Title :
A highly linear CMOS pseudo differential transconductor using active attenuator
Author :
Kulshreshtha, Tanmai ; Bhadauria, Vijaya
Author_Institution :
Dept. of Electron. & Electr. Commun. Eng., I.I.T. Kharagpur, Kharagpur, India
fDate :
Nov. 29 2010-Dec. 1 2010
Abstract :
A new linear pseudo differential transconductance amplifier (PDTA) has been proposed, which may be operated for the wide range of input signal amplitude with low harmonic distortion. The linearity of the PDTA has been improved using active attenuator. The proposed transconductor circuit shows the total harmonic distortion (THD) of below -62 dB for the input signal of 1 Vpp @ 5 MHz. The transconductor is implemented using UMC 180 nm CMOS process with 1.8 V supply voltage at room temperature (27°C).
Keywords :
CMOS integrated circuits; amplifiers; harmonic distortion; CMOS process; active attenuator; highly linear CMOS pseudo differential transconductor; input signal amplitude; linear pseudo differential transconductance amplifier; low harmonic distortion; total harmonic distortion; transconductor circuit; Attenuators; CMOS integrated circuits; Linearity; MOSFETs; Transconductance; Attenuator; CMOS; Pseudo-differential transconductor; harmonic distortion; linearity; source-degeneration;
Conference_Titel :
Power, Control and Embedded Systems (ICPCES), 2010 International Conference on
Conference_Location :
Allahabad
Print_ISBN :
978-1-4244-8543-7
DOI :
10.1109/ICPCES.2010.5698684
