AD9709
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AD9709

8-Bit, 125 MSPS Dual TxDAC+ Digital-to-Analog Converter

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Info: : PRODUCTION tooltip
Info: : PRODUCTION tooltip
Part Details
Part Models 2
1ku List Price Starting From $7.96
Features
  • 8-bit dual transmit digital-to-analog converter (DAC)
  • 125 MSPS update rate
  • Excellent SFDR to Nyquist @ 5 MHz output: 66 dBc
  • Excellent gain and offset matching: 0.1%
  • Fully independent or single-resistor gain control
  • Dual port or interleaved data
  • On-chip 1.2 V reference
  • See Data Sheet for Additional Information
Additional Details
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The AD9709 is a dual-port, high speed, 2-channel, 8-bit CMOS DAC. It integrates two high quality 8-bit TxDAC+® cores, a voltage reference, and digital interface circuitry into a small 48-lead LQFP package. The AD9709 offers exceptional ac and dc performance while supporting update rates of up to 125 MSPS.

The AD9709 has been optimized for processing I and Q data in communications applications. The digital interface consists of two double-buffered latches as well as control logic. Separate write inputs allow data to be written to the two DAC ports independent of one another. Separate clocks control the update rate of the DACs

A mode control pin allows the AD9709 to interface to two separate data ports, or to a single interleaved high speed data port. In interleaving mode, the input data stream is demuxed into its original I and Q data and then latched. The I and Q data is then converted by the two DACs and updated at half the input data rate.

The GAINCTRL pin allows two modes for setting the full-scale current (IOUTFS) of the two DACs. IOUTFS for each DAC can be set independently using two external resistors, or IOUTFS for both DACs can be set by using a single external resistor. See the Gain Control Mode section for important date code information on this feature.

The DACs utilize a segmented current source architecture combined with a proprietary switching technique to reduce glitch energy and to maximize dynamic accuracy. Each DAC provides differential current output, thus supporting single-ended or differential applications. Both DACs can be simultaneously updated and provide a nominal full-scale current of 20 mA. The full-scale currents between each DAC are matched to within 0.1%.

The AD9709 is manufactured on an advanced low-cost CMOS process. It operates from a single supply of 3.3 V or 5 V and consumes 380 mW of power.

PRODUCT HIGHLIGHTS

  1. The AD9709 is a member of a pin-compatible family of dual TxDACs providing 8-, 10-, 12-, and 14-bit resolution.
  2. Dual 8-Bit, 125 MSPS DACs. A pair of high performance DACs optimized for low distortion performance provide for flexible transmission of I and Q information.
  3. Matching. Gain matching is typically 0.1% of full scale, and offset error is better than 0.02%.
  4. Low Power. Complete CMOS dual DAC function operates at 380 mW from a 3.3 V or 5 V single supply. The DAC full-scale current can be reduced for lower power operation, and a sleep mode is provided for low power idle periods.
  5. On-Chip Voltage Reference. The AD9709 includes a 1.20 V temperature-compensated band gap voltage reference.
  6. Dual 8-Bit Inputs. The AD9709 features a flexible dual-port interface, allowing dual or interleaved input data.

APPLICATIONS

  • Communications
  • Base stations
  • Digital synthesis
  • Quadrature modulation
  • 3D ultrasound
  • Part Models 2
    1ku List Price Starting From $7.96

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    Documentation

    Documentation

    Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
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    AD9709ASTZRL
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    Product Lifecycle

    PCN

    Dec 7, 2016

    - 16_0033

    Assembly Relocation to Stats ChipPAC Jiangyin and Test Transfer to Stats ChipPAC Singapore of Select QFP Products

    Jan 5, 2009

    - 07_0077

    Certification of STATSChipPAC Shanghai, China and AMKOR Philippines as additional sources for Assembly & Test of QFP Packages

    Filter by Model

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    Reset Filters

    Part Models

    Product Lifecycle

    PCN

    Dec 7, 2016

    - 16_0033

    arrow down

    Assembly Relocation to Stats ChipPAC Jiangyin and Test Transfer to Stats ChipPAC Singapore of Select QFP Products

    Jan 5, 2009

    - 07_0077

    arrow down

    Certification of STATSChipPAC Shanghai, China and AMKOR Philippines as additional sources for Assembly & Test of QFP Packages

    Software and Part Ecosystem

    Software and Part Ecosystem

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    Evaluation Kit

    Evaluation Kits 2

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    EVAL-AD9767

    AD9765/63/09 Evaluation Board

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    SDP-H1

    High Speed Controller Board

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    SDP-H1

    High Speed Controller Board

    High Speed Controller Board

    Features and Benefits

    • Xilinx® Spartan 6
    • 1 x FMC Low Pin Count ( LPC) connector
    • LVDS and single ended LVCMOS signaling
    • DDR2
    • JTAG header
    • Blackfin processor ADSP-BF527
    • 1 x small Footprint 120 pin connector
    • Configurable Peripheral Interfaces SPI, SPORT, I2C, GPIO, Asynchronous Parallel, PPI, Timers
    • USB 2.0 interface to the PC

    Product Detail

    The SDP-H1 is a high speed controller board for the System Demonstration Platform (SDP). The SDP-H1 has a Xilinx® Spartan 6 and an ADSP-BF527 processor with connectivity to the PC through a USB 2.0 high speed port. Controller boards allow for the configuration and capture of data on daughter boards from the PC via USB.

    The SDP-H1 has a FMC low pin count ( LPC) connector with full differential LVDS and singled ended LVCMOS support. It also has the 120 pin connector, found on the SDP-B which exposes the Blackfin processors peripherals. This connector provides a configurable Serial, Parallel I2C and SPI and GPIO communications lines to the attached daughter board. The PC side software application for controlling the attached daughter board is provided with each of the daughter product evaluation boards or Circuits from the Lab reference Circuits.

    The System Demonstration Platform is a collection of controller boards, interposer boards, and daughter boards, used for easy, low cost evaluation of ADI components and reference circuits. For a general overview of the entire platform visit the System Demonstration Platform homepage www.analog.com/sdp

    See the full list of compatible Product Evaluation Boards and Circuits from the Lab Reference Circuit Boards that require the SDP-B. All SDP-S compatible daughter boards can be used with the SDP-B.

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