ADS1271 Status: ACTIVE

24-Bit, 105kSPS Industrial Delta-Sigma ADC

      
         
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See Also

  • ADS1274 - 4 channel version of ADS1271
  • ADS1278 - 8 channel version of ADS1271
  • ADS1255 - The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device. 

View all related products

Datasheet

Download - PDF Icon
  • 24-Bit, Wide Bandwidth Analog-to-Digital Converter (Rev. F) (ads1271.pdf, 588 KB)
    23 Oct 2007 Download

 ADS1271ADS1274 ADS1278 ADS1672 
Resolution(Bits)24  24  24  24  
Sample Rate (max)105kSPS  128kSPS  128kSPS  625  
ArchitectureDelta-Sigma  Delta-Sigma  Delta-Sigma  Delta Sigma  
Power Consumption(Typ)(mW)92  275  530  350  
SINAD(dB)   105  
SNR(dB)109  111  111  105  
SNR(Typ)(dB)   105  
SFDR(dB)-108  -109  -109  115  
DNL(Max)(+/-LSB)1  1  1  1  
INL(Max)(+/-LSB)0.0006%  0.0003%  0.0003%  2  
No Missing Codes(Bits)24  24  24  24  
ENOB(Bits)   19.2  
No. of Supplies2  3  3  2  
Analog Voltage AV/DD(Min)(V)4.75  4.75  4.75  4.75  
Analog Voltage AV/DD(Max)(V)5.25  5.25  5.25  5.25  
Logic Voltage DV/DD(Min)(V)1.65  1.65  1.65  2.7  
Logic Voltage DV/DD(Max)(V)3.6  3.6  3.6  3.3  
Input Configuration Range1.06Vref  Vref  Vref  +/-Vref  
Reference ModeExt  Ext  Ext  Ext  
RatingCatalog  Catalog  Catalog  Catalog  
Pin/Package16TSSOP  64HTQFP  64HTQFP  64TQFP  
# Input Channels1  4  8  1  
 SamplesSamplesSamplesSamples
 InventoryInventoryInventoryInventory

Customers Who Evaluated This Product Also Evaluated

  • ADS1258: 24 Bit, Fast Channel Cycling Delta-Sigma ADC
  • ADS8505: 16-Bit 250kHz CMOS Analog-to-Digital Converter w/Parallel Interface 2.5V Internal Reference
  • ADS8370: 16-Bit 600KSPS Serial ADC with Ref and Unipolar Pseudo Diff Input
  • MSP430F449: 16-Bit Ultra-Low-Power MCU, 60kB Flash, 2048B RAM, 12-Bit ADC, 2 USARTs HW Multiplier, 160 Seg LCD
  • DAC8831: 16-Bit, Ultra-Low Power, Voltage Output Digital to Analog Converter
  • MSP430F1611: 16-bit Ultra-Low-Power MCU, 48kB Flash, 10240B RAM, 12-Bit ADC, Dual DAC, 2 USART, I2C, HW Mult, DMA

More Related Products

Product Information

Features

  • 105kSPS Data Rate
  • AC Performance:
    51kHz Bandwidth
    109dB SNR (High-Resolution Mode)
    –108dB THD
  • DC Accuracy:
    1.8µV/°C Offset Drift
    2ppm/°C Gain Drift
  • Selectable Operating Modes:
    High-Speed: 105kSPS Data Rate
    High-Resolution: 109dB SNR
    Low-Power: 35mW Dissipation
  • Power-Down Control
  • Digital Filter:
    Linear Phase Response
    Passband Ripple: ±0.005dB
    Stop Band Attenuation: 100dB
  • Internal Offset Calibration On Command
  • Selectable SPI&™ or Frame Sync Serial Interface
  • Designed for Multichannel Systems:
    Daisy-Chainable Serial Interface
    Easy Synchronization
  • Simple Pin-Driven Control
  • Modulator Output Option
  • Specified from –40°C to +105°C
  • Analog Supply: 5V
  • Digital Supply: 1.8V to 3.3V
  • APPLICATIONS
    • Vibration/Modal Analysis
    • Acoustics
    • Dynamic Strain Gauges
    • Pressure Sensors
    • Test and Measurement

SPI is a trademark of Motorola Inc. All other trademarks are the property of their respective owners.

Description

The ADS1271 is a 24-bit, delta-sigma analog-to-digital converter (ADC) with a data rate up to 105kSPS. It offers a unique combination of excellent DC accuracy and outstanding AC performance. The high-order, chopper-stabilized modulator achieves very low drift with low in-band noise. The onboard decimation filter suppresses modulator and signal out-of-band noise. The ADS1271 provides a usable signal bandwidth up to 90% of the Nyquist rate with less than 0.005dB of ripple.

Traditionally, industrial delta-sigma ADCs offering good drift performance use digital filters with large passband droop. As a result, they have limited signal bandwidth and are mostly suited for DC measurements. High-resolution ADCs in audio applications offer larger usable bandwidths, but the offset and drift specification are significantly weaker than their industrial counterparts. The ADS1271 combines these converters, allowing high-precision industrial measurement with excellent DC and AC specifications ensured over an extended industrial temperature range.

Three operating modes allow for optimization of speed, resolution, and power. A selectable SPI or a frame-sync serial interface provides for convenient interfacing to microcontrollers or DSPs. The output from the modulator is accessible for external digital filter applications. All operations, including internal offset calibration, are controlled directly by pins; there are no registers to program.

    

Pricing / Packaging / CAD Design Tools / Samples

PricePackagingCAD Design ToolsSamples
DeviceStatusTemp (oC)Price | QuantityPackage | PinsTop Side MarkingPackage QTY | Package CarrierSymbolsFootprintsSamples
ADS1271IBPWACTIVE 10.60 | 100uTSSOP (PW) | 16 View 90 | TUBE Download CAD Format for this Symbol Download CAD Format for this Footprint
ADS1271IBPWG4ACTIVE 10.60 | 100uTSSOP (PW) | 16 View 90 | TUBE Download CAD Format for this Symbol Download CAD Format for this Footprint
ADS1271IBPWRACTIVE 10.60 | 100uTSSOP (PW) | 16 View 2000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
ADS1271IBPWRG4ACTIVE 10.60 | 100uTSSOP (PW) | 16 View 2000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
ADS1271IPWACTIVE-40 to 1257.90 | 100uTSSOP (PW) | 16 View 90 | TUBE Download CAD Format for this Symbol Download CAD Format for this Footprint
ADS1271IPWG4ACTIVE-40 to 1257.90 | 100uTSSOP (PW) | 16 View 90 | TUBE Download CAD Format for this Symbol Download CAD Format for this Footprint
ADS1271IPWRACTIVE-40 to 1257.90 | 100uTSSOP (PW) | 16 View 2500 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
ADS1271IPWRG4ACTIVE-40 to 1257.90 | 100uTSSOP (PW) | 16 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
ADS1271IBPWAs of 9:22 AM GMT, 15 Oct 2008As of 9:22 AM GMT, 15 Oct 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 0* >10k | 5 Dec 8 Weeks AmericasArrow 7
  Avnet 171
  Newark 31
  AsiaWPI 114
ADS1271IBPWG4As of 9:22 AM GMT, 15 Oct 2008As of 9:22 AM GMT, 15 Oct 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 0* >10k | 5 Dec 8 Weeks None Reported
View Distributors
   
ADS1271IBPWRAs of 9:22 AM GMT, 15 Oct 2008As of 9:22 AM GMT, 15 Oct 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 >10k* >10k | 5 Dec 4 Weeks None Reported
View Distributors
   
ADS1271IBPWRG4As of 9:22 AM GMT, 15 Oct 2008As of 9:22 AM GMT, 15 Oct 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 >10k* >10k | 5 Dec 4 Weeks None Reported
View Distributors
   
ADS1271IPWAs of 9:22 AM GMT, 15 Oct 2008As of 9:22 AM GMT, 15 Oct 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 0* >10k | 8 Dec 8 Weeks AmericasArrow 97
  Avnet 50
  Mouser Electronics >1k
  AsiaWPI 208
  EuropeAvnet-SILICA 30
  Farnell 310
ADS1271IPWG4As of 9:22 AM GMT, 15 Oct 2008As of 9:22 AM GMT, 15 Oct 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 0* >10k | 8 Dec 8 Weeks EuropeEBV Elektronik 540
  Farnell 383
ADS1271IPWRAs of 9:22 AM GMT, 15 Oct 2008As of 9:22 AM GMT, 15 Oct 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 7990* >10k | 8 Dec 4 Weeks AmericasArrow >1k
ADS1271IPWRG4As of 9:22 AM GMT, 15 Oct 2008As of 9:22 AM GMT, 15 Oct 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 7990* >10k | 8 Dec 4 Weeks EuropeEBV Elektronik >1k
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
ADS1271IBPW RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
ADS1271IBPWG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
ADS1271IBPWR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
ADS1271IBPWRG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
ADS1271IPW RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
ADS1271IPWG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
ADS1271IPWR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
ADS1271IPWRG4 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

  • 24-Bit, Wide Bandwidth Analog-to-Digital Converter (Rev. F) (ads1271.pdf, 588 KB)
    23 Oct 2007 Download

Application Notes

  • A Glossary of Analog-to-Digital Specifications and Performance Characteristics (Rev. A) (sbaa147a.htm, 8 KB)
    12 Jan 2008 Abstract
  • Synchronizing the ADS1271 (sbas355.htm, 8 KB)
    27 Oct 2005 Abstract
  • Shelf-Life Evaluation of Lead-Free Component Finishes (szza046.htm, 8 KB)
    24 May 2004 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
  • Giving Delta-Sigma Converters a Gain Boost with a Front End Analog Gain Stage (sbaa006.htm, 8 KB)
    27 Sep 2000 Abstract
  • Programming Tricks for Higher Conversion Speeds Utilizing Delta Sigma Converters (sbaa005.htm, 8 KB)
    27 Sep 2000 Abstract

View Application Notes for Analog to Digital Converters

User Guides

  • ADS1271EVM User's Guide (Rev. B) (sbau107b.pdf, 409 KB)
    29 Feb 2008 Download

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
ADS1271 Evaluation Module (EVM)ADS1271EVMTexas InstrumentsDevelopment Boards/EVMs
ADS1271 Performance Demonstration Kit (PDK)ADS1271EVM-PDKTexas 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

 Alternative Products - Are similar to ADS1271
Part #NameComments
ADS1274 Quad, 128kHz, Simultaneous Sampling 24-Bit Delta Sigma ADC 4 channel version of ADS1271 
ADS1278 Octal, 128kHz, Simultaneous Sampling 24-Bit Delta Sigma ADC 8 channel version of ADS1271 
ADS1255 24 Bit, 30kSPS Very Low Noise Delta-Sigma ADC The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device.  
ADS1281 High Resolution 24-Bit Analog-to Digital Converter The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device. Higher resolution device 
ADS1282 Ultra High Resolution Delta Sigma ADC with PGA for Seismic and Energy Exploration The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device. 4 channel higher resolution device with onboard PGA 
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