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ADS7871 Status: ACTIVE

14-Bit 48KSPS DAS with ADC, MUX, PGA and Internal Reference


      
         
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 ADS7871
Resolution(Bits)14  
Sample Rate (max)48kSPS  
ArchitectureSAR  
Power Consumption(Typ)(mW)6.5  
DNL(Max)(+/-LSB)0.5  
INL(Max)(+/-LSB)2  
No Missing Codes(Bits)13  
No. of Supplies1  
Analog Voltage AV/DD(Min)(V)2.7  
Analog Voltage AV/DD(Max)(V)5.25  
Logic Voltage DV/DD(Min)(V)2.7  
Logic Voltage DV/DD(Max)(V)5.25  
Input Configuration RangeVref/PGA  
Reference ModeInt  
RatingCatalog  
Pin/Package28SSOP  
# Input Channels8  
 Samples
 Inventory

Customers Who Evaluated This Product Also Evaluated

  • ADS7870: 12-Bit ADC, MUX, PGA and Internal Reference Data Acquisition System
  • TLC3548: 14-bit, 5V, 200KSPS, 8-Channel Unipolar ADC
  • ADS8344: 16-Bit, 8-Channel Serial Output Sampling Analog-to-Digital Converter
  • SN74LVC2G34: Dual Buffer Gate
  • MAX232: Dual EIA-232 Driver/Receiver
  • SN74HC259: 8-Bit Addressable Latches

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Product Information

Features

  • PGA Gains: 1, 2, 4, 5, 8, 10, 16, 20 V/V
  • Programmable Input (Up to 4-Channel Differential/Up to 8-Channel Single-Ended or Some Combination)
  • 1.15-V, 2.048-V, or 2.5-V Internal Reference
  • SPI/DSP Compatible Serial Interface ( 20 MHz)
  • Throughput Rate: 48 kSamples/sec
  • Error Overload Indicator
  • Programmable Output 2s Complement/Binary
  • 2.7-V to 5.5-V Single Supply Operation
  • 4-Bit Digital I/O Via Serial Interface
  • Pin Compatible With ADS7870
  • SSOP-28 Package
  • APPLICATIONS
    • Portable Battery-Powered Systems
    • Low-Power Instrumentation
    • Low-Power Control Systems
    • Smart Sensor Applications

All trademarks are the property of their respective owners.

Description

The ADS7871 (US patents 6140872, 6060874) is a complete low power data acquisition system on a single chip. It consists of a 4-channel differential/8-channel single-ended multiplexer, precision programmable gain amplifier, 14-bit successive approximation analog-to-digital (A/D) converter and a precision voltage reference.

The programmable-gain amplifier provides high input impedance, excellent gain accuracy, good common-mode rejection, and low noise.

For many low-level signals, no external amplification or impedance buffering is needed between the signal source and the A/D input.

The offset voltage of the PGA is auto zeroed. Gains of 1, 2, 4, 5, 8, 10, 16, and 20 V/V allow signals as low as 125 mV to produce full-scale digital outputs.

View All Description in Datasheet

    

Pricing / Packaging / CAD Design Tools / Samples

PricePackagingCAD Design ToolsSamples
DeviceStatusTemp (oC)Price | QuantityPackage | PinsTop Side MarkingPackage QTY | Package CarrierSymbolsFootprintsSamples
ADS7871IDBACTIVE-40 to 855.50 | 1kuSSOP (DB) | 28 View 50 | TUBE Download CAD Format for this Symbol Download CAD Format for this FootprintContact TI Distributor or Sales Office
ADS7871IDBG4ACTIVE-40 to 855.50 | 1kuSSOP (DB) | 28 View 50 | TUBE Download CAD Format for this Symbol Download CAD Format for this FootprintContact TI Distributor or Sales Office
ADS7871IDBRACTIVE-40 to 855.00 | 1kuSSOP (DB) | 28 View 1000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
ADS7871IDBRG4ACTIVE-40 to 855.00 | 1kuSSOP (DB) | 28 View 1000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples

* 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 12:16 PM GMT, 22 Nov 2009
RegionCompanyIn StockPurchase
TI Lead Time*: 20 WeeksADS7871IDB
AmericasArrow 40
Avnet 37
Newark 154
Rochester Electronics 245
AsiaWPI 95
EuropeCompel 246
TI Lead Time*: 20 WeeksADS7871IDBG4
AsiaFarnell Asia 633
EuropeFarnell 614
TI Lead Time*: 20 WeeksADS7871IDBR
EuropeSpoerle >1k
TI Lead Time*: 20 WeeksADS7871IDBRG4
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
ADS7871IDB RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
ADS7871IDBG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
ADS7871IDBR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
ADS7871IDBRG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView

* 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 ADS7871 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
ADS7871 Evaluation ModuleADS7871EVMTexas InstrumentsDevelopment Boards/EVMs

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