Low power high-gain class-AB OTA with dynamic output current scaling
- Title
- Low power high-gain class-AB OTA with dynamic output current scaling
- Author
- 이상선
- Keywords
- operational transconductance amplifier (OTA); slew rate; dynamic biasing; voltage regulators; low-dropout regulator (LDO)
- Issue Date
- 2013-02
- Publisher
- IEICE-INST ELECTRONICS INFORMATION COMMUNICATIONS ENG
- Citation
- IEICE Electronics Express, Feb 2013, 10(3), P.20130042-20130042
- Abstract
- A high-performance operational transconductance amplifier (OTA) is proposed. In order to increase DC gain, gain bandwidth, and the slew rate under low standby quiescent current, the proposed OTA has the dynamic output current scaling and class AB operation. Under the condition of 250 mu A quiescent current and a 30 pF load capacitance with a step voltage from 1.2 to 1.5V at a rise time of 1 nsec in a unit gain configuration, HSPICE simulation results are presented to show a higher DC gain, gain bandwidth and slew rate than conventional OTAs.
- URI
- http://www.jstage.jst.go.jp/article/elex/10/3/10_10.20130042/_articlehttp://hdl.handle.net/20.500.11754/57747
- ISSN
- 1349-2543
- DOI
- 10.1587/elex.10.20130042
- Appears in Collections:
- COLLEGE OF ENGINEERING[S](공과대학) > ELECTRONIC ENGINEERING(융합전자공학부) > Articles
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