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AD9788:  Dual 16-Bit 800 MSPS DAC with Low Power 32-Bit Complex NCO

Product Details


The AD9785/AD9787/AD9788 are 12-bit, 14-bit, and 16-bit, high dynamic range TxDAC® devices, respectively, that provide a sample rate of 800 MSPS, permitting multicarrier generation up to the Nyquist frequency. Features are included for optimizing direct conversion transmit applications, including complex digital modulation, as well as gain, phase, and offset compensation. The DAC outputs are optimized to interface seamlessly with analog quadrature modulators, such as the ADL537x family from Analog Devices, Inc. A serial peripheral interface (SPI) provides for programming and readback of many internal parameters. Full-scale output current can be programmed over a range of 10 mA to 30 mA. The AD978x family is manufactured on a 0.18 μm CMOS process and operates from 1.8 V and 3.3 V supplies. It is enclosed in a 100-lead TQFP package.

Product Highlights

  1. Low noise and intermodulation distortion (IMD) enable high quality synthesis of wideband signals from baseband to high intermediate frequencies.
  2. Proprietary DAC output switching technique enhances dynamic performance.
  3. CMOS data input interface with adjustable setup and hold.
  4. Low power complex 32-bit numerically controlled oscillators (NCOs).

Applications

  • Wireless infrastructure
    WCDMA, CDMA2000, TD-SCDMA, WiMAX, GSM
  • Digital high or low IF synthesis
  • Transmit diversity
  • Wideband communications
    LMDS/MMDS, point-to-point

FEATURES and BENEFITS

  • Analog output: adjustable 8.7 mA to 31.7 mA, RL = 25 Ω to 50 Ω
  • Low power, fine complex NCO allows carrier placement anywhere in DAC bandwidth while adding <300 mW power
  • Auxiliary DACs allow I and Q gain matching and offset control
  • Includes programmable I and Q phase compensation
  • Internal digital upconversion capability
  • Multiple chip synchronization interface
  • High performance, low noise PLL clock multiplier
  • Digital inverse sinc filter
  • 100-lead, exposed paddle TQFP package

AD9788 Functional Block Diagram

For evaluation of all Analog Devices High Speed DAC components you will need to purchase or loan a Data Pattern Generator. To find out more information please click here.

Design Tools,Models,Drivers & Software

Title Content Type File Type
AD9788 IBIS Model  (ibs) IBIS Models IBS
AD9788/7/5-DPG2 FMC Interposer & Evaluation Board / Xilinx ML-605 Reference Design FPGA HDL HTML

Evaluation Kits & Symbols & Footprints

Evaluation Boards & KitsView the Evaluation Boards and Kits page for documentation and purchasing

Symbols and Footprints— Analog Devices offers Symbols & Footprints which are compatible with a large set of today’s CAD systems for broader and easier support.

Product Recommendations & Reference Designs

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Companion Products

Suggested Companion Products


Recommended Quadrature Modulators for the AD9788 Recommended I/V Amplifier for the AD9788 Recommended Clock Drivers for the AD9788 Recommended Step Down DC-to-DC Regulators for the AD9788
  • For powering the individual rails, we recommend the ADP2105.
  • For multichannel applications, we recommend the ADP2106 or the ADP2107.
Recommended Power Solutions
  • For selecting voltage regulator products, use ADIsimPower.

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Price, packaging, availability

AD9788 Model Options
Price Table Help

The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.

AD-DAC-FMC-ADP
Model Description Price RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
AD-DAC-FMC-ADP Status: Production FMC to High-Speed DAC Evaluation Board Adaptor $125.00 Yes -
AD9788 Evaluation Board
Model Description Price RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
AD9788-DPG2-EBZ Status: Production Evaluation Board $300.00 Yes -

Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.

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