ICL7650SCPDZ

Overview

The ICL7650SCPDZ is a single-channel super chopper-stabilized operational amplifier manufactured by Renesas Electronics. It features a gain-bandwidth product of 2 MHz and a slew rate of 2.5 V/µs. The device guarantees a maximum input offset voltage of 700 µV and an input bias current of 4 pA. Operating from a supply voltage range of 4.5 V to 16 V, it consumes 2 mA of supply current. Key performance metrics include a common-mode rejection ratio (CMRR) of 120 dB and a power supply rejection ratio (PSRR) of 120 dB. It is housed in a 14-pin DIP package and operates within a commercial temperature range of 0°C to 70°C.

Feature Summary

• Utilizes CMOS chopper-stabilized circuitry to virtually eliminate traditional chopping spikes and intermodulation effects.
• Provides exceptionally low input offset voltage with minimal long-term and temperature drift.
• Includes a unity-gain compensated clamp circuit to prevent overload recovery problems.
• Offers an extremely wide common-mode voltage range for flexible signal handling.

Applications

• Precision low-level signal processing
• High-impedance sensor interfaces
• Strain gauge amplification
• Thermocouple signal conditioning

Procurement Notes

Verify the specific suffix 'DZ' against the manufacturer's official datasheet to confirm RoHS compliance and lead-free status. Ensure the 14-pin DIP package matches the target PCB footprint. Confirm that the commercial temperature range meets the application requirements. Cross-reference the part number with authorized distributors to avoid counterfeit components.

Selection Notes

Select this component when ultra-low offset voltage and drift are critical, surpassing standard precision op-amps. The chopper-stabilized architecture makes it suitable for DC applications where thermal drift would otherwise degrade accuracy. Consider the 14-pin package size constraints compared to smaller surface-mount alternatives in the same family.

Part Context

This device belongs to the ICL7650 series of super chopper-stabilized amplifiers. It serves as an improved direct replacement for the industry-standard ICL7650, offering enhanced specifications such as lower input bias current and wider common-mode voltage range while maintaining the core benefits of dynamic zeroing technology.

Replacement Considerations

The ICL7650S is the base equivalent model. Verify pin compatibility if substituting with other manufacturers' chopper-stabilized amplifiers.

FAQ

How does the ICL7650SCPDZ handle overload conditions?

It includes a unity-gain compensated clamp circuit designed to minimize overload recovery time and prevent overrange lockup.

What external components are required for operation?

Two external capacitors are necessary to store correcting potentials on the nulling inputs; the internal clock oscillator requires no additional timing components.