Octal Receiver For Ultrasound RF

July 25, 2012
The AD9670 octal receiver is touted by Analog Devices as the first ultrasound receiver able to condition eight channels of data from RF to a baseband frequency.
The AD9670 octal receiver is touted by Analog Devices as the first ultrasound receiver able to condition eight channels of data from RF to a baseband frequency. An integrated digital I/Q demodulator, a programmable-oscillator and a 16-tap FIR decimation filter combine to reduce the system FPGA’s data bandwidth requirements. The receiver also provides a continuous wave processing path with an analog I/Q demodulator. A 30 MHz anti-aliasing filter frequency and a 125-MSamples/s A/D converter combine to yield 75 dB SNR for enhanced ultrasound image quality. At 130 mW per channel total power, the receiver is designed for mid- to high-end portable and cart-based ultrasound systems. Pin-similar to the company's AD9278/79 octal receivers, the AD9670 comes packaged in a 144-ball 10 mm x 10 mm BGA. Samples of the AD9670 octal receiver will be available in August with full production slated for October 2012 and pricing set at $69.00 each/1,000.

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