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|Title:||An ultra low-power CMOS instrumentation amplifier for biomedical applications|
High Pass Filters
|Citation:||Proceedings of the IEEE International Workshop on Biomedical Circuits and Systems, Singapore, 1-3 December 2004, S1-1-1-S1-1-4|
|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.|
|Appears in Collections:||Proceedings papers|
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