Features and Benefits
- 400+ MSPS DAC Update Rate
- Low Voltage Differential Signaling (LVDS) Compatible Inputs
- Built-In 100 Ω termination resistors
- Single Data Rate (SDR) and Double Data Rate (DDR) Capability
- Versatile Clock and Data Interface
- Noise Floor Performance: < –160 dBm/Hz @ fOUT = 70 MHz
- IMD > 80 dBc to 80 MHz: > -80 dBc
- Selectable Data Format: Twos Complement or Straight Binary
- Programmable via SPI Port
The AD9726 is a 16-bit high performance LVDS DAC that offers exceptional noise and spurious performance and true 16-bit dc linearity. Manufactured on a CMOS process, the AD9726 uses a proprietary switching technique that enhances dynamic performance. A wide full-scale current adjustment span of 2 mA to 20 mA allows the AD9726 to operate at reduced power levels. The current output(s) of the AD9726 can be easily configured for various single-ended or differential circuit topologies.
The AD9726 leverages the latest TxDAC+ core technology found in the AD9786 product family to achieve industry-leading noise and intermodulation distortion (IMD) performance. This record-breaking performance allows synthesis of multicarrier transmit signals at intermediate frequencies (IFs) of 140 MHz and beyond. As a result, system designers can eliminate an up-conversion stage and reduce overall parts count, ultimately lowering total system cost. Alternatively, the high conversion rate enables wideband signal synthesis.
TxDAC+ is registered trademark of Analog Devices.
- Test equipment
- Waveform synthesis
- Communications system
Product Lifecycle Not Recommended for New Designs
This designates products ADI does not recommend broadly for new designs.
Evaluation Kits (1)
The AD9726 evaluation board provides a platform for evaluating the performance of the device. To operate the board, the user must apply power, a clock source, a digital data source, and be able to observe the DAC output on either a spectrum analyzer or an oscilloscope. A low jitter sine or square wave clock will work well as a source. The evaluation board comes with software which allows the user to program the SPI port. Via the SPI port, the DUT can be programmed into any of its various operating modes.
Documentation & Resources
AN-808: Multicarrier CDMA2000 Feasibility (Rev. 0)11/9/2007
AN-912: Driving a Center-Tapped Transformer with a Balanced Current-Output DAC (Rev. 0)5/21/2007
AN-834: AD9786/AD9726 Calibration Engine (Rev. 0)2/27/2006
AN-320A: CMOS Multiplying DACs and Op Amps Combine to Build Programmable Gain Amplifier, Part 110/15/2004
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.
Sample & Buy
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Buy Now Pricing
(**) Displayed Buy Now Price and Price Range is based on small quantity orders.
(*)The 1Ku 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. authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.
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