ICL7614ACSA

Overview

The ICL7614ACSA is a single-channel monolithic CMOS operational amplifier from the ICL761X–ICL764X family, manufactured by Analog Devices/Maxim Integrated. It features an externally compensated architecture with a typical input bias current of 1pA and a maximum supply voltage range of ±8V (16V total). The device operates within a commercial temperature range of 0°C to +70°C and utilizes an 8-pin Small Outline package.

Feature Summary

• Externally compensated design allowing bandwidth adjustment via external capacitor
• Ultra-low input bias current suitable for high-impedance signal sources
• Monolithic low-power CMOS construction
• Rail-to-rail output swing capability

Applications

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

Procurement Notes

Verify the specific 'ACSA' suffix against official manufacturer documentation to confirm the exact electrical grade and packaging specifications. Ensure the application circuit includes the required external compensation capacitor between the COMP and OUT pins as specified in the datasheet.

Selection Notes

Select this component when external frequency compensation is required to optimize bandwidth or slew rate for specific load conditions. Verify that the 0°C to +70°C operating temperature range aligns with the environmental constraints of the target system.

Part Context

This part belongs to the ICL761X–ICL764X series of ultra-low power CMOS operational amplifiers. Unlike internally compensated variants in the same family, the ICL7614 requires external compensation, offering flexibility in trade-offs between stability, bandwidth, and noise performance.

Replacement Considerations

Check for pin-compatible alternatives within the ICL761X family that offer internal compensation if external components are undesirable. Verify equivalent quiescent current settings and offset voltage specifications before substitution.

FAQ

How is the ICL7614 frequency compensated?

The ICL7614 is externally compensated by connecting a capacitor between the COMP and OUT pins. A value of 39pF ensures unity-gain stability.

What is the function of the IOSET pin on the ICL7614?

The IOSET pin allows for programmable quiescent current selection (10μA, 100μA, or 1000μA) to balance power consumption against bandwidth and slew rate.