Digital Compensation Techniques for Frequency-Translating Hybrid Analog-to-Digital Converters

Author

Mazlouman, Shahrzad Jalali ; Sheikhaei, Samad ; Mirabbasi, Shahriar

Author_Institution

Electr. & Comput. Eng. Dept., Univ. of British Columbia, Vancouver, BC, Canada

Volume

60

Issue

3

fYear

2011

fDate

3/1/2011 12:00:00 AM

Firstpage

758

Lastpage

767

Abstract

The frequency-translating hybrid analog-to-digital converter (FTH-ADC) architecture is based on frequency interleaving and decomposing the wideband analog input signal into narrower-bandwidth analog baseband subbands, digitizing them, and performing further signal processing in the digital domain. In this paper, digital compensation techniques to enhance the performance of the FTH-ADC system in the presence of errors due to a variety of mismatches are presented. The effectiveness of these techniques to enhance the performance of the system is confirmed using a proof-of-concept two-channel prototype.

Keywords

analogue-digital conversion; compensation; digital integrated circuits; FTH-ADC system; analog-digital converters; digital compensation techniques; frequency interleaving; frequency-translating hybrid ADC; proof-of-concept; signal processing; two-channel prototype; $I/Q$ mismatch measurement and compensation; Analog-to-digital conversion (ADC); calibration; data conversion; frequency-translating hybrid ADC (FTH-ADC); wideband;

fLanguage

English

Journal_Title

Instrumentation and Measurement, IEEE Transactions on

Publisher

ieee

ISSN

0018-9456

Type

jour

DOI

10.1109/TIM.2010.2045254

Filename

5672599