Publication: Low-voltage CMOS instrumentation amplifier for piezoresistive transducer
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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-μm 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 μW.
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Keywords
Instrumentation amplifier, Piezoresistive, Sensor interface
Citation
IEEE Region 10 Annual International Conference Proceedings TENCON, 2007, 2005