Improved design criteria of gain-boosted CMOS OTA with high speed optimizations

Author

Das, Mrinal ; Hellums, Jim

Author_Institution

Texas Instrum. India Ltd., India

Volume

5

fYear

2000

fDate

2000

Firstpage

201

Abstract

A comprehensive study on gain-boosted regulated cascode operational transconductance amplifiers (OTA) is discussed. These amplifiers are usually good for power optimized high-speed designs. However location of an additional pole-zero pair in the transfer function makes the transient response much slower than expected. A new design is proposed along with the systematic approach which get rid of this pole-zero pair and deliberately puts a pair of complex poles to make the design faster

Keywords

CMOS analogue integrated circuits; circuit optimisation; high-speed integrated circuits; integrated circuit design; operational amplifiers; poles and zeros; transfer functions; transient response; gain-boosted regulated cascode CMOS OTA; high-speed design optimization; operational transconductance amplifier; pole-zero pair; telescopic amplifier; transfer function; transient response; Bandwidth; Boosting; Design optimization; Instruments; Optical design; Parasitic capacitance; Semiconductor device modeling; Transconductance; Transfer functions; Transient response;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 2000. Proceedings. ISCAS 2000 Geneva. The 2000 IEEE International Symposium on

Conference_Location

Geneva

Print_ISBN

0-7803-5482-6

Type

conf

DOI

10.1109/ISCAS.2000.857398

Filename

857398