Low Noise, Low Power Variable Gain Amplifier for Ultrasounds

被引：0

作者：

Craciun, Adrian Virgil ^{[1
,2
]}

机构：

[1] Siemens SRL, Siemens Corp Technol, Brasov, Romania

[2] Transilvania Univ Brasov, Elect & Comp Dept, Brasov, Romania

来源：

2017 INTERNATIONAL CONFERENCE ON OPTIMIZATION OF ELECTRICAL AND ELECTRONIC EQUIPMENT (OPTIM) & 2017 INTL AEGEAN CONFERENCE ON ELECTRICAL MACHINES AND POWER ELECTRONICS (ACEMP) | 2017年

关键词：

Ultrasound Amplifier; Variable Gain Amplifier; Low Power;

D O I：

暂无

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：

This paper presents the simulation of a variable gain amplifier from three perspectives: functional, using LTspice circuit simulator; signal- to- noise- ratio, computed with Excel and power consumption, estimated with ACEplorer power simulator. The architectural decisions are taken based on these simulations to meet the following requirements: a dynamic range greater than 60 dB, the frequency domain from 0.1 to 3 MHz, the signal to noise ratio greater than 12 dB (for an input sensitivity better than 50 microvolts), and power consumption lower than 20 mW. The proposed circuit is realized with current feedback amplifiers.

引用

页码：845 / 850

页数：6

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