DocumentCode :
2172348
Title :
Power reduction of a 12-bit 40-MS/s pipeline ADC exploiting partial amplifier sharing
Author :
Díaz-Madrid, J.A. ; Neubauer, H. ; Hauer, H. ; Doménech-Asensi, G. ; Ruiz-Merino, R.
Author_Institution :
Integrated Circuit Design - Analog, Fraunhofer Inst. for Integrated Circuits, Erlangen
fYear :
2009
fDate :
20-24 April 2009
Firstpage :
369
Lastpage :
373
Abstract :
High performance analog-to-digital converters (ADC) are essential elements for the development of high performance image sensors. These circuits need a big number of ADCs to reach the required resolution at a specified speed. Moreover, nowadays power dissipation has become a key performance to be considered in analog designs, specially in those developed for portable devices. Design of such circuits is a challenging task which requires a combination of the most advanced digital circuit, the analog expertise knowledge and an iterative design. Amplifier sharing has been a commonly used technique to reduce power dissipation in pipelined ADCs. In this paper we present a partial amplifier sharing topology of a 12 bit pipeline ADC, developed in 0.35 mum CMOS process. Its performance is compared with a conventional amplifier scaling topology and with a fully amplifier sharing one.
Keywords :
CMOS integrated circuits; analogue-digital conversion; image sensors; low-power electronics; operational amplifiers; portable instruments; CMOS process; analog-to-digital converter; image sensor; operational amplifier; partial amplifier; pipeline ADC; portable device; power dissipation; power reduction; size 0.35 mum; word length 12 bit; Circuit noise; Clocks; High power amplifiers; Integrated circuit synthesis; Pipelines; Power amplifiers; Power dissipation; Signal resolution; Switches; Topology; ADC; CMOS; low-power; pipeline;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Design, Automation & Test in Europe Conference & Exhibition, 2009. DATE '09.
Conference_Location :
Nice
ISSN :
1530-1591
Print_ISBN :
978-1-4244-3781-8
Type :
conf
DOI :
10.1109/DATE.2009.5090690
Filename :
5090690
Link To Document :
بازگشت