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Analog Devices Announces Industry’s First Data Converter with Dynamic Power Control

Tue, 07/06/2010 - 6:17am

ADI-AD5755Advances in factory automation, process controls, and industrial instrumentation are contributing to higher manufacturing productivity and increased output. The sustainability of such advances is under threat, however, as the density of factory process control systems reaches levels where rising power consumption and thermal issues are beginning to undermine equipment performance, reliability, and safety. Analog Devices, Inc. today introduced a multichannel DAC (digital-to-analog converter) with innovative dynamic power control circuitry including ADI’s leading dc-to-dc switching converters and diagnostic features. This new DAC can enable increased system productivity, while simultaneously lowering power use without affecting safety and reliability. Watch the AD5755 DAC video for more information on its features.

Dynamic Power Control Reduces Power Loss and Self-Heating

ADI’s highly integrated AD5755 data converter is a complete, multichannel control IC (integrated circuit) that incorporates four precision 16-bit DACs with programmable voltage or 4–20-mA output drivers, along with dynamic power control. The dynamic power control feature works by continually sensing the load impedance and delivering the required power to the load while minimizing power loss in the rest of the system. This reduces self-heating and temperature elevation. The unparalleled combination of features and performance supports four times more channels than any other integrated converter, enabling up to four times more terminals at twice the performance in a single analog I/O module. The new converter also lowers power consumption by 80 percent and net thermal rise (silicon temperature minus ambient temperature) by 75 percent compared to other control driver technologies.

“Increased terminal density puts pressure on module size and can result in extra heat generation in industrial systems,” said Mike Britchfield, vice president for the Industrial and Instrumentation Group, Analog Devices. “By reducing power consumption and self-heating, the dynamic power control function of the AD5755 meets customer requirements for increased channel density. This allows manufacturers to achieve channel-rich designs without having to increase the form factor of their systems or back–off on other performance parameters.”

More on the AD5755 Data Converter

The 16-bit AD5755 offers a full channel spec with a maximum total unadjusted error of 0.05 %, a relative accuracy of ±0.003% max, and does not require system calibration, which shortens development time and reduces system maintenance costs. In addition, the single chip architecture combines multiple converters, power management, linear and other functions, increasing MTTF (mean time to failure) and improving reliability. Also included are various diagnostics for real-time fault analysis, including communication, connection, and interface alerts, which simplify the design task and boost operational up-time.

The device, which supports standard industrial voltage and current output ranges, can be used with standard HART (Highway Addressable Remote Transducer) protocol modems. Also integrated on-chip is a 5-ppm/°C internal reference, user-accessible offset and gain registers and a 30-MHz SPI (serial peripheral interface) compatible interface. The device is specified over the extended industrial temperature range of –40°C to +105°C and is housed in a 9 mm × 9 mm LFCSP (lead-frame chip scale package). To download the data sheet, click here.

Availability, Pricing, Complementary Products

The AD5755, which is sampling now, works well in conjunction with ADI’s other high performance components for industrial applications, including the AD779x and AD7190 ADCs (analog-to-digital converters), AD5421 (loop-powered 4–20-mA DAC), ADuC706x precision analog microcontroller, ADR44x voltage reference and ADUM140x, ADuM540x iCoupler® digital isolators. Additional complementary components include the ADP2300 step-down switching regulator, ADP1621 step-up dc-to-dc converter, ADP125 low dropout linear regulator and ADIsimPower™ design tool.

Product      

Description

     

Temperature
Range

     

Price
Per
1,000

      Package      

AD5755

     

16-Bit, V/I Output,
Dynamic Power Control

      –40°C to +105°C       $13.35       64-lead LFCSP

9 mm × 9 mm

     

AD5755-1

     

16-Bit, V/I Output,
Dynamic Power Control,
HART Connectivity

     

–40°C to +105°C

      $13.06       64-lead LFCSP

9 mm × 9 mm

     

AD5757

     

16-Bit, I Output,
Dynamic Power Control

      –40°C to +105°C       $11.56       64-lead LFCSP

9 mm × 9 mm

     

To order samples, click here. For more product information on the AD5755 visit: http://www.analog.com/pr/AD5755. For more information on ADI’s process control and industrial automation products visit: http://processcontrol.analog.com/en/segment/pcia.html.

Industry’s Leading Converter Portfolio

More designers turn to Analog Devices than any other supplier for the high-performance conversion technology required to bridge the analog and digital worlds in today’s myriad electronic systems. With the industry’s leading portfolio of analog-to-digital converters and digital-to-analog converters, Analog Devices’ converter products feature the right combination of sampling rates, accuracy and reduced noise, power dissipation, price and package size required in industrial and instrumentation, healthcare equipment, automotive systems, communications infrastructure, and consumer electronics. Evaluation tools help customers quickly validate, select, and design in the optimal data converters to reduce design complexity, development schedules, and bill-of-material costs.

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' 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.

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