Title :
A compensated temperature CMOS voltage-controlled grounded resistance circuit
Author :
Prommee, Pipat ; Yuttasukprasert, Lerssak ; Somdulyakanok, Montree ; Dejhan, Kobachai
Author_Institution :
Fac. of Eng. & Res. Center for Commun. & Inf. Technol., King Mongkut´´s Inst. of Technol., Thailand
Abstract :
A CMOS voltage-controlled grounded resistor (VCGR) using a new approach for nonlinearity terms cancellation is proposed. The proposed circuit uses 17 MOS transistors that operate in ohmic region and saturation region. It consists of the voltage attenuator, voltage differential and voltage inverting circuits. These circuits are performed as a voltage dependent source for biasing an ohmic transistor; cancel the nonlinearity terms and threshold voltage in order to compensate the temperature effect. The first order high-pass filter with, tunable a cut-off frequency is presented as an application. The proposed circuit characteristics are high linearity and temperature compensation. The results have been confirmed by PSPICE.
Keywords :
CMOS integrated circuits; SPICE; attenuators; compensation; high-pass filters; power engineering computing; power transistors; voltage control; CMOS; MOS; PSPICE; Simulation Program with Integrated Circuit Emphasis; complementary metal-oxide-semiconductor; high-pass filter; metal-oxide-semiconductor; ohmic transistor; temperature compensation; threshold voltage; voltage attenuator; voltage control; voltage inverting circuits; voltage-controlled grounded resistor; Attenuators; Cutoff frequency; Filters; Linearity; MOSFETs; Resistors; SPICE; Temperature dependence; Threshold voltage; Tunable circuits and devices;
Conference_Titel :
TENCON 2004. 2004 IEEE Region 10 Conference
Print_ISBN :
0-7803-8560-8
DOI :
10.1109/TENCON.2004.1414928
