ICL7612DESA+

Overview

The ICL7612DESA+ is a single-channel monolithic CMOS operational amplifier from the ICL761X–ICL764X family, housed in an 8-pin SO package. 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. Key electrical parameters include a unity-gain bandwidth of 0.044 MHz at 10µA quiescent current, a typical input bias current of 1pA, and a maximum input offset voltage of 15mV. The device supports programmable quiescent currents of 10µA, 100µA, or 1000µA.

Feature Summary

• Monolithic low-power CMOS design with ultra-low input bias current
• Extended common-mode voltage range for the ICL7612 variant
• Pin-selectable quiescent currents for optimized performance

Applications

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

Procurement Notes

Verify that the ordering suffix 'SA' corresponds to the 8-pin Small Outline package and the '+' indicates RoHS compliance as per the manufacturer's documentation. Confirm the temperature grade 'E' matches the required -40°C to +85°C operating range for your specific application environment before finalizing procurement.

Selection Notes

Select this component when high input impedance and low power consumption are critical. The ICL7612 specifically requires consideration for its extended common-mode voltage range compared to other family members. Ensure the chosen quiescent current setting provides sufficient bandwidth and slew rate for the target signal frequencies while maintaining low power dissipation.

Part Context

This part belongs to the ICL761X–ICL764X series of general-purpose operational amplifiers manufactured by Analog Devices Inc./Maxim Integrated. The series combines ultra-low input current with wide supply voltage operation, making it suitable for precision analog applications requiring minimal power draw and high source impedance compatibility.

Replacement Considerations

The datasheet lists the ICL7612ACPA, ICL7612BCPA, and ICL7612DCPA as pin-compatible alternatives within the same family. Verify that the temperature range and offset voltage specifications of the substitute part meet the system requirements.