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ADS7812 Status: ACTIVE

Low-Power, Serial 12-Bit Sampling Analog-To-Digital Converter


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See Also

  • ADS8506 - The device has the SAME FUNCTIONALITY as the compared device, but is not pin-for-pin equivalent and may not be parametrically equivalent.  Has a higher sampling rate (80kSPS) has both serial and parallel output interfaces
  • ADS8513 - The device has the SAME FUNCTIONALITY as the compared device, but is not pin-for-pin equivalent and may not be parametrically equivalent.  16-bit equivalent device

Special Note

For more information on upgrading to the ADS850X family please follow the link in the upper right hand corner to the Bipolar SAR homepage

 ADS7812
Resolution(Bits)12  
Sample Rate (max)40kSPS  
ArchitectureSAR  
Power Consumption(Typ)(mW)35  
SINAD(dB)74  
SNR(dB)74  
SFDR(dB)98  
DNL(Max)(+/-LSB)0.5  
INL(Max)(+/-LSB)0.5  
No Missing Codes(Bits)12  
ENOB(Bits)12  
No. of Supplies1  
Analog Voltage AV/DD(Min)(V)4.75  
Analog Voltage AV/DD(Max)(V)5.25  
Logic Voltage DV/DD(Min)(V)4.75  
Logic Voltage DV/DD(Max)(V)5.25  
Input Configuration Range+4V, 10V, +/-3.3V, 5V, 10V  
Reference ModeInt and Ext  
RatingCatalog  
Pin/Package16PDIP, 16SOIC  
# Input Channels1  
 Samples
 Inventory

Customers Who Evaluated This Product Also Evaluated

  • RCV420: Precision 4mA to 20mA Current Loop Receiver
  • XTR106: 4-20mA Current Transmitter with Bridge Excitation And Linearization
  • DRV594: +/-3 A High-Efficiency PWM Power Driver

    • Product Information

    Features

    • 20µs max CONVERSION TIME
    • SINGLE +5V SUPPLY OPERATION
    • PIN-COMPATIBLE WITH 16-BIT ADS7813
    • EASY-TO-USE SERIAL INTERFACE
    • 0.3" DIP-16 AND SO-16
    • ±0.5LSB max INL AND DNL
    • 72dB min SINAD
    • USES INTERNAL OR EXTERNAL REFERENCE
    • MULTIPLE INPUT RANGES
    • 35mW max POWER DISSIPATION
    • NO MISSING CODES
    • 50µW POWER DOWN MODE
    • APPLICATIONS
      • DATA ACQUISITION SYSTEMS
      • INDUSTRIAL CONTROL
      • TEST EQUIPMENT
      • DIGITAL SIGNAL PROCESSING

    Note: Recommended Voltage Reference: REF02 and REF102
    All trademarks are the property of their respective owners.

    Description

    The ADS7812 is a low-power, single +5V supply, 12-bit sampling analog-to-digital converter. It contains a complete 12-bit capacitor-based SAR A/D with a sample/hold, clock, reference, and serial data interface.

    The converter can be configured for a variety of input ranges including ±10V, ±5V, 0V to 10V, and 0.5V to 4.5V. A high impedance 0.3V to 2.8V input range is also available (input impedance > 10M). For most input ranges, the input voltage can swing to +16.5V or –16.5V without damage to the converter.

    A flexible SPI compatible serial interface allows data to be synchronized to an internal or external clock. The ADS7812 is specified at a 40kHz sampling rate over the –40°C to +85°C temperature range.

    View All Description in Datasheet

    		    

    Pricing / Packaging / CAD Design Tools / Samples

    PricePackagingCAD Design ToolsSamples
    DeviceStatusTemp (oC)Price | QuantityPackage | PinsTop Side MarkingPackage QTY | Package CarrierSymbolsFootprintsSamples
    ADS7812PACTIVE 12.40 | 1kuPDIP (N) | 16 View 25 | TUBE Download CAD Format for this Symbol Download CAD Format for this FootprintContact TI Distributor or Sales Office
    ADS7812PBACTIVE 14.20 | 1kuPDIP (N) | 16 View 25 | TUBE Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
    ADS7812PBG4ACTIVE 14.20 | 1kuPDIP (N) | 16 View 25 | TUBE Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
    ADS7812PG4ACTIVE 12.40 | 1kuPDIP (N) | 16 View 25 | TUBE Download CAD Format for this Symbol Download CAD Format for this FootprintContact TI Distributor or Sales Office
    ADS7812UACTIVE-40 to 8511.80 | 1kuSOIC (DW) | 16 View 40 | TUBE Download CAD Format for this Symbol Download CAD Format for this FootprintContact TI Distributor or Sales Office
    ADS7812UBACTIVE-40 to 8515.20 | 1kuSOIC (DW) | 16 View 40 | TUBE Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
    ADS7812UB/1KACTIVE-40 to 8514.20 | 1kuSOIC (DW) | 16 View 1000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
    ADS7812UB/1KE4ACTIVE-40 to 8514.20 | 1kuSOIC (DW) | 16 View 1000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
    ADS7812UB/1KG4ACTIVE-40 to 8514.20 | 1kuSOIC (DW) | 16 View 1000 | LARGE T&R  Purchase Samples
    ADS7812UBE4ACTIVE-40 to 8515.20 | 1kuSOIC (DW) | 16 View 40 | TUBE Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
    ADS7812UBG4ACTIVE-40 to 8515.20 | 1kuSOIC (DW) | 16 View 40 | TUBE  Purchase Samples
    ADS7812UE4ACTIVE-40 to 8511.80 | 1kuSOIC (DW) | 16 View 40 | TUBE Download CAD Format for this Symbol Download CAD Format for this FootprintContact TI Distributor or Sales Office
    ADS7812UG4ACTIVE-40 to 8511.80 | 1kuSOIC (DW) | 16 View 40 | TUBE  Contact TI Distributor or Sales Office

    * 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 12:19 PM GMT, 25 Nov 2009
    RegionCompanyIn StockPurchase
    TI Lead Time*: 20 WeeksADS7812P
    AmericasArrow 5
    Rochester Electronics 13
    AsiaWPI 121
    WorldwideDigiKey 37
    TI Lead Time*: 14 WeeksADS7812PB
    AmericasRochester Electronics >1k
    AsiaFarnell Asia 7
    EuropeFarnell 7
    TI Lead Time*: 14 WeeksADS7812PBG4
    None Reported
    View Distributors
    TI Lead Time*: 20 WeeksADS7812PG4
    WorldwideDigiKey  Available
    TI Lead Time*: 20 WeeksADS7812U
    AmericasNewark 48
    Rochester Electronics >1k
    AsiaWPI 217
    WorldwideDigiKey 393
    TI Lead Time*: 20 WeeksADS7812UB
    AmericasArrow 13
    Avnet 163
    Rochester Electronics 111
    AsiaFarnell Asia 45
    EuropeFarnell 45
    TI Lead Time*: 20 WeeksADS7812UB/1K
    AmericasRochester Electronics 700
    TI Lead Time*: 20 WeeksADS7812UB/1KE4
    None Reported
    View Distributors
    TI Lead Time*: 20 WeeksADS7812UB/1KG4
    None Reported
    View Distributors
    TI Lead Time*: 20 WeeksADS7812UBE4
    None Reported
    View Distributors
    TI Lead Time*: 20 WeeksADS7812UBG4
    None Reported
    View Distributors
    TI Lead Time*: 20 WeeksADS7812UE4
    WorldwideDigiKey  Available
    TI Lead Time*: 20 WeeksADS7812UG4
    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
    ADS7812P RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU N/A for Pkg TypeViewView
    ADS7812PB RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU N/A for Pkg TypeViewView
    ADS7812PBG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU N/A for Pkg TypeViewView
    ADS7812PG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU N/A for Pkg TypeViewView
    ADS7812U RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-3-260C-168 HRViewView
    ADS7812UB RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-3-260C-168 HRViewView
    ADS7812UB/1K RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-3-260C-168 HRViewView
    ADS7812UB/1KE4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-3-260C-168 HRViewView
    ADS7812UB/1KG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-3-260C-168 HRViewView
    ADS7812UBE4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-3-260C-168 HRViewView
    ADS7812UBG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-3-260C-168 HRViewView
    ADS7812UE4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-3-260C-168 HRViewView
    ADS7812UG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-3-260C-168 HRViewView

    * 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 ADS7812 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

    Part # Name Product Family Comments
    ADS8506   12-Bit 40KSPS Analog-to-Digital Converter w/Serial Interface and Reference Parallel   DATA CONVERTERS - ANALOG TO DIGITAL CONVERTER   The device has the SAME FUNCTIONALITY as the compared device, but is not pin-for-pin equivalent and may not be parametrically equivalent.  Has a higher sampling rate (80kSPS) has both serial and parallel output interfaces  
    ADS8513   16-Bit 40KSPS Low Power Sampling A/D Converter w/IR & Serial Interface and TAG   DATA CONVERTERS - ANALOG TO DIGITAL CONVERTER   The device has the SAME FUNCTIONALITY as the compared device, but is not pin-for-pin equivalent and may not be parametrically equivalent.  16-bit equivalent device  
    REF102   Precision Voltage Reference   VOLTAGE REFERENCE - SERIES VOLTAGE REFERENCE      
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    DRV594 +/-3 A High-Efficiency PWM Power Driver SPECIAL FUNCTION AMPLIFIER-PWM POWER DRIVER TI customers also evaluated this product.
    XTR105 4-20mA Current Transmitter with Sensor Excitation and Linearization SENSORS, SENSOR CONDITIONING, 4-20MA TRANSMITTER-4-20MA CONDITIONING TI customers also evaluated this product.
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