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ADS7958 Status: ACTIVE

8 bit, 1 MSPS, 4 Ch, Single Ended, Micro Power, sr i/f, SAR ADC


      
         
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Datasheet

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Functional Block Diagram


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 ADS7950 ADS7951 ADS7952 ADS7953 ADS7954 ADS7955 ADS7956 ADS7957 ADS7958ADS7959 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

  • TPS65023: 6-channel Power Mgmt IC with 3DC/DCs, 3 LDOs, I2C Interface and DVS, Optimized for DaVinci DSPs
  • TPS76333: Single Output LDO, 150mA, Fixed(3.3V), Low Quiescent Current, Thermal Protection
  • CDCVF2310: High Performance 1:10 Clock Buffer for General Purpose Applications

    • 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
    ADS7958SDBTACTIVE-40 to 1251.40 | 1kuTSSOP (DBT) | 30 View 60 | TUBE
    ADS7958SDBTG4ACTIVE-40 to 1251.40 | 1kuTSSOP (DBT) | 30 View 60 | TUBE
    ADS7958SDBTRACTIVE-40 to 1251.25 | 1kuTSSOP (DBT) | 30 View 2000 | LARGE T&RPurchase Samples
    ADS7958SDBTRG4ACTIVE-40 to 1251.25 | 1kuTSSOP (DBT) | 30 View 2000 | LARGE T&RPurchase Samples
    ADS7958SRGERPREVIEW-40 to 125 VQFN (RGE) | 24 View 3000Not Available
    ADS7958SRGETPREVIEW-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 12:09 PM GMT, 08 Nov 2009
    RegionCompanyIn StockPurchase
    TI Lead Time*: 4 WeeksADS7958SDBT
    AsiaFarnell Asia 94
    WPI 60
    EuropeFarnell 76
    WorldwideDigiKey 604
    Mouser Electronics >1k
    TI Lead Time*: 4 WeeksADS7958SDBTG4
    WorldwideDigiKey  Available
    TI Lead Time*: 20 WeeksADS7958SDBTR
    WorldwideDigiKey  Available
    TI Lead Time*: 20 WeeksADS7958SDBTRG4
    WorldwideDigiKey  Available
    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
    ADS7958SDBT RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
    ADS7958SDBTG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
    ADS7958SDBTR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
    ADS7958SDBTRG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
    ADS7958SRGER      View
    ADS7958SRGET      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 ADS7958 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...
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    TPS76333 Single Output LDO, 150mA, Fixed(3.3V), Low Quiescent Current, Thermal Protection LINEAR REGULATORS-SINGLE CHANNEL LDO TI customers also evaluated this product.
    CDCVF2310 High Performance 1:10 Clock Buffer for General Purpose Applications NON-PLL BUFFERS-SINGLE ENDED(NP) TI customers also evaluated this product.
    TPS54316 Low Input Voltage 3A Synchronous Buck Converter with 3.3V Output DC/DC CONVERTERS (INTEGRATED SWITCH)-STEP-DOWN REGULATORS TI customers also evaluated this product.
    TSC2007 Nano-Power Touch Screen Controller with I2C Serial Interface TOUCH SCREEN CONTROLLER-TOUCH SCREEN CONTROLLER ONLY TI customers also evaluated this product.
    SN74LVC1G08 Single 2-Input Positive-AND Gate LITTLE LOGIC-LL GATE TI customers also evaluated this product.
    TLV320AIC33 Low-Power Stereo CODEC with 10 Inputs, 7 Outputs, HP/Speaker Amplifier and Enhanced Digital Effects AUDIO CONVERTER AND CODEC-CODEC TI customers also evaluated this product.
    TPS65053 5-Channel Power Mgmt IC with two step down converters and 3 low-input voltage LDOs POWER MANAGEMENT MULTI-CHANNEL IC (PMIC) SOLUTIONS-PMIC SOLUTIONS WITH AND WITHOUT BATTERY CHARGER TI customers also evaluated this product.
    SN74AVC4T245 4-Bit Dual-Supply Bus Transceiver with Configurable Voltage Translation and 3-State Outputs VOLTAGE LEVEL TRANSLATION-DUAL SUPPLY TRANSLATORS TI customers also evaluated this product.
    SN74CBTLV16292 Low-Voltage 12-Bit 1-Of-2 FET Multiplexer/Demultiplexer With Internal Pulldown Resistors SIGNAL SWITCHES-DIGITAL BUS EXCHANGE/MULTIPLEXING SWITCHES TI customers also evaluated this product.

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