National Semiconductor | High-performance Analog

 

 ADC121S101   

Single Channel, 0.5 to 1 Msps, 12-Bit A/D Converter from the PowerWise® Family
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Features

  • Specified over a range of sample rates.
  • 6-lead LLP and SOT-23 packages
  • Variable power management
  • Single power supply with 2.7V - 5.25V range
  • SPI™/QSPI™/MICROWIRE/DSP compatible
  • Description

    The ADC121S101 is a low-power, single channel CMOS 12-bit analog-to-digital converter with a high-speed serial interface. Unlike the conventional practice of specifying performance at a single sample rate only, the ADC121S101 is fully specified over a sample rate range of 500 ksps to 1 Msps. The converter is based upon a successive-approximation register architecture with an internal track-and-hold circuit.

    The output serial data is straight binary, and is compatible with several standards, such as SPI™, QSPI™, MICROWIRE, and many common DSP serial interfaces.

    The ADC121S101 operates with a single supply that can range from +2.7V to +5.25V. Normal power consumption using a +3V or +5V supply is 2.0 mW and 10 mW, respectively. The power-down feature reduces the power consumption to as low as 2.6 µW using a +5V supply.

    The ADC121S101 is packaged in 6-lead LLP and SOT-23 packages. Operation over the industrial temperature range of −40°C to +125 °C is guaranteed.

    Key Specification

    DNL

    +0.5 / −0.3 LSB (typ)

    INL

    ±0.40 LSB (typ)

    SNR

    72.5 dB (typ)

    Power Consumption

    3V Supply

    2.0 mW (typ)

    5V Supply

    10 mW (typ)


    Applications

  • Portable Systems
  • Remote Data Acquisition
  • Instrumentation and Control Systems
  • Also Recommended
    ADC081S101For 8 Bits
    ADC101S101For 10 Bits
    ADC121S021For Speeds From 50Ksps To 200Ksps
    ADC121S051For Speeds From 200Ksps To 500Ksps



    Typical Application
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    Block Diagram
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    Typical Performance
    click for larger image


    Parameters / ValuesADC121S101 ADC081S101 ADC101S101 ADC121S021 ADC121S051
    Pin and Function Compatible Family1 ch, SOT-6, 1 ch, LLP-6 1 ch, SOT-6, 1 ch, LLP-6 1 ch, SOT-6, 1 ch, LLP-6 1 ch, SOT-6, 1 ch, LLP-6 1 ch, SOT-6, 1 ch, LLP-6
    Resolution12 bits 8 bits 10 bits 12 bits 12 bits
    Input Channels1 1 1 1 1
    Sample Rate Range (sps)500k to 1M 500k to 1M 500k to 1M 50k to 200k 200k to 500k
    Interface TypeSPI / QSPI / Microwire SPI/QSPI/Microwire SPI / QSPI / Microwire SPI / QSPI / Microwire SPI / QSPI / Microwire
    Differential InputNo No No No No
    Power Down, typ. at 3.6V2.5 uW 2.5 uW 2.5 uW 2.6 uW 2.5 uW
    Operating Power, typ at 3.6V, max ksps0.007 mW 0.007 mW 0.007 mW 0.024 mW 0.012 mW
    Operating Power, 3.6V, 1ksps, max. PwrDn2.0 mW 2.0 mW 2.0 mW 1.5 mW 1.7 mW
    PowerWise Rating 10.6 pJ/conv 8.37 pJ/conv 2.09 pJ/conv 2.25 pJ/conv 1.1 pJ/conv
    INL (LSB)+/-0.4 +/-0.05 +/-0.2 +0.45; -0.4 +0.45; -0.4
    DNL (LSB)+0.5; -0.3 +/-0.07 +0.3; -0.2 +0.45; -0.25 +0.5; -0.25
    ENOB11.7 bits 7.9 bits 9.9 bits 11.7 bits 11.6 bits
    SINAD72 dB 49.7 dB 61.7 dB 72 dB 72 dB
    SNR72.5 dB 49.7 dB 62 dB 72.3 dB 72 dB
    Max KSample Rate1000 ksps 1000 ksps 1000 ksps 200 ksps 500 ksps
    Min Supply Voltage2.7 Volt 2.7 Volt 2.7 Volt 2.7 Volt 2.7 Volt
    Max Supply Voltage5.25 Volt 5.25 Volt 5.25 Volt 5.25 Volt 5.25 Volt
    Reference SourceSupply Supply Supply Supply Supply
    Temperature Min-40 deg C -40 deg C -40 deg C -40 deg C -40 deg C
    Temperature Max125 deg C 85 deg C 85 deg C 85 deg C 85 deg C
    Power DownYes Yes Yes Yes Yes
    Input Sample/HoldYes Yes Yes Yes Yes
    Special FeaturesUndefined Undefined Undefined Undefined Undefined
    Data Converter TypeADC ADC ADC ADC ADC
    Max Sample Rate1 MSPS 1 MSPS 1 MSPS 0.2 MSPS 0.5 MSPS
    AutomotiveYes Yes Yes
    PowerWiseYes Yes Yes Yes Yes

    Datasheets
    TitleSizeDateOther
    Language
    ADC121S101 Single Channel, 0.5 to 1 Msps, 12-Bit A/D Converter385
    Kbytes
    14-Jan-10日本語  


    Other Technical Documents
    TitleTypeDate
    Interface High-Performance Op Amps With ADCsExternal Article 2008-09-11
    Maximizing Signal-Path Performance (Precision Signal Path)Signal Path Designer 2005-07-08
    Liquid-Level Monitoring Using a Pressure SensorSignal Path Designer 2008-10-15
    Minimizing ADC Power ConsumptionExternal Article 2008-08-06
    Optimizing Portable Applications with D/A ConvertersTechnology Edge 2006-09-01
    Amplifier Closed-Loop Bandwidth Considerations in High Resolution A/D Converter ApplicationsTechnology Edge 2006-10-01

    Part Number(s)
    (NSID)
    Top ViewAvailabilityCurrent Reported StockBudgetary PricingPack
    Size
    ADC121S101CIMF/NOPB

    ADC121S101CIMF

    RoHS Status


    SOT-23
    Full production
    Lead Time: 12 weeks

    Samples
    DistributorRegionQty
    AVNET-EMWorldwide1000
    CEACAsia Pacific5000
    DIGI-KEYWorldwide13885
    FARNELLEurope and Asia1882
    MOUSERWorldwide916
    RS COMPONENTSWorldwide778
    $1.60 each at 1K+ pcsreel
    of
    1000
    ADC121S101CIMFX/NOPB

    ADC121S101CIMFX

    RoHS Status


    SOT-23
    Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    $1.60 each at 1K+ pcsreel
    of
    3000
    ADC121S101CISD/NOPB

    ADC121S101CISD

    RoHS Status


    LLP
    Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    MOUSERWorldwide795
    RS COMPONENTSWorldwide5
    $1.60 each at 1K+ pcsreel
    of
    1000
    ADC121S101CISDX/NOPB

    ADC121S101CISDX

    RoHS Status


    LLP
    Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    $1.60 each at 1K+ pcsreel
    of
    4500

    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 ADC121S101.

    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 ADC121S101 is located at RoHS Status.

    Part Number(s)
    (NSID)
    DescriptionAvailabilityCurrent Reported StockBudgetary PricingPack
    Size
    ADC121S101EVAL
    Single Channel, 0.5 to 1 Msps, 12-Bit A/D ConverterFull production


     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    MOUSERWorldwide2
    $120.00 each1

    Description:

    The ADC121S101 is a 2 mW, CMOS 12-bit, 1 MSPS Analog-to-Digital converter offered in a 6-lead SOT-23 and is designed to operate over the automotive/extended industrial temperature range of -40°C to +125°C.

    This evaluation board is designed to ease the evaluation and design-in of National Semiconductor's ADC121S101 Analog-to-Digital Converter. The board and can be used in either of two modes. In the Manal or Stand alone mode the board can be used with suitable test equipment to evaluate the ADC121S101's performance. In the Computer or Automatic mode, evaluation is simplified by connecting the board to the Wavevision Digital Interface Board (order number WAVEVISION BRD 4.0 or later), which in turn is connected to a personal computer through an USB communication port, and using National Semiconductor's Wavevision software.

    Features:

    • Variable power management
    • Packaged in 6-lead, SOT-23
    • Power supply used as reference
    • Single +2.7V to +5.25V supply operation
    • SPI™/QSPI™/MICROWIRE™/DSP compatible

    Contents:




    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
    ADC121S101CIMF/NOPB

    ADC121S101CIMF
    15.063
    15.2
    SOT-2361
    1
    260
    260
    DetailDownloadN/A
    X01C
    XTT
    ADC121S101CIMFX/NOPB

    ADC121S101CIMFX
    15.063
    15.2
    SOT-2361
    1
    260
    260
    DetailDownloadN/A
    X01C
    XTT
    ADC121S101CISD/NOPB

    ADC121S101CISD
    11.722
    11.105
    LLP61
    1
    260
    260
    DetailDownloadN/A
    XTT
    X1C
    ADC121S101CISDX/NOPB

    ADC121S101CISDX
    11.721
    11.105
    LLP61
    1
    260
    260
    DetailDownloadN/A
    XTT
    X1C

    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 ADC121S101.

    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 ADC121S101 is located at RoHS Status.

    Design Tools
    TitleSizeDate
    Evaluation Boards & Development Systems  

    CAD Symbols and Models
    Download ADC121S101 CAD Symbols
     Models
    N/A


    Reliability Metrics
    Part Number Process EFR Reject EFR Sample Size PPM LTA Rejects LTA Device Hours FITS MTTF (Hours)
    ADC121S101CIMFCMOS70213010015840003449464325
    ADC121S101CIMFXCMOS70213010015840003449464325
    ADC121S101CISDCMOS70213010015840003449464325
    ADC121S101CISDXCMOS70213010015840003449464325

    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 ADC121S101.

    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 ADC121S101 is located at RoHS Status.

    MotionFire Development Platform
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    MotionFire Development Platform
    Date: 2009-03-25
    Length: 0:30:00
    [Information as of 9-Feb-2012]