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Analog Devices Press Release - December 5, 2011

Analog Devices Announces System-Ready D/A Converters Combine Accuracy
with Integrated Precision Reference Conditioning Circuitry

-- 20-bit AD5790 and 18-bit AD5780 D/A converters provide stability and ultra-low noise
   needed to increase accuracy of instrumentation equipment.

Visit Analog Devices

NORWOOD, Mass.--(BUSINESS WIRE)-- Analog Devices, Inc. (NYSE: ADI), the leading provider of data conversion technology*, today introduced D/A (digital-to-analog) converters that provide high accuracy and ultra-low noise, simplifying the design of precision instrumentation and analytical equipment. The new high-accuracy D/A converters incorporate integrated precision reference conditioning circuitry, making them system ready and providing a 60 percent reduction in board space compared to competing standalone data converters. The high linearity and low noise of the AD5790 and AD5780 D/A converters reduce the need to calibrate systems for nonlinearity or to time-average multiple measurements. The high stability and low drift of the converters over time and temperature reduce the need to compensate systems for aging and temperature effects. These features combine to significantly improve repeatability, reduce system downtime, and lower system maintenance costs. Precision analog system design often entails the complex engineering challenges of combining a precision D/A converter with a significant amount of signal conditioning and support circuitry to eliminate nonlinearity, minimize thermoelectric and noise sources, and reduce offset errors. The integrated precision reference buffers incorporated into the AD5790 and AD5780 D/A converters significantly simplify this development effort for high-end systems, simultaneously reducing performance risk and design cycles.

“Enhancements in data conversion allow instrumentation system designers to develop, characterize and test next-generation electronic measurement equipment,” said Mike Britchfield, vice president, Industrial and Instrumentation Group, Analog Devices. “The AD5790 and AD5780 D/A converters establish new benchmarks in precision by respectively combining 20-bit and 18-bit performance, ultra-low noise, and integrated precision reference conditioning circuitry in a single device to enable complex applications in a wide range of industries.”

AD5790 and AD5780 D/A Converters Achieve 9-nV/rt-Hz Noise Spectral Density
The AD5790 D/A converter offers ±2-LSB accuracy at 20-bit, while the AD5780 features ±1-LSB accuracy at 18-bit over temperature. Guaranteed monotonic, the devices specify –1-LSB max DNL. The AD5790 and AD5780 D/A converters feature 1.1-µV peak-to-peak, low-frequency output noise, 9-nV/rt-Hz noise spectral density and less than 0.05-ppm/°C temperature drift. The output can be configured for standard unipolar (+5 V, +10 V) or bipolar (±5 V, ±10 V) output ranges. The devices, which use a versatile three-wire serial interface that operates at clock rates up to 50 MHz, feature a 2.5-µs analog update rate. The AD5790 and AD5780 D/A converters are fully specified over the extended temperature range of –40º C to +125º C.

Recommended Complementary Components
Complementary components for the AD5790 and AD5780 D/A converters include the AD8675 and ADA4004-x series of operational amplifiers, ADP3331 voltage regulator, ADP1864 step-down dc-to-dc controller, and ADP121 linear regulator.

Pricing and Availability

Analog Devices AD5790 converter pricing

For information on ADI’s D/A converter products, visit http://www.analog.com/DACs.

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. 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' common stock is listed on the New York Stock Exchange under the ticker “ADI” and is included in the S&P 500 Index. http://www.analog.com

*Analog Devices, Inc. leads the worldwide data converter market with a 46 percent share, according to industry analyst firm Databeans, Inc. in its market research report titled "2010 Data Converters." Analog Devices' 46 percent share is larger than the combined market share of the nearest eight competitors.

Explore technical fundamentals and design considerations for various aspects of the data conversion function. Visit ADI’s Data Conversion Knowledge Resource web page: http://www.analog.com/en/data-conversion-knowledge-resource/conversions/index.html

Connect with engineers and ADI product experts on EngineerZone™, an online technical support community: http://ez.analog.com

Follow ADI on Twitter at http://www.twitter.com/ADI_News Subscribe to Analog Dialogue, ADI’s monthly technical journal, at: http://www.analog.com/library/analogDialogue/subscribe.html

Analog Devices, Inc.
Linda Kincaid


Porter Novelli
Andrew MacLellan

Date Posted  12/5/2011br>

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