Title :
BiCMOS vs. CMOS Operational Amplifiers for High-Speed Pipelined A/D Converters
Author :
Azzolini, Cristiano ; Boni, Andrea
Author_Institution :
Univ. of Parma, Parma
Abstract :
This paper presents a comparison between BiCMOS and CMOS op-amps to be employed in pipelined analog-to-digital converters. Single and two-stage architectures were considered; in addition, a couple of op-amps exploiting bipolar devices in the input stage are proposed. The amplifiers were designed for the first stage of a 12-b high-speed converter; op-amps are constrained by a fixed power budget and are compared in terms of the error due to their finite DC-gain and incomplete settling.
Keywords :
BiCMOS integrated circuits; CMOS integrated circuits; analogue-digital conversion; bipolar integrated circuits; operational amplifiers; BiCMOS operational amplifiers; CMOS operational amplifiers; analog-to-digital converters; bipolar devices; high-speed pipelined A/D converters; single architecture; two-stage architecture; word length 12 bit; Analog-digital conversion; Bandwidth; BiCMOS integrated circuits; CMOS process; CMOS technology; High power amplifiers; Information technology; Operational amplifiers; Optical design; Voltage;
Conference_Titel :
Electronics, Circuits and Systems, 2006. ICECS '06. 13th IEEE International Conference on
Conference_Location :
Nice
Print_ISBN :
1-4244-0395-2
Electronic_ISBN :
1-4244-0395-2
DOI :
10.1109/ICECS.2006.379624
