Title :
Improvement of linearity in a CMOS transconductor by employing a squaring circuit
Author :
Dwivedi, Shipra ; Gogoi, Anup Kumar
Author_Institution :
Dept. of Electron. & Electr. Eng., Indian Inst. of Technol. Guwahati, Guwahati, India
Abstract :
A High performance linear transconductor has been realized by employing a squaring circuit technique. The transconductor is tunable by adjusting the bias voltage, and suitable for application to highly linear continuous-time filters. Experimental results show that the nonlinearity error of the output current is less than 0.5% for the differential input signals of up to 1.2 V (peak-to-peak) at 23.6 μA of bias current when the supply voltages are ±0.9 V.
Keywords :
CMOS integrated circuits; continuous time filters; power supply circuits; CMOS transconductor; bias voltage; continuous-time filters; current 23.6 muA; differential input signals; high performance linear transconductor; nonlinearity error; output current; squaring circuit technique; supply voltages; CMOS integrated circuits; Equations; Linearity; Mathematical model; Transconductance; Transistors; Voltage control;
Conference_Titel :
Emerging Research Areas and 2013 International Conference on Microelectronics, Communications and Renewable Energy (AICERA/ICMiCR), 2013 Annual International Conference on
Conference_Location :
Kanjirapally
Print_ISBN :
978-1-4673-5150-8
DOI :
10.1109/AICERA-ICMiCR.2013.6575940
