The AD9776A/AD9778A/AD9779A are dual, 12-/14-/16-bit, high dynamic range digital-to-analog converters (DACs) that provide a sample rate of 1 GSPS, permitting a multicarrier generation up to the Nyquist frequency. They include features optimized for direct conversion transmission applications, including complex digital modulation and gain and offset compensation. The DAC outputs are optimized to interface seamlessly with analog quadrature modulators such as the ADL537x FMOD series from Analog Devices, Inc. A 3-wire interface provides for programming/readback of many internal parameters. Full-scale output current can be programmed over a range of 10 mA to 30 mA. The devices are manufactured on an advanced 0.18 μm CMOS process and operate on 1.8 V and 3.3 V supplies for a total power consumption of 1.0 W. They are enclosed in a 100-lead thin quad flat package (TQFP).
|Title||Content Type||File Type|
|AD9776A/AD9778A/AD9779A: Dual 12-/14-/16-Bit, 1 GSPS, Digital-to-Analog Converters Data Sheet (Rev B, 09/2008) (pdf, 1171 kB)||Data Sheets|
|AN-0974: Multicarrier TD-SCMA Feasibility (pdf, 634 kB)||Application Notes|
|AN-919: AD9779A/AD9788: Guaranteeing PLL Lock Over Temperature (pdf, 74 kB)||Application Notes|
|AN-0996: The Advantages of Using a Quadrature Digital Upconverter (QDUC) in Point-to-Point Microwave Transmit Systems (pdf, 219 kB)||Application Notes|
|AN-912: Driving a Center-Tapped Transformer with a Balanced Current-Output DAC (pdf, 246 kB)||Application Notes|
|CN-0021: Interfacing the ADL5375 I/Q Modulator to the AD9779A Dual-Channel, 1 GSPS High Speed DAC (pdf, 132 kB)||Circuit Note|
|CN-0020: Interfacing the ADL5374 I/Q Modulator to the AD9779A Dual-Channel, 1 GSPS High Speed DAC (pdf, 127 kB)||Circuit Note|
|CN-0019: Interfacing the ADL5373 I/Q Modulator to the AD9779A (pdf, 127 kB)||Circuit Note|
|CN-0018: Interfacing the ADL5372 I/Q Modulator to the AD9779A (pdf, 122 kB)||Circuit Note|
|CN-0017: Interfacing the ADL5371 I/Q Modulator to the AD9779A Dual-Channel, 1 GSPS High Speed DAC (pdf, 122 kB)||Circuit Note|
|CN-0016: Interfacing the ADL5370 I/Q Modulator to the AD9779A Dual-Channel, 1 GSPS High Speed DAC (pdf, 122 kB)||Circuit Note|
|Digital to Analog Converters ICs Solutions Bulletin (pdf)||Solutions Bulletins|
|Digital-to-Analog Converter ICs Solutions Bulletin, Volume 10, Issue 1 (pdf, 1809 kB)||Solutions Bulletins|
|RAQs index||Rarely Asked Questions||HTML|
|Glossary of EE Terms||Glossary||HTML|
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DAC Harmonic Analyzer
This tool displays harmonic images and spurs in a DAC output. The user can define a post-DAC analog filter to suppress these images. The effect of this filter is plotted on the graph and shown in the accompanying chart.
|DAC Harmonic Analyzer||HTML|
|AD9779A IBIS Models (ibs)||IBIS Models||IBS|
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.
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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.