DocumentCode :
934589
Title :
Effect of bit-threshold errors on the harmonic and intermodulation performance of successive approximation A/D converters
Author :
Abuelma´atti, Muhammad Taher
Author_Institution :
King Fahd Univ. of Pet. & Miner., Dhahran, Saudi Arabia
Volume :
41
Issue :
8
fYear :
1993
fDate :
8/1/1993 12:00:00 AM
Firstpage :
1155
Lastpage :
1160
Abstract :
A simple approach is described for predicting the harmonic and intermodulation performance of a real successive approximation analog-to-digital converter (ADC) with bit-threshold errors. The real ADC characteristic is split into an ideal staircase characteristic, representing the ideal ADC characteristic, minus a train of pulses, representing the bit-threshold errors. Series expressions are obtained for the output spectra of the real ADC excited by a multicarrier input signal with arbitrary amplitudes. The special case of two equal-amplitude carriers is considered in detail, and analytical expressions are obtained for the amplitudes of the harmonic and intermodulation products in terms of the individual bit-threshold errors. The feasibility of minimizing the amplitudes of the intermodulation products is explored
Keywords :
analogue-digital conversion; harmonics; intermodulation; signal processing; analog-to-digital converter; bit-threshold errors; equal-amplitude carriers; harmonic performance; ideal staircase characteristic; intermodulation performance; multicarrier input signal; successive approximation A/D converters; Analog-digital conversion; Digital signal processing; Harmonic analysis; Heart; Noise generators; Nonlinear distortion; Performance analysis; Quantization; Signal processing; Transfer functions;
fLanguage :
English
Journal_Title :
Communications, IEEE Transactions on
Publisher :
ieee
ISSN :
0090-6778
Type :
jour
DOI :
10.1109/26.231957
Filename :
231957
Link To Document :
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