AK2923T

Overview

The AK2923T is a dual zero-drift operational amplifier manufactured by Asahi Kasei Microdevices (AKM). It utilizes chopper stabilization technology to achieve ultra-low offset voltage and drift, ensuring high precision in signal amplification. The device operates on a single supply voltage ranging from 2.7V to 5.5V or dual supplies of ±1.35V to ±2.75V. It features a rail-to-rail output capability and is available in a compact 8-pin TSSOP package. Key electrical characteristics include a maximum offset voltage of 2µV and a maximum offset drift of 0.02µV/°C.

Feature Summary

• Chopper-stabilized architecture for near-zero DC offset and drift
• Rail-to-rail output swing for maximum dynamic range
• Low power consumption suitable for battery-operated systems
• Compact surface-mount packaging for space-constrained designs

Applications

• Precision sensor signal conditioning
• Medical instrumentation front-ends
• Industrial process control loops
• High-resolution data acquisition systems

Procurement Notes

Verify the specific suffix 'T' indicates tape-and-reel packaging when ordering. Confirm the manufacturer designation as Asahi Kasei Microdevices or AKM to ensure component authenticity. Check for RoHS compliance status if required for your manufacturing environment. Ensure the operating temperature range meets your application's environmental specifications.

Selection Notes

Select this component when ultra-low offset voltage and drift are critical requirements. Compare against standard op-amps if higher bandwidth is needed, as chopper amplifiers may have lower gain-bandwidth products. Consider the input common-mode voltage range relative to your supply rails. Evaluate power consumption constraints against the device's quiescent current specifications.

Part Context

This part belongs to the AK292x series of zero-drift operational amplifiers from AKM. It shares architectural similarities with the AK2920 and AK2921 but offers dual-channel configuration. The series is designed for applications requiring high DC accuracy without external trimming. It complements AKM's portfolio of precision analog signal processing components.

Replacement Considerations

Direct pin-compatible replacements may include other dual zero-drift amplifiers from manufacturers like Texas Instruments or Analog Devices. Verify that substitute parts meet the same offset voltage, drift, and supply voltage requirements. Ensure the replacement package matches the 8-pin TSSOP form factor for board compatibility.