ICL7632ECSE

Overview

The ICL7632ECSE is a monolithic CMOS operational amplifier from the ICL761X–ICL764X family, manufactured by Analog Devices Inc./Maxim Integrated. It features an ultra-low input bias current of 1pA typical and operates over a wide supply voltage range of ±1V to ±8V or single supplies from 2V to 16V. The device utilizes a 16-pin Slim SO package with an operating temperature range of 0°C to +70°C. Key electrical parameters include a maximum input offset voltage of 20mV, a unity-gain bandwidth of 0.044MHz at 10µA quiescent current, and an input resistance of 10^12Ω.

Feature Summary

• Ultra-low input bias current of 1pA typical for high-impedance source applications
• Wide supply voltage operation from ±1V to ±8V or single supplies from 2V to 16V
• CMOS outputs swing to within millivolts of the supply voltages
• Monolithic low-power design with industry-standard pinouts

Applications

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

Procurement Notes

Verify that the ordering suffix 'E' corresponds to the specified 0°C to +70°C temperature range and 'SE' indicates the 16-pin Slim Small Outline package. Confirm the manufacturer designation matches Analog Devices Inc. or Maxim Integrated as per the official datasheet documentation. Ensure the component is sourced from authorized channels to guarantee authenticity and compliance with the stated absolute maximum ratings.

Selection Notes

Select this component when extremely low input bias currents are critical for maintaining signal integrity in high-impedance circuits. The device is suitable for applications requiring rail-to-rail output swing capability and wide supply voltage flexibility. Consider the specific quiescent current requirements and bandwidth limitations inherent to the CMOS architecture when designing the circuit topology.

Part Context

This part belongs to the ICL761X–ICL764X family of monolithic CMOS operational amplifiers. The family combines ultra-low input current with low-power operation. The ICL7632 specifically denotes a triple amplifier configuration within this series, designed for applications where input bias and offset currents are critical factors.

Replacement Considerations

The datasheet identifies the ICL76XX series as having pin-for-pin second sources. Verify compatibility with other manufacturers offering equivalent CMOS op-amps in the same family before substitution.

FAQ

How is the quiescent current controlled in the ICL7632?

The ICL7632 is a triple amplifier which has fixed quiescent current settings, unlike the single and triple amplifiers in the family that allow pin-selectable quiescent currents.

What is the input impedance of the ICL7632?

The input impedance is 10^12 Ω, ensuring optimum performance with very high source impedances.