Title :
Improved design criteria of gain-boosted CMOS OTA with high speed optimizations
Author :
Das, Mrinal ; Hellums, Jim
Author_Institution :
Texas Instrum. India Ltd., India
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;
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
DOI :
10.1109/ISCAS.2000.857398
