CS3001-IS

Overview

The CS3001-IS is a precision low-voltage operational amplifier designed for the amplification of low-level signals. It features a maximum input offset voltage of 10 µV and a maximum drift of 0.05 µV/°C. The device operates on total supply voltages ranging from 2.7 V to 6.7 V, with a slew rate of 5 V/µs. Input voltage noise density is 6 nV/√Hz at 0.5 Hz, with an integrated noise of 125 nVp-p over the 0.1 to 10 Hz band. The -1/f corner frequency is located at 0.08 Hz. Open-loop voltage gain typically reaches 300 dB, with a minimum of 200 dB.

Feature Summary

• Achieves excellent offset stability and super-high open-loop gain suitable for high closed-loop gain applications
• Provides rail-to-rail output swing capability within the specified supply range
• Exhibits excellent common-mode rejection ratio (CMRR) and power-supply rejection ratio (PSRR)

Applications

• Thermocouple and thermopile signal amplification
• Load cell and bridge transducer amplification
• Precision instrumentation circuits
• Battery-powered systems requiring low voltage operation

Procurement Notes

Verify the specific suffix designation against official Cirrus Logic documentation to confirm package type and temperature grade. Confirm availability status as distribution channels may list obsolete or discontinued variants. Ensure the selected component matches the required electrical specifications for the target application environment.

Selection Notes

Select this component when designing circuits that demand ultra-low offset voltage and minimal drift over temperature variations. The low noise profile makes it appropriate for sensor interfaces where signal integrity is critical. Verify that the supply voltage constraints align with the system's power architecture before integration.

Part Context

This part belongs to the Cirrus Logic CS300x series of precision amplifiers. The series includes single-channel and dual-channel variants optimized for low-voltage operation. These devices are engineered to provide high performance in portable and battery-operated environments while maintaining accuracy comparable to higher voltage industrial amplifiers.

Replacement Considerations

Consult official manufacturer substitution guides for verified equivalents. Generic op-amps may not match the specific offset drift or noise characteristics required for precision applications.