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ADS7881 Status: ACTIVE

2.7V-5.25V Digital, 5V Analog, 12 Bit, 4MSPS, Parallel ADC with Ref


      
         
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See Also

  • ADS7891 - The device has the SAME FUNCTIONALITY as the compared device, but is not pin-for-pin equivalent and may not be parametrically equivalent.  14 bit equivalent device at 3MSPS
  • ADS8401 - 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 at 1.25MSPS
 ADS7881
Resolution(Bits)12  
Sample Rate (max)4MSPS  
ArchitectureSAR  
Power Consumption(Typ)(mW)95  
SINAD(dB)71.5  
SNR(dB)71.5  
SFDR(dB)90  
DNL(Max)(+/-LSB)1  
INL(Max)(+/-LSB)1  
No Missing Codes(Bits)12  
No. of Supplies2  
Analog Voltage AV/DD(Min)(V)4.75  
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  
Reference ModeInt and Ext  
RatingCatalog  
Pin/Package48TQFP, 48QFN  
# Input Channels1  
 Samples
 Inventory

Customers Who Evaluated This Product Also Evaluated

  • ADS7882: 2.7V-5.25V Digital, 5V Analog, 12 Bit, 3MSPS, Parallel ADC with Ref
  • TL431A: Adjustable Precision Shunt Regulator
  • ADS7846: 4-wire Touch Screen Controller
  • PGA202: Digitally Controlled Programmable-Gain Instrumentation Amp

Product Information

Features

  • 4 MHz Sample Rate, 12-Bit Resolution
  • Zero Latency
  • Unipolar, Pseudo Differential Input, Range:
    • 0 V to 2.5 V
  • High Speed Parallel Interface
  • 71 dB SNR and –88.5 dB THD at 1 MHz I/P
  • Power Dissipation 95 mW at 4 MSPS
  • Nap Mode (10 mW Power Dissipation)
  • Power Down (10 µW)
  • Internal Reference
  • Internal Reference Buffer
  • 48-Pin TQFP Package
  • APPLICATIONS
    • Optical Networking (DWDM, MEMS Based Switching)
    • Spectrum Analyzers
    • High Speed Data Acquisition Systems
    • High Speed Close-Loop Systems
    • Telecommunication
    • Ultra-Sound Detection

Description

The ADS7881 is a 12-bit 4-MSPS A-to-D converter with 2.5-V internal reference. The device includes a capacitor based SAR A/D converter with inherent sample and hold. The device offers a 12-bit parallel interface with an additional byte mode that provides easy interface with 8-bit processors. The device has a pseudo-differential input stage.

The –IN swing of ±200 mV is useful to compensate for ground voltage mismatch between the ADC and sensor and also to cancel common-mode noise. With nap mode enabled, the device operates at lower power when used at lower conversion rates. The device is available in a 48-pin TQFP package.

    

Pricing / Packaging / CAD Design Tools / Samples

PricePackagingCAD Design ToolsSamples
DeviceStatusTemp (oC)Price | QuantityPackage | PinsTop Side MarkingPackage QTY | Package CarrierSymbolsFootprintsSamples
ADS7881IPFBRACTIVE-40 to 857.35 | 1kuTQFP (PFB) | 48 View 1000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
ADS7881IPFBRG4ACTIVE-40 to 857.35 | 1kuTQFP (PFB) | 48 View 1000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
ADS7881IPFBTACTIVE-40 to 858.10 | 1kuTQFP (PFB) | 48 View 250 | SMALL T&R Download CAD Format for this Symbol Download CAD Format for this Footprint
ADS7881IPFBTG4ACTIVE-40 to 858.10 | 1kuTQFP (PFB) | 48 View 250 | SMALL T&R Download CAD Format for this Symbol Download CAD Format for this Footprint
ADS7881IRGZRACTIVE-40 to 857.35 | 1kuQFN (RGZ) | 48 View 2500 | LARGE T&R Download CAD Format for this Symbol Purchase Samples
ADS7881IRGZRG4ACTIVE-40 to 857.35 | 1kuQFN (RGZ) | 48 View 2500 | LARGE T&R Download CAD Format for this Symbol Purchase Samples
ADS7881IRGZTACTIVE-40 to 858.10 | 1kuQFN (RGZ) | 48 View 250 | SMALL T&R Download CAD Format for this Symbol 
ADS7881IRGZTG4ACTIVE-40 to 858.10 | 1kuQFN (RGZ) | 48 View 250 | SMALL T&R Download CAD Format for this Symbol 

* 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 WeeksADS7881IPFBR
WorldwideDigiKey  Available
TI Lead Time*: 20 WeeksADS7881IPFBRG4
WorldwideDigiKey  Available
TI Lead Time*: 20 WeeksADS7881IPFBT
AmericasAvnet 250
Newark 63
Rochester Electronics 430
AsiaFarnell Asia 63
WPI 171
WorldwideDigiKey 182
TI Lead Time*: 20 WeeksADS7881IPFBTG4
WorldwideDigiKey  Available
TI Lead Time*: 20 WeeksADS7881IRGZR
WorldwideDigiKey  Available
TI Lead Time*: 20 WeeksADS7881IRGZRG4
WorldwideDigiKey  Available
TI Lead Time*: 16 WeeksADS7881IRGZT
WorldwideDigiKey 174
Mouser Electronics 245
TI Lead Time*: 16 WeeksADS7881IRGZTG4
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
ADS7881IPFBR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
ADS7881IPFBRG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
ADS7881IPFBT RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
ADS7881IPFBTG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
ADS7881IRGZR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
ADS7881IRGZRG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
ADS7881IRGZT RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
ADS7881IRGZTG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView

* 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 ADS7881 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
ADS7881EVM Evaluation ModuleADS7881EVMTexas InstrumentsDevelopment Boards/EVMs
DCPFREETOOL Software Plug-In to Code Composer StudioDCPFREETOOLTexas InstrumentsUtilities/Plug-Ins

Part # Name Product Family Comments
ADS7891   2.7V-5.25V Digital, 5V Analog, 14 bit, 3 MSPS, Parallel ADC W/Ref   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.  14 bit equivalent device at 3MSPS  
ADS8401   16 Bit 1.25MSPS Parallel ADC W Ref   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 at 1.25MSPS  
Customers Who Evaluated This Product Also Evaluated...
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