DocumentCode
1169
Title
Enhancing transconductance of ultra-low-power two-stage folded cascode OTA
Author
Akbari, Mohammad ; Hashemipour, Omid
Author_Institution
Microelectron. Lab., Shahid Beheshti Univ., Tehran, Iran
Volume
50
Issue
21
fYear
2014
fDate
October 9 2014
Firstpage
1514
Lastpage
1516
Abstract
Using the Gm-C compensation technique, an ultra-low-power two-stage operational transconductance amplifier (OTA) with rail-to-rail input/output swing is presented. The input stage of the proposed OTA has the benefit of transconductance enhancement compared to the conventional OTA with the same power consumption and silicon area. Simulation results in a 0.18 μm CMOS technology show a DC gain enhancement of 9.5 dB as well as 88% improvement in gain bandwidth compared to the conventional folded cascode input stage structure.
Keywords
CMOS analogue integrated circuits; compensation; elemental semiconductors; low-power electronics; operational amplifiers; silicon; CMOS; DC gain enhancement; Gm-C compensation technique; Si; gain bandwidth; operational transconductance amplifier; power consumption; rail-to-rail input/output swing; silicon area; size 0.18 mum; transconductance; ultra-low-power two-stage folded cascode OTA;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el.2014.2399
Filename
6926965
Link To Document