Title :
Low-voltage CMOS instrumentation amplifier for piezoresistive transducer
Author :
Sangtong, Suttisak ; Thanachayanont, Apinunt
Author_Institution :
Res. Center of Commun. & Inf. Technol., King Mongkut´´s Inst. of Technol., Bangkok
Abstract :
A low-voltage CMOS instrumentation amplifier for piezoresistive transducer is proposed. An input current sensing configuration is used to allow the use of a single piezoresistor and low voltage operation. The amplifier is realized using a 0.35-mum CMOS technology and operates under a single 1.5 power supply voltage. Simulation results showed that the amplifier can achieve the maximum CMRR of 139 dB while dissipating 489 muW.
Keywords :
CMOS integrated circuits; amplifiers; low-power electronics; piezoresistive devices; resistors; CMOS instrumentation amplifier; low voltage operation; piezoresistive transducer; piezoresistor; power 489 muW; size 0.35 mum; voltage 1.5 V; Bridge circuits; CMOS technology; Electrical resistance measurement; Instruments; Linearity; Low voltage; Piezoresistance; Power supplies; Resistors; Transducers; Instrumentation amplifier; piezoresistive; sensor interface;
Conference_Titel :
TENCON 2005 2005 IEEE Region 10
Conference_Location :
Melbourne, Qld.
Print_ISBN :
0-7803-9311-2
Electronic_ISBN :
0-7803-9312-0
DOI :
10.1109/TENCON.2005.301274
