Analog Devices’ 256-Channel, 16-Bit Digital X-Ray Analog Front End Delivers Industry’s Best Combination of Noise, Power &...
27 Novembre 2012 - 1:30PM
Business Wire
Analog Devices, Inc., (NASDAQ: ADI), the leading provider of
data conversion technology* and longtime collaborator to the
medical imaging industry, today introduced a highly integrated
digital X-ray analog front end (AFE) with the industry’s lowest
noise performance in multiple power-mode options, and the highest
image quality. The 256-channel ADAS1256 digital X-ray AFE is the
industry’s first single-chip solution to integrate the complete
charge-to-digital conversion signal chain by incorporating
low-noise programmable-charge amplifiers, correlated
double-sampling circuitry and 16-bit A/D converters. With a noise
figure of an equivalent charge of 560 electrons at a 2-picocoulomb
full-scale range, the ADAS1256 enables high resolution digital
X-ray images while reducing patient exposure to X-ray dose. The
ADAS1256 has multiple functional power modes ranging from
1-mW/channel to 3-mW/channel, allowing manufacturers to address a
wide range of digital X-ray modalities including portable radiology
and mammography as well as high speed fluoroscopy and cardiac
imaging.
- Visit the product page and download a
short-form datasheet: http://www.analog.com/ADAS1256
- View complete datasheet and order
evaluation boards by completing a Non-Disclosure Agreement (NDA)
found on the ADAS1256 product page:
http://www.analog.com/ADAS1256
- Learn more about ADI’s digital X-ray
and imaging technologies:
http://healthcare.analog.com/en/imaging/segment/health.html
“Thanks to the ultra-low-noise profile and dynamic range of the
ADAS1256, digital X-ray technology will continue to deliver better
diagnostic image quality and reduce radiation dosage applied to
patients compared to existing digital X-ray systems,” said Pat
O’Doherty, vice president, healthcare group, Analog Devices. “By
achieving this level of performance while adhering to a strict
power budget, the ADAS1256 digital X-ray AFE provides medical
equipment designers with a single device that serves the growing
high-performance requirements of the portable digital X-ray
market.”
About the ADAS1256 Digital X-Ray AFE
The ADAS1256 is a 256-channel, simultaneous sampling, high
dynamic range, low power analog front end that is a complete
charge-to-digital conversion signal chain. It incorporates 256 low
noise integrators, low pass filters, and correlated double samplers
that are multiplexed into a high speed, 16-bit, A/D converter. All
converted channel results are output on a single LVDS (low-voltage
differential signaling) self-clocked serial interface. The ADAS1256
can be programmed using an SPI-compatible daisy-chain serial
interface. It is delivered on a high density system-on-flex (SOF)
package and can be directly mounted on a digital X-ray panel.
ADAS1256 Digital X-Ray AFE Key Features
- Single-chip, 256-channel,
charge-to-digital conversion
- 16-bit resolution with no missing
codes
- Simultaneous sampling
- User adjustable full-scale range up to
32 pC (picocoulombs)
- Ultralow noise: 560 e− at 2pC
range
- Multiple functional power modes: from
1-mW/ch to 3-mW/ch
- Power-down and sleep modes down to
0.005-mW/ch
Pricing, Availability and Complementary
Products
Part Number A/D Converter
Resolution
Channel Count
Unit Price in 1K-piece
Quantities
ADAS1256
16 bits 256 $256
The ADAS1256 is compatible with the ADP7104 and ADP1708 low
dropout linear regulators, ADP1828 synchronous, step-down dc-to-dc
controller, ADR444 voltage reference, ADCLK846 LVDS/CMOS fanout
buffer and ADXL345 MEMS digital accelerometer.
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. Celebrating over 40 years as a leading global
manufacturer of high-performance integrated circuits used in analog
and digital signal processing applications, 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.
* 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.
Follow ADI on Twitter at http://www.twitter.com/ADI_News
To subscribe to Analog Dialogue, ADI's monthly technical
journal, visit: http://www.analog.com/subscribe.
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