A band-pass delta-sigma modulator for ultrasound imaging at 160 MHz clock rate

被引：13
|
作者：
Norman, O
机构：
[1] Comlinear Corporation, Ft. Collins
来源：
IEEE JOURNAL OF SOLID-STATE CIRCUITS | 1996年 / 31卷 / 12期
关键词：
D O I：
10.1109/4.545828
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A fourth-order band-pass delta-sigma modulator for ultrasound imaging is described, It is implemented in a 0.8-mu m BiCMOS process using switched capacitors, The signal band is centered at 5 MHz and is 2.5 MHz wide, where the modulator's dynamic range is 84 dB at a sampling rate of 160 MHz. Noise shaping can be programmed between band-reject and notch functions for B-mode (wide band) and CW-mode (narrow band) scanning, respectively.
引用
收藏
页码：2036 / 2041
页数：6
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