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Title An ultra low-power CMOS instrumentation amplifier for biomedical applications
 
Names BAGHINI, MS
LAL, RAKESH
SHARMA, DK
Date Issued 2004 (iso8601)
Abstract An ultra low-power biopotential instrumentation amplifier, based on the current balancing technique is presented. An internal programmable high-pass filter has been included in the instrumentation amplifier to filter out low-frequency artifacts if necessary. The instrumentation amplifier was fabricated in a multi-project test chip in 035μ mixed mode CMOS process through MOSIS. Measurement results show that the instrumentation amplifier draws a current of 9μA from a 3.3 V lithium-ion battery and it has CMRR of 100 dB and input voltage dynamic range of ±6 mV. The input referred noise voltage is 0.3μV/√Hz with a flicker noise corner frequency of 15 Hz. Design methodology and experimental results along with measurement issues are given in this paper.
Genre Article
Topic Amplifiers (Electronic)
Identifier Proceedings of the IEEE International Workshop on Biomedical Circuits and Systems, Singapore, 1-3 December 2004, S1-1-1-S1-1-4