DocumentCode
120734
Title
A preamplifier-latch comparator for high accuracy high speed switched-capacitors pipelined ADC
Author
Hao Zheng ; Xiangning Fan
Author_Institution
Sch. of Inf. Sci. & Eng., Southeast Univ. Nanjing, Nanjing, China
fYear
2014
fDate
23-25 July 2014
Firstpage
1144
Lastpage
1148
Abstract
In this paper, a gain-boosting preamplifier-latch comparator with minimum input referred offset voltage is proposed. The preamplifier utilizes telescope structure with cross-coupled active loading, which enhances the gain of preamplifier. In order to minimize the delay time of comparator, the input DC range and the ratio of PMOS/NMOS are selected carefully. The circuit is fabricated in TSMC 0.18um with 1.8V power supply.
Keywords
analogue-digital conversion; capacitors; comparators (circuits); preamplifiers; NMOS; PMOS; cross-coupled active loading; gain-boosting preamplifier-latch comparator; high accuracy high speed switched-capacitor pipelined ADC; preamplifier-latch comparator; telescope structure; Delays; Latches; Loading; Noise; Preamplifiers; Telescopes; Transistors; Comparator; Cross-Couple Latch; Offset; Telescope Amplifier with Cross-Couple Load;
fLanguage
English
Publisher
ieee
Conference_Titel
Communication Systems, Networks & Digital Signal Processing (CSNDSP), 2014 9th International Symposium on
Conference_Location
Manchester
Type
conf
DOI
10.1109/CSNDSP.2014.6924002
Filename
6924002
Link To Document