ICL7612DESA-T

Overview

The ICL7612DESA-T 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 pin-selectable quiescent currents of 10μA, 100μA, or 1000μA per amplifier. Key electrical characteristics include a typical input bias current of 1pA, a unity-gain bandwidth of 0.044 MHz at 10μA IQ, and a slew rate of 0.016 V/µs at 10μA IQ. It is housed in an 8-pin Small Outline (SO) package with an operating temperature range of -40°C to +85°C.

Feature Summary

• Ultra-low input bias current of 1pA typical for high-impedance source applications
• Pin-selectable quiescent current settings allowing optimization between power consumption and performance
• Extended common-mode voltage range capability specific to the ICL7612 variant
• CMOS output stage capable of swinging within millivolts of the supply rails

Applications

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

Procurement Notes

Verify that the ordering suffix '-T' corresponds to the tape-and-reel packaging configuration as specified in the manufacturer's official documentation. Confirm the 'E' series designation indicates the -40°C to +85°C industrial temperature range. Ensure the component matches the 8-pin SO package outline dimensions before integration into the PCB layout.

Selection Notes

Select this component when ultra-low input bias current is critical for maintaining signal integrity with high source impedances. The ICL7612 variant provides an extended common-mode voltage range compared to other members of the ICL761X family. Consider the trade-off between quiescent current settings and required bandwidth/slew rate for the specific application constraints.

Part Context

This part belongs to the ICL761X–ICL764X family of low-power CMOS operational amplifiers. The family includes single, dual, triple, and quad configurations. The ICL7612 specifically denotes a single-channel amplifier with extended common-mode voltage range capabilities, distinguishing it from standard variants like the ICL7611.

Replacement Considerations

The datasheet identifies the ICL7612DESA+ as a compatible lead-free alternative within the same product line.