Equalization method for mismatch errors in two-channel time-interleaved analog-to-digital converters

Author

Konuk, B. ; Hakyemez, S.E.

Author_Institution

REHIS Tasarim Teknolojileri Direktorlugu, ASELSAN A.S., Ankara, Turkey

fYear

2013

fDate

24-26 April 2013

Firstpage

1

Lastpage

4

Abstract

A 2-channel time-interleaved (TI) analog-to-digital converter (ADC) consists of 2 individual ADCs operating in parallel in order to increase the sampling frequency by a factor of 2. Although this approach seems to be very straightforward in order to increase the sampling rate; performance requirements cannot be met due to offset, gain and sampling-time mismatches in independent ADCs. In this paper, a 2-channel TI ADC equalization method developed in order to minimize spectral effects of mentioned mismatches is presented. Furthermore, results of the mentioned equalization method on a real high speed 2-channel TI ADC data are presented.

Keywords

analogue-digital conversion; equalisers; 2-channel TI ADC equalization method; sampling frequency; sampling-time mismatch error; spectral effect minimization; two-channel time-interleaved analog-to-digital converter; Adaptive systems; Analog-digital conversion; Calibration; Circuits and systems; Frequency conversion; Time-frequency analysis; Timing; Time-interleaved analog-to-digital converter; equalization method; gain and sampling time mismatches; offset;

fLanguage

English

Publisher

ieee

Conference_Titel

Signal Processing and Communications Applications Conference (SIU), 2013 21st

Conference_Location

Haspolat

Print_ISBN

978-1-4673-5562-9

Electronic_ISBN

978-1-4673-5561-2

Type

conf

DOI

10.1109/SIU.2013.6531348

Filename

6531348