TI Home > Semiconductors > Data Converters > Analog to Digital Converter >

ADS7950 Status: ACTIVE

12 bit, 1 MSPS, 4 ch, single ended, micro power, sr i/f, SAR ADC


      
         
Alert me about changes<br/>to this product


Datasheet

Download - PDF Icon		 

Functional Block Diagram


enlarge Enlarge

 ADS7950ADS7951 ADS7952 ADS7953 ADS7954 ADS7955 ADS7956 ADS7957 ADS7958 ADS7959 ADS7960 ADS7961 
Resolution(Bits)12  12  12  12  10  10  10  10  8  8  8  8  
Sample Rate (max)1MSPS  1MSPS  1MSPS  1MSPS  1MSPS  1MSPS  1MSPS  1MSPS  1MSPS  1MSPS  1MSPS  1MSPS  
ArchitectureSAR  SAR  SAR  SAR  SAR  SAR  SAR  SAR  SAR  SAR  SAR  SAR  
Power Consumption(Typ)(mW)11.5  11.5  11.5  11.5  11.5  11.5  11.5  11.5  11.5  11.5  11.5  11.5  
SINAD(dB)69  69  69  69  60  60  60  60  49  49  49  49  
SNR(dB)70  70  70  70  60  60  60  60  49  49  49  49  
SNR(Typ)(dB)71.7  71.7  71.7  71.7  61.7  61.7  61.7  61.7  49.8  49.8  49  49  
SFDR(dB)84  84  84  84  82  82  82  82  78  78  78  78  
DNL(Max)(+/-LSB)1  1  1  1  0.5  0.5  0.5  0.5  0.3  0.3  0.3  0.3  
INL(Max)(+/-LSB)1  1  1  1  0.5  0.5  0.5  0.5  0.3  0.3  0.3  0.3  
No Missing Codes(Bits)12  12  12  12  10  10  10  10  8  8  8  8  
ENOB(Bits)11.29  11.29  11.29  11.29  9.66  9.66  9.66  9.66  7.85  7.85  7.85  7.85  
No. of Supplies2  2  2  2  2  2  2  2  2  2  2  2  
Analog Voltage AV/DD(Min)(V)2.7  2.7  2.7  2.7  2.7  2.7  2.7  2.7  2.7  2.7  2.7  2.7  
Analog Voltage AV/DD(Max)(V)5.25  5.25  5.25  5.25  5.25  5.25  5.25  5.25  5.25  5.25  5.25  5.25  
Logic Voltage DV/DD(Min)(V)1.7  1.7  1.7  1.7  1.7  1.7  1.7  1.7  1.7  1.7  1.7  1.7  
Logic Voltage DV/DD(Max)(V)5.25  5.25  5.25  5.25  5.25  5.25  5.25  5.25  5.25  5.25  5.25  5.25  
Input Configuration RangeVref, 2Vref  Vref, 2Vref  Vref, 2Vref  Vref, 2Vref  Vref, 2Vref  Vref, 2VREF  Vref, 2VREF  Vref, 2Vref  Vref. 2Vref  Vref, 2Vref  Vref, 2Vref  Vref, 2Vref  
Reference ModeExt  Ext  Ext  Ext  Ext  Ext  Ext  Ext  Ext  Ext  Ext  Ext  
RatingCatalog  Catalog  Catalog  Catalog  Catalog  Catalog  Catalog  Catalog  Catalog  Catalog  Catalog  Catalog  
Pin/Package24VQFN, 30TSSOP  24VQFN, 30TSSOP  32QFN, 38TSSOP  32QFN, 38TSSOP  24VQFN, 30TSSOP  24VQFN, 30TSSOP  32QFN, 38TSSOP  32QFN, 38TSSOP  24VQFN, 30TSSOP  24VQFN, 30TSSOP  32QFN, 38TSSOP  32QFN, 38TSSOP  
# Input Channels4  8  12  16  4  8  12  16  4  8  12  16  
 SamplesSamplesSamplesSamplesSamplesSamplesSamplesSamplesSamplesSamplesSamplesSamples
 InventoryInventoryInventoryInventoryInventoryInventoryInventoryInventoryInventoryInventoryInventoryInventory

Customers Who Evaluated This Product Also Evaluated

  • OPA690: Wideband, Voltage Feeback Operational Amplifier With Disable
  • TLV3501: 4.5ns Rail-to-Rail, High Speed Comparator in Microsized Packages
  • OPA820: Unity Gain Stable,Low Noise,Voltage Feedback Operational Amplifier

    • Product Information

    Features

    • 1-MHz Sample Rate Serial Devices
    • Product Family of 12/10/8-Bit Resolution
    • Zero Latency
    • 20-MHz Serial Interface
    • Analog Supply Range: 2.7 to 5.25V
    • I/O Supply Range: 1.7 to 5.25V
    • Two SW Selectable Unipolar, Input Ranges: 0 to 2.5V and 0 to 5V
    • Auto and Manual Modes for Channel Selection
    • 12,8,4-Channel Devices can Share 16 Channel Device Footprint
    • Two Programmable Alarm Levels per Channel
    • Four Individually Configurable GPIOs
    • Typical Power Dissipation: 14.5 mW (+VA = 5V, +VBD = 3V) at 1 MSPS
    • Power-Down Current (1 µA)
    • Input Bandwidth (47 at 3dB)
    • 30-Pin and 38-Pin TSSOP Packages
    • APPLICATIONS
      • PLC / IPC
      • Battery Powered Systems
      • Medical Instrumentation
      • Digital Power Supplies
      • Touch Screen Controllers
      • High-Speed Data Acquisition Systems
      • High-Speed Closed-Loop Systems

    Description

    The ADS79XX is a 12/10/8-bit multichannel analog-to-digital converter family. The following table shows all twelve devices from this product family.

    The devices include a capacitor based SAR A/D converter with inherent sample and hold.

    The devices accept a wide analog supply range from 2.7V to 5.25V. Very low power consumption makes these devices suitable for battery-powered and isolated power supply applications.

    A wide 1.7V to 5.25V I/O supply range facilitates a glue-less interface with the most commonly used CMOS digital hosts.

    The serial interface is controlled by CS and SCLK for easy connection with microprocessors and DSP.

    The input signal is sampled with the falling edge of CS. It uses SCLK for conversion, serial data output, and reading serial data in. The devices allow auto sequencing of preselected channels or manual selection of a channel for the next conversion cycle.

    There are two software selectable input ranges (0V - 2.5V and 0V - 5V), four individually configurable GPIOs, and two programmable alarm thresholds per channel. These features make the devices suitable for most data acquisition applications.

    The devices offer an attractive power-down feature. This is extremely useful for power saving when the device is operated at lower conversion speeds.

    The 16/12-channel devices from this family are available in a 38-pin TSSOP package and the 4/8-channel devices are available in a 30-pin TSSOP package.

    		    

    Pricing / Packaging / CAD Design Tools / Samples

    PricePackagingSamples
    DeviceStatusTemp (oC)Price | QuantityPackage | PinsTop Side MarkingPackage QTY | Package CarrierSamples
    ADS7950SBDBTACTIVE-40 to 1252.80 | 1kuTSSOP (DBT) | 30 View 60 | TUBE
    ADS7950SBDBTG4ACTIVE-40 to 1252.80 | 1kuTSSOP (DBT) | 30 View 60 | TUBE
    ADS7950SBDBTRACTIVE-40 to 1252.55 | 1kuTSSOP (DBT) | 30 View 2000 | LARGE T&RPurchase Samples
    ADS7950SBDBTRG4ACTIVE-40 to 1252.55 | 1kuTSSOP (DBT) | 30 View 2000 | LARGE T&RPurchase Samples
    ADS7950SBRGERPREVIEW-40 to 125 VQFN (RGE) | 24 View 3000Not Available
    ADS7950SBRGETPREVIEW-40 to 125 VQFN (RGE) | 24 View 250Not Available
    ADS7950SDBTACTIVE-40 to 1252.55 | 1kuTSSOP (DBT) | 30 View 60 | TUBE
    ADS7950SDBTG4ACTIVE-40 to 1252.55 | 1kuTSSOP (DBT) | 30 View 60 | TUBE
    ADS7950SDBTRACTIVE-40 to 1252.30 | 1kuTSSOP (DBT) | 30 View 2000 | LARGE T&RPurchase Samples
    ADS7950SDBTRG4ACTIVE-40 to 1252.30 | 1kuTSSOP (DBT) | 30 View 2000 | LARGE T&RPurchase Samples
    ADS7950SRGERPREVIEW-40 to 125 VQFN (RGE) | 24 View 3000Not Available
    ADS7950SRGETPREVIEW-40 to 125 VQFN (RGE) | 24 View 250Not Available

    * Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For higher volume price quotes,prices in local currency or delivery quotes, please contact your local Texas Instruments Sales Office or Authorized Distributor.

    Inventory

    Reported Distributor Inventory as of 12:10 PM GMT, 08 Nov 2009
    RegionCompanyIn StockPurchase
    TI Lead Time*: 4 WeeksADS7950SBDBT
    AmericasArrow >1k
    AsiaFarnell Asia 36
    WPI 36
    EuropeCompel 49
    Farnell 27
    WorldwideDigiKey 637
    Mouser Electronics >1k
    TI Lead Time*: 4 WeeksADS7950SBDBTG4
    WorldwideDigiKey  Available
    TI Lead Time*: 20 WeeksADS7950SBDBTR
    WorldwideDigiKey  Available
    TI Lead Time*: 20 WeeksADS7950SBDBTRG4
    WorldwideDigiKey  Available
    TI Lead Time*: 4 WeeksADS7950SDBT
    AmericasArrow 300
    Avnet 25
    AsiaWPI >1k
    WorldwideDigiKey 39
    Mouser Electronics >1k
    TI Lead Time*: 4 WeeksADS7950SDBTG4
    None Reported
    View Distributors
    TI Lead Time*: 20 WeeksADS7950SDBTR
    None Reported
    View Distributors
    TI Lead Time*: 20 WeeksADS7950SDBTRG4
    None Reported
    View Distributors
    View all Distributors  

    ** Lead time information is not available at this time. However, our information is updated daily so please check back with us soon. Please contact your preferred TI Authorized Distributor for additional information.

    Quality & Lead (Pb)-Free Data

     Product ContentDPPM / MTBF / FIT Rate
    DeviceEco Plan* Lead / Ball FinishMSL Rating / Peak ReflowDetailsDetails
    ADS7950SBDBT RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
    ADS7950SBDBTG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
    ADS7950SBDBTR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
    ADS7950SBDBTRG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
    ADS7950SBRGER      View
    ADS7950SBRGET      View
    ADS7950SDBT RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
    ADS7950SDBTG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
    ADS7950SDBTR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
    ADS7950SDBTRG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
    ADS7950SRGER      View
    ADS7950SRGET      View

    * The planned eco-friendly classification: Pb-Free (RoHS) or Pb-Free (RoHS Exempt) or Green (RoHS & no Sb/Br) - please click on the Product Content Details "View" link in the table above for the latest availability information and additional product content details.

    If the information you are requesting is not available online at this time, contact one of our Product Information Centers regarding the availability of this information.

    Technical Documents

    Most useful technical documents for ADS7950 Help

    Datasheet

    Application Notes

    View Application Notes for Analog to Digital Converter

    User Guides

    View User Guides for Analog to Digital Converter

    Tools & Software

    NamePart # Company Tool / Software Type
    Anti-Aliasing Calculation Tool for A to D ConvertersANTIALIASINGCALCTexas InstrumentsCalculation Utilities
    Op Amp to ADC Circuit Topology CalculatorADC-INPUT-CALCTexas InstrumentsCalculation Utilities

    Customers Who Evaluated This Product Also Evaluated...
    Part # Name Product Family Comments
    OPA690 Wideband, Voltage Feeback Operational Amplifier With Disable HIGH SPEED AMPLIFIER-VOLTAGE FEEDBACK TI customers also evaluated this product.
    TLV3501 4.5ns Rail-to-Rail, High Speed Comparator in Microsized Packages AMPLIFIERS AND LINEAR-COMPARATOR TI customers also evaluated this product.
    OPA820 Unity Gain Stable,Low Noise,Voltage Feedback Operational Amplifier HIGH SPEED AMPLIFIER-VOLTAGE FEEDBACK TI customers also evaluated this product.
    TL3116 Ultra-Fast Low-Power Precision Comparator AMPLIFIERS AND LINEAR-COMPARATOR TI customers also evaluated this product.
    INA333 Low Power, Precision Instrumentation Amplifier INSTRUMENTATION AMPLIFIER-SINGLE SUPPLY TI customers also evaluated this product.
    DAC904 14-Bit, 165MSPS SpeedPlus(TM) DAC Scalable Current Outputs between 2mA to 20mA DATA CONVERTERS-DIGITAL TO ANALOG CONVERTER TI customers also evaluated this product.
    TLV5636 12-Bit, 1 us DAC Serial Input, Pgrmable Int. Ref., Settling Time DATA CONVERTERS-DIGITAL TO ANALOG CONVERTER TI customers also evaluated this product.

    Support and Community

    Customer Tags Help

    No Tags are Available for this Part Number

    Other Support



    Click Here