where power efficiency and single-supply operation are prioritized over high-speed performance. The triple configuration reduces component count compared to using individual single amplifiers.

Replacement Considerations

Direct replacement options include the ICL7631ECPE variant, which shares the same functional pinout and electrical characteristics but may differ in temperature rating or manufacturing lot specifications. Verify package compatibility before substitution.