A Tunable Gain and Bandwidth Low-Noise Amplifier with 1.44 NEF for EMG and EOG Biopotential Signal
نویسندگان
چکیده
This paper presents a low-noise inverter-based current-mode instrumentation amplifier with tunable gain and bandwidth for electromyogram (EMG) electrooculogram (EOG) biopotential signals, targeting low input noise while maintaining power consumption. The tuning method is based on pseudo-resistors, whereas the due to varactor system that controlled by same control voltage tunes gain. circuit was designed manufactured using 110 nm UMC CMOS technology node, occupying an area of 0.624 mm2. functioning mode each signal different characteristics, EMG 34.7 dB 1412 Hz measured, referred 1.407 μV which matches efficiency factor 1.44. EOG achieves 39.5 22.4 presenting input-referred 0.829 corresponding 6.37. For both modes, supply 1.2 V consumes 1 μA.
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ژورنال
عنوان ژورنال: Electronics
سال: 2023
ISSN: ['2079-9292']
DOI: https://doi.org/10.3390/electronics12122592