ICL7612DCPA

Overview

The ICL7612DCPA is a single-channel monolithic CMOS operational amplifier from the ICL761X–ICL764X family. It features an extended common-mode voltage range, allowing inputs to swing below the negative supply rail. The device operates on dual supplies from ±1V to ±8V or single supplies from 2V to 16V. It offers pin-selectable quiescent currents of 10μA, 100μA, or 1000μA per amplifier. The unit utilizes an 8-pin Plastic DIP package and supports operation within a commercial temperature range of 0°C to +70°C.

Feature Summary

• Monolithic CMOS design providing ultra-low input bias current for high source impedance applications
• Extended common-mode voltage range capability extending beyond the negative supply rail
• Pin-selectable quiescent current settings enabling optimization between power consumption and bandwidth
• Rail-to-rail output swing capability approaching supply voltages with minimal load

Applications

• Long-time constant integrators requiring low leakage
• Picoammeters and low-current measurement circuits
• Low-frequency active filters
• Battery-powered instruments
• Low droop rate sample/hold amplifiers

Procurement Notes

Verify the specific suffix 'DCPA' against official manufacturer documentation to confirm the exact electrical grade (D series) and plastic DIP packaging. Confirm that the component meets the required operating temperature range of 0°C to +70°C for your application environment. Ensure compatibility with the intended supply voltage configuration before integration.

Selection Notes

Select this component when applications demand extremely low input bias current combined with an extended common-mode voltage range that includes potentials below the negative supply rail. The programmable quiescent current feature allows designers to balance power efficiency against slew rate and bandwidth requirements. Verify that the 8-pin PDIP package fits the available board space and routing constraints.

Part Context

This part belongs to the ICL761X–ICL764X family of low-power CMOS operational amplifiers manufactured by Analog Devices / Maxim Integrated. The family encompasses single, dual, triple, and quad configurations. The ICL7612 specifically denotes the single-amplifier variant within this lineup, distinguished by its unique combination of low noise current and wide supply voltage tolerance.

Replacement Considerations

ICL7612ACPA

FAQ

How is the quiescent current configured on the ICL7612?

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

What is the maximum supply voltage for this device?

The total supply voltage (V+ to V-) can reach up to +18V, supporting dual supplies from ±1V to ±8V or single supplies from 2V to 16V.