Low-Power Low-Noise Amplifier Using Attenuation-Adaptive Noise Control for Ultrasound Imaging Systems

This paper presents a low-noise amplifier (LNA) using attenuation-adaptive noise control (AANC) for ultrasound imaging systems. The proposed AANC reduces unnecessary power consumption of the LNA, which arises from useless noise floor, by controlling the noise floor of the LNA with respect to the att...

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Veröffentlicht in:	IEEE transactions on biomedical circuits and systems 2017-02, Vol.11 (1), p.108-116
Hauptverfasser:	Jung, Sung-Jin, Hong, Seong-Kwan, Kwon, Oh-Kyong
Format:	Artikel
Sprache:	eng
Schlagworte:	Adaptive control Amplifiers Amplifiers, Electronic Attenuation Bandwidth Closed loops CMOS Current feedback amplifiers Electric potential Feedback Floors Gain Harmonic distortion Imaging Input referred noise low-noise amplifier (LNA) low-power Noise control noise efficiency factor Noise levels Power consumption Power demand Signal Processing, Computer-Assisted Transducers Ultrasonic imaging Ultrasonography Ultrasound ultrasound attenuation ultrasound imaging Voltage
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