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High current efficiency classAB OTA with high open loop gain and enhanced bandwidth
- Publication Year :
- 2017
- Publisher :
- IEICE, 2017.
-
Abstract
- An efficient class-AB OTA with enhanced output current, slew rate, open loop gain, and gain bandwidth is presented. The circuit is based on a class-AB input stage with adaptive biasing, and an output stage with dynamically biased cascode transistors. It can deliver output currents 100 times larger than the bias current with a total quiescent power dissipation of 72 µW. Measurement results of a 180 nm CMOS test chip prototype show slew rate, gain bandwidth, and open loop gain enhancement.
- Subjects :
- Class-AB, OTA
Current efficiency
Subjects
Details
- Language :
- English
- Database :
- OpenAIRE
- Accession number :
- edsair.od......3272..5607a5dbf28ce05bf981e81512e74fdb