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.

fYear

2006

fDate

21-24 May 2006

Lastpage

5719

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/ISCAS.2006.1693933

Filename

1693933