Industry’s First Octal Ultrasound Receiver with JESD204B Serial Interface …

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NORWOOD, Mass., Oct 08, 2012 (BUSINESS WIRE) —
Devices, Inc. (ADI), the leading provider of data-conversion
technology* and longtime collaborator with the medical imaging industry,
today introduced the industry’s first octal ultrasound receiver to
feature an on-chip JESD204B serial interface. By incorporating the
5-Gbps JESD204B interface, ADI’s new AD9671 octal receiver reduces
ultrasound system I/O data routing by as much as 80 percent compared to
other data interface standards. The resulting savings addresses the
needs of manufacturers designing small, high-performance ultrasound
systems by simplifying ultrasound equipment board design while better
meeting industry demand for higher data rates, larger channel counts and
greater image resolution.

The AD9671 receiver conditions eight channels of data from RF to a
baseband frequency, reducing the processing load on the system FPGA
(field-programmable gate array) by at least 50 percent compared to other
receivers. The AD9671 integrates a low-noise amplifier, variable gain
amplifier, anti-aliasing filter, and a 14-bit A/D converter with the
industry’s highest sample rate (125 MSPS) and SNR (signal-to-noise
ratio) performance (75 dB) for enhanced ultrasound image quality. The
new octal receiver is the latest addition to Analog Devices’ award
winning ultrasound receiver portfolio and is designed for mid- to
high-end portable and cart-based ultrasound systems.

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To learn more about ultrasound and medical imaging applications visit:

“By introducing the first octal ultrasound receiver with a
multi-gigabit, serial data link, we are enabling ultrasound equipment
designers to shrink the number of interconnects between their data
converters and FPGAs,” said Pat O’Doherty, vice president, Healthcare
segment, Analog Devices. “By incorporating the JESD204B serial
interface, the AD9671 receiver not only simplifies PCB design and debug,
it allows manufacturers to continue lowering design costs and reducing
system size while maintaining excellent overall system performance.”

AD9671 Octal Ultrasound Receiver with Digital I/Q Demodulation

As with ADI’s recently released AD9670 octal ultrasound receiver, the
AD9671 integrates a digital I/Q demodulator, programmable-oscillator and
16-tap FIR (finite-impulse response) decimation filter to reduce FPGA
data bandwidth requirements, while additionally combining multiple
channels into a single CML (current-mode logic) data lane. The AD9671
provides a continuous wave (CW) processing path with an analog I/Q
demodulator that has harmonic rejection to the 13th order, which allows
designers to reduce the number of filter components to lower system
cost, reduce design complexity and improve signal sensitivity. The
CW-mode output dynamic range is more than 160 dBc/ a^sHz per channel.

AD9671 Octal Ultrasound Receiver Key Features

5-Gbps serial JESD204B CML interface

Digital I/Q demodulator with programmable oscillator

FIR decimation filter

16 taps per decimation factor

Maximum decimation of 32

14-bit, 125-MSPS A/D converter

SNR: 75 dB

8-channel LNA, VGA, AAF, ADC

Low power:

130-mW/channel @ 40 MSPS in TGC (time gain compensation) mode

55 mW/channel in CW mode

Noise: 0.78 nV/a^sHz typical at 5 MHz (gain = 21.3 dB)

Harmonic rejection to 13th order on CW-Doppler signals

Availability, Pricing and Complementary Components

The AD9671 octal receiver with integrated digital demodulation and
decimation filtering is pin-similar to ADI’s AD9670 octal receivers,
allowing designers to migrate cart-based and portable ultrasound
equipment designs using a common PCB board layout.

         Product      Sample        Full Production    Price each            Packaging
                   Availability                       per 1k units
        -------    ------------    ---------------    ------------    ----------------------
         AD9671    October 2012      December 2012       $75.00       144-ball 10 mm x 10 mm
        -------    ------------    ---------------    ------------    ----------------------

About Analog Devices

Innovation, performance, and excellence are the cultural pillars on
which Analog Devices has built one of the longest standing, highest
growth companies within the technology sector. Acknowledged
industry-wide as the world leader in data conversion and signal
conditioning technology, Analog Devices serves over 60,000 customers,
representing virtually all types of electronic equipment. Analog Devices
is headquartered in Norwood, Massachusetts, with design and
manufacturing facilities throughout the world. Analog Devices is
included in the SP 500 Index.

* Analog
Devices, Inc. leads the worldwide data converter market with
a 48 percent share, according to industry analyst firm Databeans,
Inc. in its market research report titled “2011 Data Converters.” Analog
Devices’ 48 percent share is larger than the combined market share of
the nearest eight competitors.

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SOURCE: Analog Devices, Inc.

        Analog Devices, Inc. 
        Edie Kramer, 781-937-1734 
        Andrew MacLellan, 617-897-8270

Copyright Business Wire 2012


About the Author:

Paul Khunkhun, serving Southern California since 1998. Paul is the owner of MDIS. He is a Board Certified Ultrasound Sonographer with RDCS and RVT credentialing. He is also pending ICAEL accreditation.

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