ADS8321 Status: ACTIVE

16-Bit, High Speed, MicroPower Sampling Analog-to-Digital Converter

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See Also

  • ADS8317 - The device has the SAME FUNCTIONALITY and PINOUT as the compared device but is NOT an exact equivalent.  Equivalent device with higher sampling rate (200kSPS)
  • ADS8343 - The device has the SAME FUNCTIONALITY as the compared device, but is not pin-for-pin equivalent and may not be parametrically equivalent.  2-differential input equivalent device
  • ADS8345 - The device has the SAME FUNCTIONALITY as the compared device, but is not pin-for-pin equivalent and may not be parametrically equivalent.  4-differential input equivalent device

View all related products

Datasheet

Download - PDF Icon
  • ADS8321: 16-Bit, High Speed, MicroPower Sampling Analog-to-Digital Converter (Rev. B) (ads8321.pdf, 451 KB)
    16 Sep 2004 Download

 ADS8320 ADS8321ADS8324 ADS8325 
Resolution(Bits)16  16  14  16  
Sample Rate (max)100kSPS  100kSPS  50kSPS  100kSPS  
ArchitectureSAR  SAR  SAR  SAR  
Power Consumption(Typ)(mW)1.95  5.5  2.5  2.25  
SINAD(dB)84  84  78  91  
SNR(dB)92  87  78  91  
SFDR(dB)86  86  85  108  
DNL(Max)(+/-LSB)2  2  2  2  
INL(Max)(+/-LSB)8  8  2  4  
No Missing Codes(Bits)15  15  14  16  
No. of Supplies1  1  1  1  
Analog Voltage AV/DD(Min)(V)2.7  4.75  1.8  2.7  
Analog Voltage AV/DD(Max)(V)5.25  5.25  3.6  5.5  
Logic Voltage DV/DD(Min)(V)2.7  4.75  1.8  2.7  
Logic Voltage DV/DD(Max)(V)5.25  5.25  3.6  5.5  
Input Configuration RangeVref  +/-Vref at +Vref  +/-Vref at +Vref  Vref  
Reference ModeExt  Ext  Ext  Ext  
RatingCatalog  Catalog  Catalog  Catalog  
Pin/Package8MSOP  8MSOP  8MSOP  8MSOP,8SON  
# Input Channels1  1  1  1  
 SamplesSamplesSamplesSamples
 InventoryInventoryInventoryInventory

Customers Who Evaluated This Product Also Evaluated

  • ADS8320: 16-Bit, High-Speed, 2.7V to 5V Micro Power Sampling Analog-to-Digital Converter
  • ADS8325: 16-Bit, 100kSPS Serial Out, 2.7V to 5.5V Micro Power Sampling ADC
  • TLV5618A: 12-Bit, 2.5 us Dual DAC, Serial Input, Pgrmable Settling Time, Q temp available
  • TLV431A: Low Voltage Adjustable Precision Shunt Regulator
  • TVP5146M2: 10-bit High Quality Single-Chip Digital Video Decoder That Digitizes And Decodes NTSC/PAL/SECAM

Product Information

Features

  • BIPOLAR INPUT RANGE
  • 100kHz SAMPLING RATE
  • MICRO POWER:
  • 4.5mW at 100kHz
  • 1mW at 10kHz
  • POWER DOWN: 3&mirco;A max
  • MSOP-8 PACKAGE
  • PIN-COMPATIBLE TO ADS7816 AND ADS7822
  • SERIAL (SPI/SSI) INTERFACE
  • APPLICATIONS
    • BATTERY OPERATED SYSTEMS
    • REMOTE DATA ACQUISITION
    • ISOLATED DATA ACQUISITION
    • SIMULTANEOUS SAMPLING, MULTI-CHANNEL SYSTEMS
    • INDUSTRIAL CONTROLS
    • ROBOTICS
    • VIBRATION ANALYSIS

All thradmarks are the property of their respective owners.

Description

The ADS8321 is a 16-bit sampling analog-to-digital converter (ADC) with tested specifications over a 4.75V to 5.25V supply range. It requires very little power even when operating at the full 100kHz data rate. At lower data rates, the high speed of the device enables it to spend most of its time in the power-down mode—the average power dissipation is less than 1mW at 10kHz data rate.

The ADS8321 also features a synchronous serial (SPI/SSI compatible) interface, and a differential input. The reference voltage can be set to any level within the range of 500mV to VCC/2.

Ultra-low power and small size make the ADS8321 ideal for portable and battery-operated systems. It is also a perfect fit for remote data acquisition modules, simultaneous multi-channel systems, and isolated data acquisition. The ADS8321 is available in an MSOP-8 package.

    

Pricing / Packaging / CAD Design Tools / Samples

PricePackagingCAD Design ToolsSamples
DeviceStatusTemp (oC)Price | QuantityPackage | PinsTop Side MarkingPackage QTY | Package CarrierSymbolsFootprintsSamples
ADS8321E/250ACTIVE-40 to 855.70 | 1kuMSOP (DGK) | 8 View 250 | SMALL T&R Download CAD Format for this Symbol Download CAD Format for this Footprint
ADS8321E/250G4ACTIVE-40 to 855.70 | 1kuMSOP (DGK) | 8 View 250 | SMALL T&R Download CAD Format for this Symbol Download CAD Format for this Footprint
ADS8321E/2K5ACTIVE 5.15 | 1kuMSOP (DGK) | 8 View 2500 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
ADS8321E/2K5G4ACTIVE 5.15 | 1kuMSOP (DGK) | 8 View 2500 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
ADS8321EB/250ACTIVE 6.45 | 1kuMSOP (DGK) | 8 View 250 | SMALL T&R Download CAD Format for this Symbol Download CAD Format for this Footprint
ADS8321EB/250G4ACTIVE 6.45 | 1kuMSOP (DGK) | 8 View 250 | SMALL T&R Download CAD Format for this Symbol Download CAD Format for this Footprint
ADS8321EB/2K5ACTIVE 5.95 | 1kuMSOP (DGK) | 8 View 2500 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
ADS8321EB/2K5G4ACTIVE 5.95 | 1kuMSOP (DGK) | 8 View 2500 | 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

  TI Inventory Status Reported Distributor Inventory
ADS8321E/250As of 10:17 AM GMT, 19 Nov 2008As of 10:17 AM GMT, 19 Nov 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 0*  20 Weeks AmericasArrow 250
  DigiKey >1k
  EuropeAvnet-SILICA 50
ADS8321E/250G4As of 10:17 AM GMT, 19 Nov 2008As of 10:17 AM GMT, 19 Nov 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 0*  20 Weeks AmericasAvnet >1k
  EuropeFarnell 1
ADS8321E/2K5As of 10:17 AM GMT, 19 Nov 2008As of 10:17 AM GMT, 19 Nov 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 0* 20 WeeksNone Reported
View Distributors
   
ADS8321E/2K5G4As of 10:17 AM GMT, 19 Nov 2008As of 10:17 AM GMT, 19 Nov 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 0* 20 WeeksNone Reported
View Distributors
   
ADS8321EB/250As of 10:17 AM GMT, 19 Nov 2008As of 10:17 AM GMT, 19 Nov 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 0*  20 Weeks AmericasArrow >1k
  DigiKey >1k
  EuropeEBV Elektronik >1k
  Spoerle 250
ADS8321EB/250G4As of 10:17 AM GMT, 19 Nov 2008As of 10:17 AM GMT, 19 Nov 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 0* 20 WeeksNone Reported
View Distributors
   
ADS8321EB/2K5As of 10:17 AM GMT, 19 Nov 2008As of 10:17 AM GMT, 19 Nov 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 0* 20 WeeksNone Reported
View Distributors
   
ADS8321EB/2K5G4As of 10:17 AM GMT, 19 Nov 2008As of 10:17 AM GMT, 19 Nov 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 0* 20 WeeksNone Reported
View Distributors
   
View all Distributors  

* Our information is updated daily, so please check back with us soon if this does not meet your needs. You may also contact your TI Authorized Distributor , including those listed above, for real time stock information.

** 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
ADS8321E/250 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
ADS8321E/250G4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
ADS8321E/2K5 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
ADS8321E/2K5G4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
ADS8321EB/250 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
ADS8321EB/250G4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
ADS8321EB/2K5 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
ADS8321EB/2K5G4 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

Datasheets

  • ADS8321: 16-Bit, High Speed, MicroPower Sampling Analog-to-Digital Converter (Rev. B) (ads8321.pdf, 451 KB)
    16 Sep 2004 Download

Application Notes

  • A Glossary of Analog-to-Digital Specifications and Performance Characteristics (Rev. A) (sbaa147a.htm, 8 KB)
    12 Jan 2008 Abstract
  • Getting the most out of your instrumentation amplifier design (slyt226.pdf, 177 KB)
    10 Oct 2005 Download
  • Interfacing the MSOP8EVM to MSP430 Processors (slaa209.htm, 9 KB)
    28 Jul 2004 Abstract
  • Shelf-Life Evaluation of Lead-Free Component Finishes (szza046.htm, 8 KB)
    24 May 2004 Abstract
  • Interfacing the MSOP8EVM to TMS320C5x Processors (slaa201.htm, 8 KB)
    28 Apr 2004 Abstract
  • Interfacing the MSOP8EVM to TMS320C6x Processors (slaa190.htm, 9 KB)
    02 Dec 2003 Abstract
  • Thermal and Electrical Properties of Selected Packaging Materials (sbfa010.htm, 8 KB)
    04 Oct 2000 Abstract
  • Analog-to-Digital Converter Grounding Practices Affect System Performance (sbaa052.htm, 8 KB)
    02 Oct 2000 Abstract
  • Principles of Data Acquisition and Conversion (sbaa051.htm, 8 KB)
    02 Oct 2000 Abstract
  • Interleaving Analog-to-Digital Converters (sbaa049.htm, 8 KB)
    02 Oct 2000 Abstract
  • What Designers Should Know About Data Converter Drift (sbaa046.htm, 8 KB)
    02 Oct 2000 Abstract
  • High Speed Data Conversion (sbaa045.htm, 8 KB)
    02 Oct 2000 Abstract

View Application Notes for Analog to Digital Converters

User Guides

  • Modular MSOP8EVM User's Guide (slau115.htm, 8 KB)
    22 Sep 2003 Abstract

View User Guides for Analog to Digital Converters

More Literature

View More Literature for Analog to Digital Converters

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
ADS8321 Evaluation ModuleADS8321EVMTexas InstrumentsDevelopment Boards/EVMs
DCPFREETOOL Software Plug-In to Code Composer StudioDCPFREETOOLTexas InstrumentsUtilities/Plug-Ins
  • Data Converter Plug-in for Code Composer Studio (Rev. D)(slac087d.zip, 5199 KB )
               05 May 2008 zip
  • Jitter and SNR calculator(slac133.zip, 2 KB )
               24 Apr 2007 zip

 Alternative Products - Are similar to ADS8321
Part #NameComments
ADS8317 16-Bit, Pseudo Bipolar, Fully Diff Input, 250kSPS Serial Out, 2.7V to 5.5V Micro Power Sampling ADC The device has the SAME FUNCTIONALITY and PINOUT as the compared device but is NOT an exact equivalent. Equivalent device with higher sampling rate (200kSPS) 
ADS8343 16-Bit, 4-Channel Serial Output Sampling 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. 2-differential input equivalent device 
ADS8345 16-Bit, 8-Channel Serial Output Sampling 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. 4-differential input equivalent device 
ADS8326 16-Bit, Pseudo Diff Input, 250kSPS Serial Out, 2.7V to 5.5V Micro Power Sampling ADC The device has the SAME FUNCTIONALITY as the compared device, but is not pin-for-pin equivalent and may not be parametrically equivalent. Equivalent device at higher sampling rate (250kSPS) with pseudo differential input configuration 
Customers Who Evaluated This Product Also Evaluated...
ADS832016-Bit, High-Speed, 2.7V to 5V Micro Power Sampling Analog-to-Digital ConverterTI customers also evaluated this product.
ADS832516-Bit, 100kSPS Serial Out, 2.7V to 5.5V Micro Power Sampling ADCTI customers also evaluated this product.
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