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title

A Low Power Low Noise Amplifier for Ultrasound Imaging Probes

Credit to Download: 1 | Page Numbers 5 | Abstract Views: 35
Year: 2019
COI code: ICMCONF01_031
Paper Language: English

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Authors A Low Power Low Noise Amplifier for Ultrasound Imaging Probes

  Samira Firouz - Faculty of Electrical Engineering Sahand University of technology Tabriz, Iran
  Roya jafarnejad - Faculty of Electrical and Computer Engineering University of Tabriz Tabriz, Iran
  Esmael Najafi Aghdam - Faculty of Electrical Engineering Sahand University of technology Tabriz, Iran

Abstract:

This paper presents a Low Noise Amplifier (LNA) for ultrasound imaging probe in a 0.18μm CMOS technology. The proposed LNA receives signals from a capacitive micromachined ultrasound transducer and is based on a Trans-Impedance Amplifier (TIA). By using negative feedback, the trade-off between input matching and transconductance (gm) is broken and the required gm of input transistor is decreased which results in low power consumption. Post layout simulation results show an input impedance of 566 Ω, an input referred current noise of 2.5 pA⁄√Hz and total harmonic distortion (THD) of less than 0.4 %. Trans-impedance gain of 71.5 dBΩ is provided with -3dB bandwidth of 83 MHz. The proposed LNA consumes only 19 μW from a 1 V power supply.

Keywords:

low noise amplifier, trans-impedance amplifier, low power, ultrasound receiver

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COI code: ICMCONF01_031

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Firouz, Samira; Roya jafarnejad & Esmael Najafi Aghdam, 2019, A Low Power Low Noise Amplifier for Ultrasound Imaging Probes, The First Iranian Microelectronics Conference, تهران, انجمن ميكروالكترونيك ايران و پژوهشگاه هوافضا, https://www.civilica.com/Paper-ICMCONF01-ICMCONF01_031.htmlInside the text, wherever referred to or an achievement of this article is mentioned, after mentioning the article, inside the parental, the following specifications are written.
First Time: (Firouz, Samira; Roya jafarnejad & Esmael Najafi Aghdam, 2019)
Second and more: (Firouz; jafarnejad & Najafi Aghdam, 2019)
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The University/Research Center Information:
Type: state university
Paper No.: 3481
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