ANALOG DEVICES ADVANCES ULTRASOUND SYSTEM DESIGN WITH LOW-POWER RECEIVER ICS

Octal ultrasound receivers integrate ADI's world-leading data conversion technology to provide the highest output-referred SNR; new devices offer exceptional quality ultrasound signals while reducing board space by up to 40 percent.
AD9278/AD9279 Press Release

Norwood, MA (11/08/2010) - Analog Devices, Inc., (NYSE:ADI), the leading provider of data-conversion technology and longtime collaborator with the medical imaging industry, today launched the fourth generation of its award-winning octal (eight-channel) ultrasound receivers with the introduction of two new ICs that reduce system size, complexity, and power consumption for high-end, mid-range, and portable ultrasound systems. The need for smaller, faster, lower-power ultrasound equipment continues to grow as hospitals, medical clinics, and medical emergency units increasingly rely on more sophisticated ultrasound equipment for providing diagnostic imaging. InMedica, the medical research division of IMS Research, predicts worldwide ultrasound revenues will grow from $4.9 billion in 2009 to more than $6 billion by 2012.

The new AD9278 and AD9279 receiver chips each integrate ADI's world-leading data conversion technology for low noise TGC (time-gain-control) mode performance while providing high dynamic range I/Q demodulators that reduce the power and area for implementation of CW (continuous wave) Doppler processing. The new octal ultrasound receivers provide the highest available output-referred large-signal SNR--up to 67 dB--enabling improved sensitivity in diagnostic ultrasound systems while reducing board space up to 40 percent.

"Ultrasound equipment designers must continually balance new and changing demands for higher image quality and increased power efficiency," said Patrick O'Doherty, vice president for the Healthcare Group, Analog Devices. "The new AD9278 and AD9279 octal ultrasound receivers help system designers manage the design challenges inherent in trying to get the best image quality at the lowest power for either high-end or portable systems."

The AD9278 octal ultrasound receiver is designed for portable ultrasound systems while the AD9279 octal ultrasound receiver is suitable for high-end and mid-range systems. The devices are pin- and package-compatible with each other and allow designers to use a common PCB (printed circuit board) layout that can be leveraged across multiple ultrasound platforms to save development time and cost.

Products in Analog Devices' octal ultrasound receiver portfolio include the AD9271, which, when unveiled in April 2007, was the first device to integrate a complete octal ultrasound receiver on a single chip, and is used today in ultrasound equipment throughout the world. Other octal ultrasound receivers include the AD9272 for high-and mid-range cart-based ultrasound equipment, AD9273 for portable ultrasound systems, and the AD9276 and AD9277 that enable high-quality CW (continuous wave) Doppler processing.

AD9728 and AD9279 Octal Ultrasound Receivers Key Features and Benefits

The new AD9278 and AD9279 octal ultrasound receivers feature a variable gain range of 45 dB, a fully differential signal path, an active input preamplifier termination, a maximum gain of up to 52 dB, and an ADC (analog-to-digital converter) with a conversion rate of up to 80 MSPS. Each device is optimized for dynamic performance and low-power operation in applications where a small package size is critical. In CW mode, the AD9278 features ultra-low power consumption of 25 mW per channel, while the AD9279 offers low power consumption of 50 mW per channel. In TGC mode, the AD9278 consumes only 88 mW per channel at 40 MSPS, and the AD9279 consumes only 139 mW per channel at 40 MSPS. For high-end systems, the AD9279 offers a highly configurable LNA featuring low input-referred noise density of 0.67 nV/√Hz. Download the AD9278 or AD9279 data sheet.

Additional features and benefits include:

  • Eight channels offering full TGC path, ADC, and I/Q demodulator contained within a 144-ball, 10-mm × 10-mm BGA (ball grid array) package
  • Integrated high dynamic range I/Q demodulator with programmable phase rotation
  • A data clock output that operates up to 480 MHz and supports double data rate operation
  • SPI (serial port interface) control offering a wide range of flexible features to enable specific power, noise, distortion, and gain optimization needed for all imagining modes
  • Integrated second-order anti-aliasing filter placed before the ADC and programmable from 8 MHz to 18 MHz
  • Fast, repeatable overload recovery

Recommended Complementary Components

Complementary components for the AD9278 and AD9279 octal ultrasound receivers include ADI's AD8021 low-noise, high-speed amplifier; ADA4841-2 low-power distortion amplifier; AD7982 18-bit, 1 MSPS PulSAR® ADC; ADR433 3.0-V ultra-low-noise voltage reference; AD9516 clock generator; AD9520 clock generator; and ADCLK946 and ADCLK846 clock fanout buffers.

Pricing and Availability

Product Production Release Price Each In 1,000 Packaging
AD9278 Now $58 10-mm × 10-mm BGA
AD9279 Now $62 10-mm × 10-mm BGA
AD9278-50EBZ Now $250 per unit in single unit quantities --
AD9279-65EBZ Now $250 per unit in single unit quantities --
AD9279-80KITZ Now $1,100 per unit in single unit quantities --

The new octal ultrasound receivers, along with other ADI offerings, represent the industry's broadest IC product portfolio gear specifically toward the healthcare imaging market. Other healthcare announcements from ADI include the AD5791 high-accuracy, 20-bit DAC (digital-to-analog converter) for MRI (magnetic resonance imaging) systems, the ADAS1128 24-bit current-to-digital converter for CT (computed tomography) systems, and the ADuM4160 single-chip USB isolator for system-critical medical equipment.

Making a Difference for Healthcare Customers

Analog Devices offers healthcare customers a comprehensive portfolio of linear, mixed-signal, MEMS and digital signal processing technologies for medical imaging, patient monitoring, medical instrumentation and consumer/home healthcare. Backed by leading design tools, applications support, and systems expertise, ADI's products and technologies enable differentiation in healthcare designs - helping shape the future of diagnostics and monitoring equipment, as well as health and wellness devices. ADI's healthcare offerings can be found at www.analog.com/healthcare.

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 S&P 500 Index.

Subscribe to ADI's News Feed.

Follow ADI on: http://www.twitter.com/ADI_News.

Editor's Contact Information:

Linda Kincaid
Tel: 781/937-1472

linda.kincaid@analog.com

沪ICP备09046653号
Send Feedback X
content here.
content here.

Send Feedback

Close