ICL7612DESA

Overview

The ICL7612DESA is a single-channel monolithic CMOS operational amplifier from the ICL761X–ICL764X family, manufactured by Analog Devices Inc./Maxim Integrated. It features an extended common-mode voltage range and operates on supply voltages ranging from ±1V to ±8V or single supplies from 2V to 16V. The device utilizes a pin-selectable quiescent current architecture with options of 10μA, 100μA, or 1000μA per amplifier. Key electrical characteristics include a typical input bias current of 1pA, a unity-gain bandwidth of 0.044MHz at the lowest current setting, and rail-to-rail output swing capability within millivolts of the supply rails.

Feature Summary

• Ultra-low input bias current of 1pA typical value for high-impedance source applications
• Pin-selectable quiescent currents allowing optimization between power consumption and performance
• Extended common-mode voltage range specific to the ICL7612 variant
• Rail-to-rail CMOS output swing capability approaching supply voltages

Applications

• Long time constant integrators
• Picoammeters
• Low droop rate sample/hold amplifiers
• pH meters
• Photodiode amplifiers

Procurement Notes

Verify the 'E' suffix indicates the -40°C to +85°C industrial temperature range and the 'SA' suffix denotes the 8-pin Small Outline package. Confirm RoHS compliance status if required by your manufacturing standards. Ensure the ordering code matches the exact channel count and offset specifications needed for your circuit design before finalizing procurement.

Selection Notes

Select this component when ultra-low input bias current and low power operation are critical requirements. The ICL7612 variant specifically provides an extended common-mode voltage range compared to other members of the family. Consider the trade-off between quiescent current settings and bandwidth/slew rate based on the application's speed requirements.

Part Context

This part belongs to the ICL761X–ICL764X family of monolithic CMOS operational amplifiers. The family combines ultra-low input current with low-power operation over a wide supply voltage range. The ICL7612 is a single-channel member distinguished by its extended common-mode voltage range capabilities.

Replacement Considerations

The datasheet lists the ICL7612DESA+ as a lead-free alternative within the same series. Verify that any substitute maintains the extended common-mode voltage range and package compatibility.