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Low voltage class AB current differencing buffered amplifier (CDBA)
Author(s)
Kanjanop, Arnon
Date Issued
December 1, 2011
Type
Conference Paper
Abstract
This paper presents a low voltage class AB current differencing buffered amplifier (CDBA). The circuit is developed based on two low voltage current mirrors and voltage follower. In the design, dynamic threshold voltage MOSFET (DTMOS) is employed as core devices. The proposed circuit is designed using a 0.13 m CMOS technology and can operate under the supply voltage of 0.7 V. The simulation results show the impedance at ports p, n, z and w of 16.89, 15.99, 102.4 k, and 15.56, respectively. The current transfer ratio i z/i p, i z/i n and voltage transfer ratio v w/v z are found to be close to one (i z/i p=0.998, i z/i n=0.996 and v w/v z=0.995) with the bandwidths of 460 MHz, 522 MHz and 172 MHz, respectively. © 2011 IEEE.
Citation
2011 International Symposium on Intelligent Signal Processing and Communications Systems the Decade of Intelligent and Green Signal Processing and Communications Ispacs 2011, 2011