Adaptive biasing folded cascode CMOS OP amp with continuous-time push-pull CMFB scheme
SCIE
SCOPUS
- Title
- Adaptive biasing folded cascode CMOS OP amp with continuous-time push-pull CMFB scheme
- Authors
- Sim, JY; Lee, CH; Jeong, WC; Park, HJ
- Date Issued
- 1997-09
- Publisher
- IEICE-INST ELECTRONICS INFORMATION CO
- Abstract
- A fully differential folded cascode CMOS OP amp is combined with an adaptive bias OTA to increase the slew rate, and a continuous-time CMFB circuit with a push-pull type combination of a NMOS input and a PMOS input differential amplifiers is used to maximize the output voltage swing. The fabricated OP amp using a 0.8 mu m digital CMOS process gives more than three times improvement in slew rate with a 15% increase in DC power consumption and a 7.5% increase in chip area compared to the conventional OP amp fabricated on the same die. The output voltage swing was measured to be -0.75 V-0.7 V at the supply voltage of +/- 1.2 V.
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/21213
- ISSN
- 0916-8524
- Article Type
- Article
- Citation
- IEICE TRANSACTIONS ON ELECTRONICS, vol. E80C, no. 9, page. 1203 - 1210, 1997-09
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- There are no files associated with this item.
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