ICL7650SCBA-1T

Overview

The ICL7650SCBA-1T is a Super Chopper-Stabilized Operational Amplifier manufactured by Renesas Electronics Corporation. It features a single operational amplifier function housed in an 8-pin SOIC plastic package (MS-012AA). The device guarantees a maximum input offset voltage of 8µV and a maximum average bias current of 0.00002 µA. It provides a nominal common-mode rejection ratio of 140 dB and operates within a negative supply voltage range up to -9 V, with a typical supply of -5 V. The component supports operation up to a maximum temperature of 70 °C.

Feature Summary

• Super chopper-stabilized architecture ensures exceptionally low input offset voltage and extreme stability over time and temperature variations.
• Integrated clamp circuit prevents overload recovery problems and enables comparator functionality while minimizing chopping spikes at inputs and outputs.
• User-transparent CMOS circuitry virtually eliminates traditional chopper amplifier issues such as intermodulation effects and overrange lockup.

Applications

• Precision measurement systems requiring minimal drift
• High-gain instrumentation circuits
• Comparator applications utilizing integrated clamp protection

Procurement Notes

Verify the manufacturer designation on the component marking against Renesas Electronics Corporation records. Confirm the specific suffix indicates the tape-and-reel packaging format intended for automated assembly. Ensure the part number matches the exact electrical specifications for the commercial temperature range before integration into production designs.

Selection Notes

Select this component when ultra-low offset voltage and long-term stability are critical requirements. It serves as an improved direct replacement for the industry-standard ICL7650, offering enhanced performance metrics including lower input bias current and a wider common-mode voltage range. Verify that the 8-pin SOIC package fits the target PCB layout constraints.

Part Context

This device belongs to the ICL7650 series of super chopper-stabilized amplifiers. It represents an evolution of the classic ICL7650 design, incorporating modern CMOS technology to reduce power consumption and improve signal integrity. The series is recognized for its ability to maintain precision in demanding analog signal processing environments without external nulling adjustments.

Replacement Considerations

The ICL7650SCBA-1T is documented as a direct replacement for the industry-standard ICL7650 and other second-source parts. Verify pin compatibility and package dimensions when substituting legacy components in existing designs.