ICL7641ECWE

Overview

The ICL7641ECWE is a quad monolithic CMOS operational amplifier manufactured by Analog Devices Inc./Maxim Integrated. It features four independent amplifiers in a 16-pin Wide SO package with an operating temperature range of 0°C to +70°C. The device supports supply voltages from ±1V to ±8V or single supplies from 2V to 16V. Key electrical parameters include a unity-gain bandwidth of 0.044 MHz, a typical input bias current of 1pA, and a maximum input offset voltage of 20mV.

Feature Summary

• Monolithic low-power CMOS design
• Ultra-low input bias current
• Rail-to-rail output swing capability

Applications

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

Procurement Notes

Verify the specific suffix 'E' for the commercial temperature range (0°C to +70°C) and 'WE' for the 16-pin Wide SO package against the official datasheet. Confirm RoHS compliance status as manufacturing processes may vary. Check for obsolescence notices or product change notifications prior to finalizing procurement plans.

Selection Notes

Select this component when ultra-low input bias current and high input impedance are required. The quad configuration allows multiple channels within a single package. Ensure the application does not require external frequency compensation, as this model is internally compensated for stability.

Part Context

This part belongs to the ICL761X–ICL764X family of single, dual, triple, and quad operational amplifiers. The family is characterized by pin-selectable quiescent currents in single/triple versions, though the quad version has fixed settings. It serves as a general-purpose low-power solution for precision analog signal processing.

Replacement Considerations

ICL7641BCWE+

FAQ

Is the ICL7641ECWE externally compensated?

No, the ICL7641ECWE is internally compensated for unity-gain operation.

What is the input resistance of the ICL7641ECWE?

The input resistance is typically 10^12 Ω.