Paper Title:
A Capacitor-Free CMOS Low-Noise, Low-Dropout Regulator for Capacitive Micro-Machined Accelerometer Application
  Abstract

A capacitor-free CMOS low-noise, low-dropout (LDO) regulator for Micro-accelerometer is presented. Noise performance of the regulator is studied from a theoretical point of view and a chopper stabilized error amplifier is designed to minimize output noise. By adopting pole-zero frequency compensation technique, the proposed LDO regulator, which is independent of an off-chip capacitor, provides high closed-loop stability when the load current is switched by micro-accelerometer. The proposed LDO is designed and fabricated on a 2μm CMOS process. From the simulation results, it shows that the line regulation is 3.5mV/V and the load regulation is 0.33mV/mA when the load current changes from 0 to 30 mA. The experimental results show that the output noise of the regulator is less than 180nV/sqrt(Hz) at low frequency

  Info
Periodical
Edited by
Xiaohao Wang
Pages
97-102
DOI
10.4028/www.scientific.net/KEM.483.97
Citation
B. J. Lv, P. F. Wang, X. W. Liu, L. Yin, N. Xu, "A Capacitor-Free CMOS Low-Noise, Low-Dropout Regulator for Capacitive Micro-Machined Accelerometer Application", Key Engineering Materials, Vol. 483, pp. 97-102, 2011
Online since
June 2011
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Yun Tao Liu, Xiao Wei Liu, Wei Ping Chen, Qun Wu
Abstract:A nonlinearity model including distortion components for sigma-delta (ΣΔ) accelerometer that allows stability analysis is described. Based on...
716
Authors: Yao Guang Li, Xiao Wei Liu, Yan Xiao, Yun Tao Liu
Abstract:This paper reports on a system level design and analysis of a single-loop fourth-order sigma-delta (ΣΔ) accelerometer. Compared with a...
422
Authors: Heng Liu, Xiao Ping He, Wei Su, Fu Tang Zhang
Abstract:The main advantage of a resonant accelerometer based on electrostatic stiffness over other sensing principles is it can make use of the...
195
Authors: Bing Jun Lv, Peng Fei Wang, Dong Bo Wang, Jun'an Liu, Xiao Wei Liu
Chapter 1: Micro/Nano Transducer/Acutar/Robot
Abstract:In this paper a high-performance closed-loop fourth-order sigma-delta (ΣΔ) micro-accelerometer is presented. After a introduction of...
134
Authors: Jing Li, Shang Chun Fan, Zhan She Guo
Chapter 1: Materials Design
Abstract:A resonant accelerometer was designed in order to overcome low output precision characteristics of the sensors which were tested with analog...
18