ICL7611BCPA+

Overview

The ICL7611BCPA+ is a single-channel monolithic CMOS operational amplifier from the ICL761X family, manufactured by Analog Devices Inc./Maxim Integrated. It features an input offset voltage of 5mV and operates within a supply voltage range of ±1V to ±8V or 2V to 16V. The device offers ultra-low bias current of 1pA typical and programmable quiescent currents of 10µA, 100µA, or 1000µA via the IQ pin. It provides rail-to-rail output swing and includes offset null capability in an 8-pin Plastic DIP package.

Feature Summary

• Ultra-low input bias current for high-impedance source applications
• Programmable quiescent current selection for power-speed optimization
• Rail-to-rail output voltage swing capability
• Internal offset nulling terminals for precision adjustment

Applications

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

Procurement Notes

Verify component authenticity through authorized distributors. Confirm RoHS compliance status as indicated on official datasheets. Ensure the ordering suffix matches the required temperature range and packaging specifications. Check for obsolescence notices or lifecycle changes before finalizing procurement plans.

Selection Notes

Select this part for applications requiring minimal input bias current and low power consumption. The B-grade specification indicates a 5mV maximum input offset voltage suitable for general-purpose precision tasks. Consider the programmable IQ feature to balance bandwidth requirements against total system power budget constraints.

Part Context

This component belongs to the ICL761X–ICL764X family of monolithic CMOS op amps. The family combines ultra-low input current with low-power operation over a wide supply voltage range. The ICL7611 variant specifically denotes a single-channel configuration within this series.

Replacement Considerations

ICL7611BCPA