ADI AD9277低成本低功耗医疗超声解决方案

ADI公司的AD9277是低成本低功耗小型容易使用的8路14位ADC,包括8路可变增益放大器(VGA)和低噪音放大器(LNA),抗混淆滤波器(AAF)和14位10MSPS到50MSPS本世纪末ADC以及可编相位旋转的I/Q解调器,主要用在医疗图像和超声波图像以及汽车雷达.本文介绍了AD9277主要特性和产品亮点,方框图, 超声波系统方框图以及AD9277评估板主要特性,评估板连接图,电路图,PCB布局图和材料清单.此外还介绍了ADI医疗超声解决方案方框图和信号链接图.

The AD9277 is designed for low cost, low power, small size, and ease of use. It contains eight channels of a variable gain amplifier (VGA) with a low noise preamplifier (LNA); an anti-aliasing filter (AAF); a 14-bit, 10 MSPS to 50 MSPS analog-to-digital converter (ADC); and an I/Q demodulator with programmable phase rotation.

Each channel features a variable gain range of 42 dB, a fully differ-ential signal path, an active input preamplifier termination, a maximum gain of up to 52 dB, and an ADC with a conversion rate of up to 50 MSPS. The channel is optimized for dynamic performance and low power in applications where a small package size is critical.
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