Title :
Programmable voltage-to-current converter with linear voltage control resistor
Author :
Huang, Hong Wei ; Hsieh, Wei Lun ; Chen, Ke Horng
Author_Institution :
RichTek Technol. Corp., Hsinchu
Abstract :
A programmable voltage-to-current converter with linear voltage control resistor (VCR) is presented in this paper. It uses a cascoded flipped voltage follower (CASFVF) to be the input stage in order to enhance the response time and accuracy. Programmability is achieved by using the control signal Vctrl to adjust the equivalent resistance of VCR. Simulation results in 0.25-mum CMOS technology demonstrate the high linearity of the proposed voltage-to-current converter and VCR circuit.
Keywords :
CMOS logic circuits; convertors; operational amplifiers; programmable logic devices; resistors; CMOS technology; VCR electrical resistance; cascoded flipped voltage follower; control signal; linear voltage control resistor; programmable voltage-to-current converter; size 0.25 mum; CMOS technology; Circuits; Delay; Impedance; Linearity; Mirrors; Power dissipation; Resistors; Video recording; Voltage control; Flipped voltage follower; V-I converter; floating-gate technique; voltage control resistor;
Conference_Titel :
Circuits and Systems, 2008. ISCAS 2008. IEEE International Symposium on
Conference_Location :
Seattle, WA
Print_ISBN :
978-1-4244-1683-7
Electronic_ISBN :
978-1-4244-1684-4
DOI :
10.1109/ISCAS.2008.4541916
