| 发明名称 |
CURRENT MODE CLASS AB LOW-NOISE AMPLIFIER AND METHOD OF ACTIVE CABLE TERMINATION |
| 摘要 |
This invention relates to medical ultrasonic imaging systems and, in particular, phased array imaging systems operating in different scan formats and imaging modalities. More specifically, the invention relates to the front-end processing of ultrasonic echoes. |
| 申请公布号 |
US2015091646(A1) |
申请公布日期 |
2015.04.02 |
| 申请号 |
US201314042361 |
申请日期 |
2013.09.30 |
| 申请人 |
Supertex, Inc. |
发明人 |
Shifrin Lazar |
| 分类号 |
H03F3/21;H03F3/26;H03F3/45;H03F3/193 |
主分类号 |
H03F3/21 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A low-noise amplifier (LNA) for receiving ultrasonic echo signals from a piezo-electric transducer via a coaxial cable having different characteristic impedance said LNA comprising: an input terminal, an output terminal, and a transconductor circuit sequentially connected to a current-to-voltage (I-to-V) converter, wherein the transconductance parameter of said transconductor circuit is operable to match the characteristic impedance of the cable. |
| 地址 |
Sunnyvale CA US |
