A 5-nV/√Hz Chopper Negative-R Stabilization Preamplifier for Audio Applications

This paper presents a low-noise and low-power audio preamplifier. The proposed low-noise preamplifier employs a delay-time chopper stabilization (CHS) technique and a negative-R circuit, both in the auxiliary amplifier to cancel the non-idealities of the main amplifier. The proposed technique makes...

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Bibliographic Details

Published in:	Micromachines
Main Authors:	Jamel Nebhen, Khaled Alnowaiser, Stephane Meillere
Format:	Article
Language:	English
Published:	MDPI AG 2020-05-01
Subjects:	preamplifier chopper stabilization negative-R CMOS operational transconductance amplifier (OTA) 1/f noise
Online Access:	https://www.mdpi.com/2072-666X/11/5/478