Title :
Temperature-insensitive voltage-to-current converter and its applications
Author :
Surakampontorn, Wanlop ; Riewruja, Vanchai ; Kumwachara, Kiattisak ; Surawatpunya, Charray ; Anuntahirunrat, Kongsak
Author_Institution :
Fac. of Eng., King Mongkut´´s Inst. of Technol., Bangkok, Thailand
fDate :
12/1/1999 12:00:00 AM
Abstract :
A novel voltage-to-current (V/I) converter circuit is proposed, which is based on an operational transconductance amplifier (OTA) integrated circuit. The V/I transconductance gain is insensitive to temperature and the input differential voltage swing limitation of the OTA integrated circuit is alleviated. New circuits for the temperature-insensitive general-grounded resistance converter, instrumentation amplifier, electronically tunable gyrator, and analog multiplier are presented. Experimental and simulation results that demonstrate the performances of the V/I convertor and its applications are also included
Keywords :
analogue multipliers; convertors; gyrators; instrumentation amplifiers; operational amplifiers; V/I transconductance gain; analog multiplier; electronically tunable gyrator; input differential voltage swing limitation; instrumentation amplifier; operational transconductance amplifier; temperature-insensitive general-grounded resistance converter; temperature-insensitive voltage-to-current converter; Equations; Filters; Gyrators; Impedance; Instruments; Operational amplifiers; Temperature dependence; Transconductance; Tunable circuits and devices; Voltage;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
