DocumentCode
396423
Title
Analysis of the averaging technique in flash ADCs
Author
Figueiredo, Pedro M. ; Vital, João C.
Volume
1
fYear
2003
fDate
25-28 May 2003
Abstract
The averaging technique is used in flash analog-to-digital converters to reduce non-linearities resulting from random offset voltages of the pre-amplifiers, which stand before the comparators. The main contribution of this paper is to provide further insight into this technique through exact closed form expressions obtained for the output voltage, gain and offset in averaged pre-amplifiers. The results obtained from these expressions are compared with HSPICE simulations, and a very good agreement is found.
Keywords
analogue-digital conversion; circuit simulation; comparators (circuits); nonlinear network analysis; preamplifiers; ADC averaging technique; averaged preamplifier output voltage; comparators; flash ADC; flash analog-to-digital converters; nonlinearity reduction; preamplifier gain; preamplifier offset; preamplifier random offset voltages; Filtering; Frequency; Linearity; MOSFETs; Parasitic capacitance; Power dissipation; Resistors; Voltage;
fLanguage
English
Publisher
ieee
Conference_Titel
Circuits and Systems, 2003. ISCAS '03. Proceedings of the 2003 International Symposium on
Print_ISBN
0-7803-7761-3
Type
conf
DOI
10.1109/ISCAS.2003.1205697
Filename
1205697
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