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Ultra Low Voltage and Low Power Biopotential Amplifier with High Electromagnetic Interference Immunity

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In this paper an ultra low voltage and low power amplifier for biomedical applications is proposed. It is based on a 2-stages fully-differential highly symmetrical CMOS amplifier and it exhibits high linearity, low noise and low susceptibility to Electromagnetic Interferences. At 0.5 V supply it has a gain of 43 dB, a CMRR of 118 dB, a GBW of 370 kHz and a power consumption of 2 μW. It is designed in UMC 180 nm technology, using regular threshold transistors.
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Keywords: BIOPOTENTIAL AMPLIFIER; CMOS OPERATIONAL AMPLIFIERS; IMMUNITY TO ELECTROMAGNETIC INTERFERENCE; INTEGRATED CIRCUITS; LOW POWER

Document Type: Research Article

Publication date: June 1, 2016

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  • The electronic systems that can operate with very low power are of great technological interest. The growing research activity in the field of low power electronics requires a forum for rapid dissemination of important results: Journal of Low Power Electronics (JOLPE) is that international forum which offers scientists and engineers timely, peer-reviewed research in this field.
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