用于3D超声成像系统的新型80V 32x32ch低损耗多路复用LSI

Proceedings. ISPSD '05. The 17th International Symposium on Power Semiconductor Devices and ICs, 2005. Pub Date : 2005-05-23 DOI:10.1109/ISPSD.2005.1488025

K. Hara, J. Sakano, M. Mori, S. Tamano, R. Sinomura, K. Yamazaki

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引用次数: 28

摘要

本文提出了一种80V多路复用LSI的新概念，该LSI具有世界上最大的32次32ch交叉点开关，用于实时3D超声成像系统。这个系统需要几十万个高压电气开关。我们提出了一种新的栅极浮动型模拟开关电路，采用薄栅氧化功率mosfet和低损耗栅极驱动方法。所开发的LSI可以处理15 MHz的+ usmn40v超声信号，功耗低(10mW/LSI)，并且可以在33 MHz的时钟频率下进行第一次扫描操作。开发的lsi组装在一个手探针中，并显示出精细的三维体积图像

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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A New 80V 32x32ch Low Loss Multiplexer LSI for a 3D Ultrasound Imaging System

This paper presents a new concept for an 80V multiplexer LSI with the world's largest 32 times 32ch cross-point switches for a real-time 3D ultrasound imaging system. This system requires hundreds of thousands of high voltage electrical switches. We propose a new gate floating type analog switch circuit with thin gate oxide power MOSFETs and a low-loss gate driving method for this LSI. The developed LSI can handle plusmn40V at 15 MHz ultrasound signal with reasonably low power dissipation (10mW/LSI) and can operate at a 33 MHz clock frequency for the first scanning operation. The developed LSIs are assembled in a hand probe and show a fine 3D volume image

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Proceedings. ISPSD '05. The 17th International Symposium on Power Semiconductor Devices and ICs, 2005.

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