Analog Devices Introduces Eight High-Speed, Low-Power Digital-To-Analog Converters

"With the industry increasingly focused on efficiency and portability, design engineers are being squeezed to reduce power consumption and board space in their designs," said David Robertson, product line director for the High Speed Signal Processing group, Analog Devices. "Whether they're designing femtocell base stations, battery-powered instrumentation or medical applications, designers are looking for new DAC products that will help them meet their space and power budgets, without sacrificing performance."

Low Power, Integration and Flexibility

Each new TxDAC integrates two 14-, 12-, 10- or 8-bit digital-to-analog converters with sample rates up to 125 MSPS (mega-samples-per-second). These devices allow designers to adjust the full-scale current from 1 to 4 mA or 4 to 20 mA with a single, pin-compatible architecture and common software code.

The AD971x TxDAC series features 1- to 4-mA maximum differential output current. Power dissipation at 2 mA output current is only 37 mW at 10 MSPS and 53 mW at 50 MSPS. This is one-third that of competing transmit DACs, making the new series ideal for small, limited range wireless equipment, such as picocell and femtocell base stations and battery-powered medical, industrial and instrumentation applications.

The AD911x TxDAC series has 4- to 20-mA maximum differential output current. It dissipates 40 percent less power than other devices in its class and is suited to automotive, medical, instrumentation and communications applications where channel densities must be maximized without the addition of cooling fans or where environmental considerations are driving a reduction in power consumption. The AD911x devices achieve 85-dB SFDR to 10 MHz, which is superior to other devices in its class.

Despite their small 6 mm x 6 mm package size, the new DACs are loaded with performance features, such as an internal calibrator for improved INL and DNL performance up to a 10-MHz output frequency, an internal voltage reference, independent full-scale current control, on-chip load and common-mode resistors, and a pair of auxiliary DACs that can be used for generating control voltages or for system calibration.

The new TxDAC devices offer a seamless interface to ADI's high-performance quadrature modulators, such as the ADL5370. If a single-ended or differential-buffered voltage output is needed, then the ADA4899-1 and ADA4841-2 operational amplifiers are excellent choices, respectively. Additionally, Analog Devices' high speed converters, such as the AD911x TxDAC family, are designed to operate seamlessly with ADI's AD9513 clock distribution IC and new line of voltage regulators, including the ADP3334 and ADP3333.

Pricing and Availability

The TxDACs are available now in volume production. The devices come in a small, 6 mm A- 6mm, Pb-free, 40-lead LFCSP (lead-frame chip-scale package). For more information, visit http://http://www.analog.com/pr/AD971x.

Part Number Resolution Power Dissipation (mW) 1K-unit Pricing AD9117BCPZ 14-bit 220 $9.50 AD9116BCPZ 12-bit 220 $8.75 AD9115BCPZ 10-bit 220 $6.90 AD9114BCPZ 8-bit 220 $5.95 AD9717BCPZ 14-bit 86 $9.50 AD9716BCPZ 12-bit 86 $8.75 AD9715BCPZ 10-bit 86 $6.90 AD9714BCPZ 8-bit 86 $5.95

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, medical 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. To view ADI's ADC selection guide, visit www.analog.com/ADCsearch. For ADC drivers, visit: http://www.analog.com/adcdrivers. To view ADI's DAC selection guide, visit w.analog.com/DACsearch.

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

TxDAC is a registered trademark of Analog Devices, Inc.

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SOURCE: Analog Devices, Inc.

Analog Devices, Inc. Sue Martenson, 781-937-1989 sue.martenson@analog.com or Porter Novelli Andrew MacLellan, 617-897-8270 andrew.maclellan@porternovelli.com