A CMOS analog buffer with high output drivability is presented. The buffer combines class-AB operation with rail-to-rail signal swing. A new adaptive biasing scheme is proposed with low complexity, thereby allowing the construction of a very compact, low-power analog voltage buffer with wide bandwidth and high slew rate. Simulated results using a 0.35-mum CMOS process are provided. The circuit operates from a single 1.5-V power supply and has a quiescent power consumption of only 282 muW.
Published in:
Circuit Theory and Design, 2007. ECCTD 2007. 18th European Conference on
Date of Conference: 27-30 Aug. 2007