ICL7650SCBA-1

Overview

The ICL7650SCBA-1 is a single-channel CMOS operational amplifier featuring super chopper-stabilized architecture. It provides an input offset voltage of up to 8 µV and a common-mode rejection ratio of 140 dB. The device operates with supply voltages ranging from -9 V to +9 V, delivering a slew rate of 2.5 V/µs and an output current capability of 30 mA per channel.

Feature Summary

• Super chopper-stabilized circuitry virtually eliminates traditional chopping spikes and intermodulation effects.
• Extremely low input offset voltage ensures exceptional stability over time and temperature variations.
• Integrated clamp circuit prevents overload recovery problems and allows comparator use.
• Wide common-mode voltage range supports operation across broad signal conditions.

Applications

• Precision instrumentation requiring minimal drift
• Low-level sensor signal amplification
• High-impedance measurement circuits

Procurement Notes

Verify the specific suffix against manufacturer documentation to confirm package type and temperature grade. Ensure compatibility with required supply voltage ranges and external capacitor specifications for optimal chopper stabilization performance.

Selection Notes

Select this component for applications demanding ultra-low offset voltage and high common-mode rejection. Consider the SOIC-8 package constraints regarding external clock and clamp pin availability compared to larger packages.

Part Context

Part of the ICL7650 series, this device serves as an improved direct replacement for industry-standard chopper amplifiers. It offers enhanced input offset voltage, lower bias current, and wider common-mode range while maintaining user-transparent operation.

Replacement Considerations

• ICL7650S
• ICL7650SCPDZ

FAQ

Does the SOIC-8 package include external clock and clamp pins?

No, the SOIC-8 package does not provide provisions for external clock selection or output clamping, unlike the DIP-14 variant.

What external components are required for operation?

Two external capacitors are necessary to store correcting potentials on the amplifier nulling inputs for the chopper stabilization function.