Channel mismatch estimation in time-interleaved ADCs based on input dependent estimating model

Sujuan Liu; Junshan Wang; Peipei Qi

doi:10.1117/12.946063

2 June 2012 Channel mismatch estimation in time-interleaved ADCs based on input dependent estimating model

Sujuan Liu, Junshan Wang, Peipei Qi

Proceedings Volume 8334, Fourth International Conference on Digital Image Processing (ICDIP 2012); 83340S (2012) https://doi.org/10.1117/12.946063
Event: Fourth International Conference on Digital Image Processing (ICDIP 2012), 2012, Kuala Lumpur, Malaysia

Abstract

Time-interleaved Analog-to-Digital Converter (TIADC) is an efficient way to achieve higher sampling rates for medium-to-high resolution applications. However, the performance of a TIADC suffers from mismatch errors among the sub-channels. This paper presents a method to estimate the channel mismatch errors using the sub-channels' output data. The proposed method introduces an input dependent estimating model (IDEM) based on an equivalent transfer function including the mismatch errors to calculate the standard deviation of the mismatch errors. The spurious-free dynamic range (SFDR) is then evaluated by applying multi-tone sinusoids signal to input. The simulated results show that the method in this work can get about 45dB SFDR enhancement.

Citation Download Citation

Sujuan Liu, Junshan Wang, and Peipei Qi "Channel mismatch estimation in time-interleaved ADCs based on input dependent estimating model", Proc. SPIE 8334, Fourth International Conference on Digital Image Processing (ICDIP 2012), 83340S (2 June 2012); https://doi.org/10.1117/12.946063

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
5 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Error analysis

Systems modeling

Analog electronics

Calibration

Fourier transforms

Statistical analysis

Statistical modeling

Show All Keywords

Keywords/Phrases

Search In:

Publication Years