ICL7650SCBA-1Z

Overview

The ICL7650SCBA-1Z 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/us. The device guarantees a maximum input offset voltage of 5 uV and an input bias current of 10 pA. It operates within a supply voltage range of 2.25 V to 8 V for dual supplies or 4.5 V to 16 V for single supplies, consuming 3 mA of operating current. Each channel provides an output current capability of 30 mA. Key performance metrics include a common-mode rejection ratio of 140 dB and a power-supply rejection ratio of 120 dB. The component is housed in an SOIC-8 surface-mount package.

Feature Summary

• Super chopper-stabilized architecture virtually eliminates traditional chopper amplifier issues such as intermodulation effects and chopping spikes.
• Extremely low input offset voltage and drift ensure high precision stability across time and temperature variations.
• User-transparent CMOS circuitry simplifies design by requiring only two external capacitors for nulling input correction potentials.
• Clamp circuit prevents overload recovery problems, allowing the amplifier to function effectively as a comparator.

Applications

• Precision sensor signal conditioning
• High-impedance measurement systems
• Strain gauge amplification
• Thermocouple signal processing

Procurement Notes

Verify the specific suffix '-1Z' against the manufacturer's official datasheet to confirm RoHS compliance status and pinout configuration. Ensure the selected package variant matches the PCB footprint requirements for the SOIC-8 form factor. Cross-reference the ordering information with Renesas Electronics documentation to validate availability and lead times prior to finalizing procurement plans.

Selection Notes

Select this component when ultra-low offset voltage and minimal drift are critical system requirements. The super chopper stabilization technology makes it suitable for applications demanding high DC accuracy without the complexity of manual calibration. Consider the 2 MHz bandwidth and 2.5 V/us slew rate to ensure adequate speed for the intended signal frequencies while maintaining low power consumption characteristics.

Part Context

This part belongs to the ICL7650 series of super chopper-stabilized operational amplifiers. It serves as an improved direct replacement for the industry-standard ICL7650, offering enhanced specifications including lower input offset voltage, reduced input bias current, and a wider common-mode voltage range. The series is designed for applications where precision and stability are paramount over high-speed switching capabilities.

Replacement Considerations

The ICL7650S is documented as an improved direct replacement for the standard ICL7650. Verify pin compatibility and electrical parameter improvements when substituting legacy components. Ensure that the specific '-1Z' suffix requirements align with the target application's environmental and regulatory standards.