SNR probability in time-interleaved ADCs with random channel mismatches

Author

Leger, Gildas ; Peralías, Eduardo ; Rueda, Adoración

Author_Institution

Instituto de Microelectron. de Sevilla (IMSE-CNM), Seville Univ., Spain

Volume

2

fYear

2002

fDate

2002

Abstract

One of the ways to push the speed limits of Analog to Digital Converters (ADCs) is to time-interleave several channels. However, any mismatch between channels degrades the converter resolution. This work is a deep study of the impact of random time skew, gain and offset mismatches on the Signal-to-Noise Ratio (SNR). The SNR probability density function (PDF) is determined as a function of both these errors and the number of channels. It provides valuable information about the performance margins that could be expected in a design

Keywords

analogue-digital conversion; errors; integrated circuit noise; probability; SNR PDF determination; SNR probability density function; analog to digital converters; converter resolution; gain mismatches; offset mismatches; random channel mismatches; random time skew; signal-to-noise ratio; time-interleaved ADCs; Data conversion; Degradation; Frequency; Interleaved codes; Phase distortion; Phased arrays; Probability density function; Random variables; Sampling methods; Signal resolution;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 2002. ISCAS 2002. IEEE International Symposium on

Conference_Location

Phoenix-Scottsdale, AZ

Print_ISBN

0-7803-7448-7

Type

conf

DOI

10.1109/ISCAS.2002.1011004

Filename

1011004