ICL7612DCSA

Overview

The ICL7612DCSA is a single-channel monolithic CMOS operational amplifier from the ICL761X–ICL764X family. It features an extended common-mode voltage range, pin-selectable quiescent currents of 10µA, 100µA, or 1000µA, and operates on supplies from ±1V to ±8V (or 2V to 16V single). Key electrical parameters include a typical input bias current of 1pA, unity-gain bandwidth of 44kHz at 10µA IQ, and a maximum supply voltage of 18V. The device is housed in an 8-pin SO package with a commercial operating temperature range of 0°C to +70°C.

Feature Summary

• Monolithic CMOS design providing ultra-low input bias current for high-impedance source applications
• Extended common-mode voltage range specific to the ICL7612 variant
• Pin-selectable quiescent current configuration for power-speed optimization
• Rail-to-rail output swing capability approaching supply voltages

Applications

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

Procurement Notes

Verify the exact ordering suffix against official manufacturer documentation to confirm package type and temperature grade. Confirm RoHS compliance status as it varies by manufacturing batch and region. Check current production status directly with Analog Devices or authorized distributors, as availability may be limited for specific variants within this product line.

Selection Notes

Select the ICL7612DCSA when an extended common-mode voltage range is required compared to standard ICL7611 devices. Choose the 'D' suffix for the specified commercial temperature range and 'S' for the SO package. Ensure the selected quiescent current setting meets the necessary bandwidth and slew rate requirements for the target application frequency.

Part Context

This component belongs to the ICL761X–ICL764X family of low-power CMOS operational amplifiers manufactured by Analog Devices / Maxim Integrated. The family includes single, dual, triple, and quad configurations. The ICL7612 specifically offers extended common-mode input voltage capabilities not present in other members like the ICL7611.

Replacement Considerations

The ICL7611 serves as a functional substitute if the extended common-mode voltage range of the ICL7612 is not required. Verify that the replacement part matches the specific package dimensions and pinout compatibility before integration into existing designs.

FAQ

How is the quiescent current configured on the ICL7612?

The quiescent current is set by connecting the IQ pin to V+ for 10µA, between V- + 0.8V and V+ - 0.8V for 100µA, or to V- for 1000µA.

What distinguishes the ICL7612 from the ICL7611?

The ICL7612 features an extended common-mode voltage range, whereas the ICL7611 has a standard common-mode range.