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Integrated front-end receiver for a portable ultrasonic system

机译：用于便携式超声系统的集成前端接收器

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This paper concerns the design, the implementation and the validation of a fully integrated front-end receiver for a portable ultrasonic system. This front-end receiver includes a logarithmic preamplification circuit and followed by a programmable-gain compensator. The proposed building blocks largely amplify small amplitude signals, and moderately the large amplitude ones. They also compensate signal attenuation due to its traveling of several human body tissues. The ultrasonic receiver is implemented in CMOS 0.35 μm technology. Spectre simulations of the front-end receiver show unity gain bandwidth higher than 100 MHz when driving a load of 1 pF. The expected measurements of the fabricated chip are reported. This chip operates at 3.3 V supply voltages, while maintaining wide common mode rejection ratio, high gain and low input offset voltage. The total power consumption is 15.6 mW and the total chip area is 7.2 mm{sup}2 including the digital part needed to program the TGC.
机译：本文涉及用于便携式超声系统的完全集成式前端接收器的设计，实现和验证。该前端接收器包括一个对数前置放大电路，后跟一个可编程增益补偿器。所提出的构造块在很大程度上放大了小幅度信号，并适度放大了大幅度信号。它们还补偿由于其在多个人体组织中传播而引起的信号衰减。超声波接收器采用CMOS 0.35μm技术实现。前端接收机的频谱仿真显示，当驱动1 pF的负载时，单位增益带宽高于100 MHz。报告了所制造芯片的预期测量结果。该芯片在3.3 V电源电压下工作，同时保持宽共模抑制比，高增益和低输入失调电压。总功耗为15.6 mW，总芯片面积为7.2 mm {sup} 2，其中包括对TGC进行编程所需的数字部分。

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