Title
A finite gain bandwidth compensation method for low power continuous-time ΣΔ modulator
Abstract
Finite gain-bandwidth (GBW) effects include gain-error (GE) and loop delay which would degrade the overall performance of continuous-time ΣΔ modulator (CTDSM). This paper introduces an easy and simple finite GBW compensation method for CTDSM with active-RC integrators. This method overweighs other compensation methods by compensating GE and loop delay respectively, which can ensure the accuracy better. Moreover, this method is simple and easy while other methods need CT-to-DT conversion which makes it complex. With this compensation method applied, lower GBW amplifiers can be used to achieve lower power dissipation. A third-order CTDSM with 10MHz bandwidth, 400MHz sampling rate was simulated to verify the effectiveness of the method.
Year
DOI
Venue
2013
10.1109/ASICON.2013.6811891
ASICON
Keywords
Field
DocType
sigma-delta modulation,active rc integrator,continuous-time sigma-delta modulator,loop delay,integrating circuits,bandwidth 10 mhz,low power sigma-delta modulator,ct-dt conversion,finite gain bandwidth compensation method
Compensation methods,Computer science,Dissipation,Sampling (signal processing),Integrator,Modulation,Electronic engineering,Bandwidth (signal processing),Gain bandwidth,Amplifier
Conference
ISSN
ISBN
Citations 
2162-7541
978-1-4673-6415-7
0
PageRank 
References 
Authors
0.34
2
5
Name
Order
Citations
PageRank
Zemin Feng122.20
Chixiao Chen2135.20
Fan Ye33421.14
Jun Xu401.69
Junyan Ren515441.40