Nisshinbo Micro Devices Unveils MUSES8921: A High-Fidelity J-FET Audio Op-Amp

Nisshinbo Micro Devices has launched the MUSES8921, a J-FET input, dual operational amplifier designed specifically for high-quality audio applications.

This new device is aimed at home, professional, portable, and car audio systems, serving as the next-generation J-FET model in the MUSES series. It focuses on reproducing the original sound signal with remarkable clarity, ambience, and dynamic precision.

Key Features and Specifications

MUSES8921 op amp features

Ultra-Low Noise: 8.0 nV/√Hz at 1 kHz — delivering crystal-clear sound with minimal interference.

Low Distortion: Total harmonic distortion (THD) of 0.0004% at 1 kHz ensures transparent signal amplification.

High Slew Rate: 25 V/µs, enabling accurate handling of fast, dynamic audio signals.

Wide Operating Voltage Range: ±3.5 V to ±17 V — suitable for diverse audio circuit designs.

Package Options: Available in EMP-8-AN and DFN4035-8-GR packages for compact and portable applications.

Applications

  • High-end home audio systems
  • Professional sound equipment
  • Portable and car audio amplifiers
  • Aftermarket sound upgrades

Building on the success of the MUSES8920/A, the new MUSES8921 refines its predecessor’s performance, setting a new benchmark for audiophile-grade J-FET op-amps.

Datasheet: https://www.nisshinbo-microdevices.co.jp/en/pdf/datasheet/MUSES8921_E.pdf

Akhil Satheesh

Akhil Satheesh

Akhil Satheesh is an electronics expert and the Founder and CEO of Soldering Mind. He specializes in designing innovative electronic circuits and custom, high-performance PCB layouts. Every project he shares on solderingmind.com is rigorously bench-tested to ensure accuracy for makers and hobbyists alike.

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