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- W4226052889 abstract "In this paper, a fully-differential low-power low-noise neural recording amplifier with a novel recycling telescopic-cascode (RTC) operational transconductance amplifier (OTA) is presented. In the proposed RTC-OTA, the current recycling and positive feedback cross-coupled transistors are utilized to significantly improve the OTA's parameters such as DC gain and unity gain bandwidth. The gain enhancement also improves the linearity in the closed-loop structure. Extensive analytical calculations and simulation results using the <tex xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>$boldsymbol{0.18-mu mathrm{m}}$</tex> TSMC CMOS process are provided to evaluate the usefulness of the proposed OTA. The simulated neural recording amplifier achieves 4.46 <tex xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>$boldsymbol{mu mathrm{V}_{text{rms}}}$</tex> input-referred noise over 1 Hz-10 kHz bandwidth, 1.82 noise efficiency factor, -46 dB total harmonic distortion (THD) for an 18 <tex xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>$boldsymbol{text{mV}_{text{pp}}}$</tex> , 1kHz sinusoidal input. The power consumption is 2.25 <tex xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>$boldsymbol{mu mathrm{W}}$</tex> from a 1.8-V voltage supply." @default.
- W4226052889 created "2022-05-05" @default.
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- W4226052889 date "2021-12-22" @default.
- W4226052889 modified "2023-09-26" @default.
- W4226052889 title "A Low-Power Low-Noise Neural Recording Amplifier With Improved Telescopic-Cascode OTA" @default.
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- W4226052889 doi "https://doi.org/10.1109/iicm55040.2021.9730196" @default.
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