A 55 V, Six-Channel Chopper and Auto-Zeroing Amplifier with 6.2 nV/<inline-formula><math display="inline"><semantics><mrow><msqrt><mi mathvariant="bold">Hz</mi></msqrt></mrow></semantics></math></inline-formula> Noise and −128 dB Total Harmonic Distortion

In this paper, a high-voltage chopper and ping-pong auto-zeroing operational amplifier was designed for industrial and automotive applications. Based on chopper stabilization, the proposed circuit introduces a novel chopper switch control signal that varies with the input common-mode voltage. This s...

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Bibliographic Details
Main Authors: Guolong Li, Guoqing Weng, Zhifeng Chen, Chenying Zhang, Shifan Wu, Chengying Chen
Format: Article
Language:English
Published: MDPI AG 2025-06-01
Series:Eng
Subjects:
Online Access:https://www.mdpi.com/2673-4117/6/6/126
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