Title :
Accurate transient response model for automatic synthesis of high-speed operational amplifiers
Author :
Azzolini, Cristiano ; Milanesi, Paolo ; Boni, Andrea
Author_Institution :
Dept. of Inf. Eng., Parma Univ.
Abstract :
This paper presents an accurate time-domain analysis of operational amplifiers´ step response. Both slewing and linear settling phases are investigated in order to correct some discrepancies found in previous literature works. Moreover theoretical results are exploited developing a CAD tool for the automatic synthesis of high-gain highspeed operational amplifiers. Transistor level simulations are performed with MOS lev. 2 and BSIM3v3 models for a telescopic OTA evaluated in the design of a 12-b 200-MS/s pipelined analog-to-digital converter in a 0.35-mum BiCMOS technology. The excellent agreement between predicted and simulated results are the consequence of an improved analysis of the slewing-to-linear transition
Keywords :
BiCMOS integrated circuits; network synthesis; operational amplifiers; step response; time-domain analysis; transient response; 0.35 micron; 12 bit; BSIM3v3 models; BiCMOS technology; MOS lev. 2; automatic synthesis; high-speed operational amplifiers; linear settling phase; pipelined analog-to-digital converter; slewing phase; slewing-to-linear transition; step response; time-domain analysis; transient response model; transistor level simulations; Analog-digital conversion; BiCMOS integrated circuits; Design automation; MOSFETs; Operational amplifiers; Optical design; Performance evaluation; Space technology; Time domain analysis; Transient response;
Conference_Titel :
Circuits and Systems, 2006. ISCAS 2006. Proceedings. 2006 IEEE International Symposium on
Conference_Location :
Island of Kos
Print_ISBN :
0-7803-9389-9
DOI :
10.1109/ISCAS.2006.1693933
