Octal ultrasound receiver embeds digital demod, cuts processor overhead

摘要

Analog Devices Inc says its AD9670 ultrasound receiver, with embedded demodulation and decimation, can condition eight channels of data from RF to a baseband frequency, reducing the processing load on the system FPGA by at least 50% compared with comparable receivers.The AD9670 integrates a low-noise amplifier; variable-gain amplifier; antialiasing filter; and 125M-sample/sec, 14-bit ADC with SNR performance of 75 dB for enhanced image quality.