Title :
Bulk-driven adaptively biased OTA in 0.18 μm CMOS
Author :
Kulej, T. ; Khateb, F.
Author_Institution :
Dept. of Electr. Eng., Tech. Univ. of Czestochowa, Czestochowa, Poland
Abstract :
A new solution for a bulk-driven ultra-low-voltage operational transconductance amplifier (OTA) is described. While implemented in a standard 0.18 μm CMOS process, the circuit provides linear operation (total harmonic distortion <;1%) for rail-to-rail input swing and supply voltages ranging from 0.25 to 0.5 V. The good linearity performance is Maintained over a large range of transconductances and biasing currents.
Keywords :
CMOS analogue integrated circuits; harmonic distortion; operational amplifiers; THD; biasing currents; bulk-driven adaptively biased OTA; linearity performance; rail-to-rail input swing; size 0.18 mum; standard CMOS process; total harmonic distortion; ultra-low-voltage operational transconductance amplifier; voltage 0.25 V to 0.5 V;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2014.4437
