An Energy-Efficient Low-Noise Complementary Parametric Amplifier Achieving 0.89 NEF
- Conference Paper
This paper presents an energy-efficient low-noise amplifier, achieving 0.89 noise efficiency factor (NEF) using discrete-time parametric amplification. A complementary parametric input stage is proposed to eliminate any DC shift between the input and output voltage levels. The power consumption is reduced by adopting a 34-phase stepwise charging technique and the sampling-induced input-referred noise is minimized by oversampling the input signal. Time- interleaving multiple parallel stages allows implementing the multiphase soft-charging scheme without causing any significant penalty in terms of area. A second current-reuse inverter-based amplification stage is designed to provide high gain, while its contribution to the total input-referred noise is attenuated by the preamplifier gain. The overall NEF is 1.76 and the total power consumption is 1.73 µW. © 2020 IEEE. Show more
Book title2020 IEEE 63rd International Midwest Symposium on Circuits and Systems (MWSCAS)
Pages / Article No.
Subjectnoise efficiency factor; NEF; low-noise amplifier; parametric amplification; soft-charging; instrumentation amplifier
Organisational unit09647 - Jang, Taekwang / Jang, Taekwang
NotesDue to the Corona virus (COVID-19) the conference was conducted virtually.
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