National Semiconductor | High-performance Analog

 

 DAC128S085   

12-Bit Micro Power OCTAL Digital-to-Analog Converter with Rail-to-Rail Outputs from the PowerWise® Family
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Features

  • Guaranteed Monotonicity
  • Low Power Operation
  • Rail-to-Rail Voltage Output
  • Daisy Chain Capability
  • Power-on Reset to 0V
  • Simultaneous Output Updating
  • Individual Channel Power Down Capability
  • Wide power supply range (+2.7V to +5.5V)
  • Dual Reference Voltages with range of 0.5V to VA
  • Operating Temperature Range of −40°C to +125°C
  • Industry's Smallest Package
  • Description

    The DAC128S085 is a full-featured, general purpose OCTAL 12-bit voltage-output digital-to-analog converter (DAC) that can operate from a single +2.7V to +5.5V supply and consumes 1.95 mW at 3V and 4.85 mW at 5V. The DAC128S085 is packaged in a 16-lead LLP package and a 16-lead TSSOP package. The LLP package makes the DAC128S085 the smallest OCTAL DAC in its class. The on-chip output amplifiers allow rail-to-rail output swing and the three wire serial interface operates at clock rates up to 40 MHz over the entire supply voltage range. Competitive devices are limited to 25 MHz clock rates at supply voltages in the 2.7V to 3.6V range. The serial interface is compatible with standard SPI, QSPI, MICROWIRE and DSP interfaces. The DAC128S085 also offers daisy chain operation where an unlimited number of DAC128S085s can be updated simultaneously using a single serial interface.

    There are two references for the DAC128S085. One reference input serves channels A through D while the other reference serves channels E through H. Each reference can be set independently between 0.5V and VA, providing the widest possible output dynamic range. The DAC128S085 has a 16-bit input shift register that controls the mode of operation, the power-down condition, and the DAC channels' register/output value. All eight DAC outputs can be updated simultaneously or individually.

    A power-on reset circuit ensures that the DAC outputs power up to zero volts and remain there until there is a valid write to the device. The power-down feature of the DAC128S085 allows each DAC to be independently powered with three different termination options. With all the DAC channels powered down, power consumption reduces to less than 0.3 µW at 3V and less than 1 µW at 5V. The low power consumption and small packages of the DAC128S085 make it an excellent choice for use in battery operated equipment.

    The DAC128S085 is one of a family of pin compatible DACs, including the 8-bit DAC088S085 and the 10-bit DAC108S085. All three parts are offered with the same pinout, allowing system designers to select a resolution appropriate for their application without redesigning their printed circuit board. The DAC128S085 operates over the extended industrial temperature range of −40°C to +125°C.

    Key Specification

    Resolution

    12 bits

    INL

    ±8 LSB (max)

    DNL

    +0.75 / −0.4 LSB (max)

    Settling Time

    8.5 µs (max)

    Zero Code Error

    +15 mV (max)

    Full-Scale Error

    −0.75 %FSR (max)

    Supply Power

    Normal

    1.95 mW (3V) / 4.85 mW (5V) typ

    Power Down

    0.3 µW (3V) / 1 µW (5V) typ


    Applications

  • Battery-Powered Instruments
  • Digital Gain and Offset Adjustment
  • Programmable Voltage & Current Sources
  • Programmable Attenuators
  • Voltage Reference for ADCs
  • Sensor Supply Voltage
  • Range Detectors
  • Also Recommended
    DAC088S085For 8 Bits
    DAC108S085For 10 Bits
    DAC121S101For 12 Bit 1 Channel
    DAC122S085For 12 Bit 2 Channel
    DAC124S085For 12 Bit 4 Channel



    Typical Application
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    Block Diagram
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    Block Diagram


    Typical Performance
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    Parameters / ValuesDAC128S085 DAC088S085 DAC108S085 DAC121S101 DAC122S085 DAC124S085
    Resolution12 bits 8 bits 10 bits 12 bits 12 bits 12 bits
    Pin and Function Compatible FamilyNone None None 1 ch, SOT-6 2/4 ch, LLP-10, 2/4 ch, MSOP-10 2/4 ch, LLP-10, 2/4 ch, MSOP-10
    Channels8 Channels 8 Channels 8 Channels 1 Channels 2 Channels 4 Channels
    Interface TypeSPI/QSPI/Microwire SPI/QSPI/Microwire SPI/QSPI/Microwire Serial SPI/Microwire SPI/Microwire
    Settling Time8000 ns 8000 ns 8000 ns 8000 ns 8500 ns 8500 ns
    INL (LSB)+/-8 +/-0.5 +/-2 +/-2.6 +/-2.4 +/-2.4
    DNL (LSB)+0.75, -0.4 +0.15, -0.1 +0.35, -0.2 +0.25, -0.1 +2.0, -0.15 +2.0, -0.15
    Power Down, typ. at 3.6V0.3 uW 0.3 uW 0.3 uW 0.14 uW 0.3 uW 0.3 uW
    Oper Pwr typ, 3.6V, 30/0.4MHz SPI/I2C1.95 mW 1.95 mW 1.95 mW 0.64 mW 0.6 mW 1.1 mW
    PowerWise Rating 17.62 pJ/conv 7.62 pJ/conv 7.62 pJ/conv 6.5 pJ/conv 2.99 pJ/conv 2.74 pJ/conv
    Reference SourceExternal External External Supply External External
    Max Supply Voltage5.5 Volt 5.5 Volt 5.5 Volt 5.5 Volt 5.5 Volt 5.5 Volt
    Min Supply Voltage2.7 Volt 2.7 Volt 2.7 Volt 2.7 Volt 2.7 Volt 2.7 Volt
    Temperature Min-40 deg C -40 deg C -40 deg C -40 deg C -40 deg C -40 deg C
    Temperature Max125 deg C 125 deg C 125 deg C 125, 105 deg C 105 deg C 105 deg C
    OtherSupply VoltageUndefined Undefined Undefined 4.5V to 5.5V 4.5V to 5.5V 4.5V to 5.5V
    Tsettling Conditions5.5V 5.5V 5.5V code change 400h to C00h code change 400h to C00h code change from 100h to 300h
    Data Converter TypeDAC DAC DAC DAC DAC DAC
    AutomotiveYes Yes Yes Yes Yes Yes
    PowerWiseYes Yes Yes Yes Yes Yes

    Datasheets
    TitleSizeDateOther
    Language
    DAC128S085 12-Bit Micro Power OCTAL Digital-to-Analog Converter with Rail-to-Rail Outputs550
    Kbytes
    10-Mar-09日本語  


    Application Notes
    TitleSizeDateOther
    Language
    AN-2001: Application Note 2001 Daisy Chaining Precision DACs141
    Kbytes
    25-Sep-09 

    Part Number(s)
    (NSID)
    Top ViewAvailabilityCurrent Reported StockBudgetary PricingPack
    Size
    DAC128S085CIMT/NOPB

    DAC128S085CIMT

    RoHS Status


    TSSOP
    Full production
    Lead Time: 6 weeks

    Samples
    DistributorRegionQty
    ARROWWorldwide79
    DIGI-KEYWorldwide215
    FARNELLEurope and Asia134
    MOUSERWorldwide86
    NEWARKAmericas79
    RS COMPONENTSWorldwide64
    TAYLORAmericas79
    $5.80 each at 1K+ pcsrail
    of
    92
    DAC128S085CIMTX/NOPB

    DAC128S085CIMTX

    RoHS Status


    TSSOP
    Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    $5.80 each at 1K+ pcsreel
    of
    2500
    DAC128S085CISQ/NOPB

    DAC128S085CISQ

    RoHS Status


    LLP
    Full production
    Lead Time: 6 weeks

    Samples
    DistributorRegionQty
    DIGI-KEYWorldwide1677
    $5.80 each at 1K+ pcsreel
    of
    1000

    All information pertaining to the RoHS Compliance Standard can be found at http://www.national.com/en/packaging/leadfree.html.

    Moisture Sensitivity Level Data for DAC128S085.

    A RoHS compliance or an IPC 1752 report can be acquired at http://www.national.com/en/packaging/greennopb.html.

    National's certificate of product compliance for DAC128S085 is located at RoHS Status.

    Part Number(s)
    (NSID)
    DescriptionAvailabilityCurrent Reported StockBudgetary PricingPack
    Size
    DAC128S085EB/NOPB

    DAC128S085EB Evaluation BoardFull production
    Lead Free (RoHS)

     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    TAYLORAmericas2
    $120.00 each1

    Description:

    The DAC128S085EB features one of the members from our family of OCTAL 8-, 10-, and 12-bit general purpose Digital-to-Analog Converters (DACs) with Rail-to-Rail Output. Enclosed is the evaluation kit for this product, including the DAC128S085 evaluation board and a user's guide for this board. The DAC128S085EB can be evaluated in manual or computer mode. In manual mode, a pattern generator is used to interface with the board. In order to interface this board to a PC, a WaveVision (WV) Data Capture Board, version 4.1 or higher, is required. The WV Data Capture Board requires WaveVision software version 4.4 or higher for the DAC128S085EB to be recognized automatically by the WV software.

    The DACXX8S085 family of DACs features an SPI interface with daisy chain capability that operates at clock rates up to 40 MHz. The supply voltage can range from +2.7V to +5.5V and consumes just 1.95 mW at 3V and 4.9 mW at 5V. A power-down feature where individual channels can be powered down independently reduces the power consumption of all family members to 0.3 uW at 3V and 1.0 uW at 5V. The DACXX8S085 family features two external reference inputs that supply the reference voltage for channels A to D and channels E to H. The references for the family of DACs can vary in voltage between 0.5V and VA.

    Features:

    • Guaranteed Monotonic
    • Low Power Operation
    • Rail-to-Rail Voltage Output
    • Daisy Chain Capability
    • Individual Channel Power-Down Capability
    • Wide Power Supply Range of +2.7V to +5.5V
    • Dual Reference Voltage Range of +0.5V to VA
    • Operating Temperature Range of -40°C to 125°C
    • 16-Lead LLP or 16-Lead TSSOP

    Contents:

    • Evaluation Board
    • User's Guide



    National Semiconductor follows the provisions of the Product Stewardship Guide for Customers (CSP-9-111C1) and Banned Substances and Materials of Interest Specification (CSP-9-111S2) for regulatory environmental compliance. Details may be found at: www.national.com/en/packaging/greennopb.html. Lead free products are RoHS compliant.

    Lead Free product status is available through the search tool located here

    Part Number(s)
    (NSID)
    Weight
    (milligrams)
    TypePinsMSL RatingPeak ReflowRoHS
    Status
    CAD SymbolsModelsPackage
    Marking
    Format
    DAC128S085CIMT/NOPB

    DAC128S085CIMT
    56.74
    57
    TSSOP161
    1
    260
    260
    DetailDownloadN/A
    ZXTT
    X78C
    DAC128S085CIMTX/NOPB

    DAC128S085CIMTX
    56.74
    57
    TSSOP161
    1
    260
    260
    DetailDownloadN/A
    ZXTT
    X78C
    DAC128S085CISQ/NOPB

    DAC128S085CISQ
    39.461
    39.599
    LLP161
    1
    260
    260
    DetailDownloadN/A
    NS
    UZXYTT
    128S085

    All information pertaining to the RoHS Compliance Standard can be found at http://www.national.com/en/packaging/leadfree.html.

    Moisture Sensitivity Level Data for DAC128S085.

    A RoHS compliance or an IPC 1752 report can be acquired at http://www.national.com/en/packaging/greennopb.html.

    National's certificate of product compliance for DAC128S085 is located at RoHS Status.

    CAD Symbols and Models
    Download DAC128S085 CAD Symbols
     Models
    N/A


    Reliability Metrics
    Part Number Process EFR Reject EFR Sample Size PPM LTA Rejects LTA Device Hours FITS MTTF (Hours)
    DAC128S085CIMTCMOS70213010015840003449464325
    DAC128S085CIMTXCMOS70213010015840003449464325
    DAC128S085CISQCMOS70213010015840003449464325

    Note: The Early Failure Rates (EFR) were calculated as point estimate PPM based on rejects and sample size for EFR. The Long Term Failure Rates were calculated at 60% confidence using the Arrhenius equation at 0.7eV activation energy and derating the assumed stress temperature of 150°C to an application temperature of 55°C.

    For more information on Reliability Metrics, please click here.


    All information pertaining to the RoHS Compliance Standard can be found at http://www.national.com/en/packaging/leadfree.html.

    Moisture Sensitivity Level Data for DAC128S085.

    A RoHS compliance or an IPC 1752 report can be acquired at http://www.national.com/en/packaging/greennopb.html.

    National's certificate of product compliance for DAC128S085 is located at RoHS Status.

    Data Acquisition In Factory Automation
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    Factory Automation Overview
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    Data Acquisition In Factory Automation
    Date: 2009-08-24
    Length: 0:31:29
    Factory Automation Overview
    Date: 2009-08-04
    Length: 0:32:30
    [Information as of 9-Feb-2012]