ANALOG DEVICES’ JESD204A DATA CONVERTERS REDUCE POWER AND BOARD SPACE IN HIGH-SPEED DATA AND COMMUNICATIONS APPLICATIONS

- Expanding ADI’s JESD204 data converter portfolio, 14-bit analog-to-digital converters increase signal fidelity and simplify board layout in wireless infrastructure and data acquisition equipment.
AD9644/AD9641, low-power, high-speed 14-bit ADCs incorporating the JESD204A standard

Norwood, MA (07/28/2010) - Analog Devices, Inc. (ADI) announced today a pair of low-power, high-speed 14-bit ADCs (analog-to-digital converters) that incorporate the JESD204A data converter serial interface standard. The JESD204A standard was developed to allow designers of high-speed communications and data acquisition systems to extend transmission lengths while improving signal integrity and simplifying printed-circuit board layout. The AD9644 dual and AD9641 14-bit 80MSPS (mega samples per second) ADCs use half the power of competing products and 25 percent less board area further expanding ADI’s portfolio of high-speed ADCs supporting the JESD204A standard.

The JESD204A industry serial interface standard reduces the number of data inputs/outputs between data converters and other devices, such as FPGAs (field-programmable gate arrays). Fewer interconnects simplifies layout and allows smaller form factor realization without impacting overall system performance. These attributes are important for a range of high-speed applications, including portable instrumentation, ultrasound equipment, radar, wireless infrastructure (GSM, EDGE, W-CDMA, LTE, CDMA2000, WiMAX, TD-SCDMA), and software-defined radios. For more information about the AD9644 dual 14-bit ADC, go to http://www.analog.com/pr/AD9644 or to learn more about the AD9641 ADC, go to http://www.analog.com/pr/AD9641.

About the AD9644 Dual 14-bit 80MSPS with JEDS204A Interface
The AD9644 consumes 423 mW at 80 MSPS and features a multi-stage, differential-pipelined architecture with integrated output error correction logic. At 70 MHz and 80 MSPS, the AD9644 achieves an SNR (signal-to-noise ratio) of 73.7 dBFS and an SFDR (spurious-free dynamic range) of 92 dBc. The JESD204A coded data rate supports up to 1.6 Gbps per link and the AD9644 offers two output modes supporting a dedicated data link per ADC channel or a single shared data link for both ADC channels. Wide bandwidth differential sample-and-hold analog input amplifiers support a variety of user-selectable input ranges while an integrated voltage reference eases design considerations. A duty cycle stabilizer is provided to compensate for variations in the ADC clock duty cycle, allowing the converters to maintain excellent performance. The AD9644 is available in a 48-lead LFCSP (7 mm x 7 mm) and is specified over the industrial temperature range of -40°C to +85°C.

AD9644 Dual 14-bit ADC Key Features

  • 80 MSPS Sample Rates
  • 14-Bit Resolution
  • Two configurable serial outputs
  • SNR: 73.7 dBFS at 70 MHz and 80 MSPS
  • SFDR: 92 dBc at 70 MHz and 80 MSPS
  • Low power: 212 mW/channel at 80 MSPS
  • Single 1.8-V supply operation

As part of a complete signal chain, the AD9644 and AD9641 can be used with amplifiers, VGAs and clock drivers such as the ADL5562 3.3 GHz ultralow -distortion RF/IF differential amplifier, ADA4937-2 ultralow -distortion differential ADC driver, AD8372 programmable dual VGA, AD9510 clock distribution IC and AD9520 CMOS output clock generator with integrated VCO.

Pricing and Availability

Product Sample
Availability
Resolution
(Bits)
Data Rate
(MSPS)
Price Each
Per 1,000
Packaging
AD9644 Dual Now 14 80 $37.00 48-lead LFCSP
7 mm x 7 mm
AD9641 Single Now 14 80 $26.35 32-lead LFCSP
5 mm x 5 mm

More Information, Samples and Tools

Data Converters: Bridging the Analog and Digital Worlds
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 ADCs (analog-to-digital converters) and DACs (digital-to-analog converters), Analog Devices’ converter products feature the right combination of sampling rates and accuracy with low noise, power, and price and small package size required by industrial, medical, automotive, communications, and consumer electronics. Online 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 http://http://www.analog.com/ADCsearch. For ADC drivers, visit http://www.analog.com/ADC-Drivers. To view ADI’s DAC selection guide, visit http://www.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. 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.

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Editor's Contact Information:

Bob Olson
781/937-1666

bob.olson@analog.com

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