CS3014-FS

Overview

The CS3014-FS is a low-power, low-voltage precision dual operational amplifier manufactured by Cirrus Logic. It features rail-to-rail input and output capabilities, operating on supply voltages from 2.7 V to 5 V. Key electrical specifications include a typical input offset voltage of ±10 µV with a maximum drift of ±0.05 µV/°C. The device provides a typical open-loop voltage gain of 135 dB and an input noise voltage density of 22 nV/√Hz at 1 kHz. Supply current is typically 1.0 mA, with a slew rate of 0.25 V/µs.

Feature Summary

• Rail-to-rail input and output swing capability for maximizing dynamic range in low-voltage systems
• Chopper-stabilized architecture ensuring ultra-low input offset voltage and minimal drift over temperature
• Low power consumption suitable for battery-operated applications

Applications

• Thermocouple and thermopile signal amplification
• Load cell and bridge transducer amplifiers
• Precision instrumentation circuits
• Battery-powered measurement systems

Procurement Notes

Verify the specific suffix (FS) corresponds to the standard 8-lead SOIC package with leaded construction. Confirm the operating temperature range matches the -40 °C to +125 °C specification. Ensure compatibility with the required supply voltage range of 2.7 V to 5 V. Check for moisture sensitivity level requirements during storage and assembly processes.

Selection Notes

Select this component when high DC precision is required alongside low power constraints. The rail-to-rail inputs allow operation near ground or supply rails, while the chopper stabilization eliminates drift issues common in standard op-amps. Consider the 1.0 mA supply current against system budget limits and verify that the 0.25 V/µs slew rate meets signal bandwidth requirements.

Part Context

The CS3014 belongs to the CS3004 family of low-power precision amplifiers designed for low-voltage environments. It utilizes a chopper-stabilized topology to achieve exceptional DC accuracy. The device is available in multiple packages including SOIC and QFN variants, catering to different thermal and space constraints in portable and industrial electronics.

Replacement Considerations

CS3014-FSZ (Lead-free version of the same package)

FAQ

What is the maximum input offset drift for the CS3014?

The maximum average input offset drift is ±0.05 µV/°C.

Does the CS3014 support single-supply operation?

Yes, it operates with any supply voltage from 2.7 V to 5 V, supporting single-supply configurations.