A tutorial to switched-capacitor noise analysis by hand
No Thumbnail Available
Authors
Author (Corporation)
Publication date
2016
Typ of student thesis
Course of study
Collections
Type
01A - Journal article
Editors
Editor (Corporation)
Supervisor
Parent work
Analog Integrated Circuits and Signal Processing
Special issue
DOI of the original publication
Series
Series number
Volume
89
Issue / Number
Pages / Duration
249-261
Patent number
Publisher / Publishing institution
Springer
Place of publication / Event location
Edition
Version
Programming language
Assignee
Practice partner / Client
Abstract
The methods for switched-capacitor (SC) noise analysis published up to this date fall in two groups: one group contains methods suitable for analysis by hand that are not easily applicable to all SC circuits. The other group contains methods that are applicable to all SC circuits, but require matrix manipulations with a computer algebra tool. In this paper, we show a universally applicable hand-analysis method. The main reason why SC noise analysis is so difficult is that noise is sampled on many different capacitors, and when being sampled, its spectrum is aliased. The core idea of making analysis by hand possible is to use an intuitive rather than an algebraic method to derive the continuous-time noise spectra in the different phases. Our method combines charge-equation analysis for the discrete-time aspects with signal-flow-graph analysis for the continuous-time aspects of a circuit. We show in tutorial style how to apply it, and demonstrate that it is very useful for getting insight into SC circuits, deriving simplified expressions, and getting a good correspondence with behavioural simulations using SpectreRF.
Keywords
Switched-capacitor circuits, Noise analysis, Signal-flow graph, Driving-point impedance, Sampled noise
Subject (DDC)
Event
Exhibition start date
Exhibition end date
Conference start date
Conference end date
Date of the last check
ISBN
ISSN
1573-1979
0925-1030
0925-1030
Language
English
Created during FHNW affiliation
Yes
Strategic action fields FHNW
Publication status
Published
Review
Peer review of the complete publication
Open access category
License
Citation
SCHMID, Hanspeter, Lothar EICHELBERGER und Alexander HUBER, 2016. A tutorial to switched-capacitor noise analysis by hand. Analog Integrated Circuits and Signal Processing. 2016. Bd. 89, S. 249–261. DOI 10.1007/s10470-016-0806-1. Verfügbar unter: https://irf.fhnw.ch/handle/11654/33246