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ADS1255 Status: ACTIVE

24 Bit, 30kSPS Very Low Noise Delta-Sigma ADC


      
         
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See Also

  • ADS1271 - Similar device with excellent AC performance in addition to the DC performance
  • ADS1256 - 4 channel version of ADS1255
  • ADS1258 - 8 channel version of ADS1255
 ADS1250 ADS1251 ADS1252 ADS1253 ADS1254 ADS1255ADS1258 
Resolution(Bits)20  24  24  24  24  24  24  
Sample Rate (max)25kSPS  20kSPS  41kSPS  20kSPS  20kSPS  30kSPS  125kSPS  
ArchitectureDelta-Sigma  Delta-Sigma  Delta-Sigma  Delta-Sigma  Delta-Sigma  Delta-Sigma  Delta-Sigma  
Power Consumption(Typ)(mW)75  7.5  40  7.5  4.36  36  42  
DNL(Max)(+/-LSB)1  1  1  1  1  2  1  
INL(Max)(+/-LSB)0.0012%  0.0002%  0.0003%  0.0002%  0.0002%  0.0003%  0.0003%  
No Missing Codes(Bits)20  24  24  24  24  24  24  
ENOB(Bits)18  19  19  19  19  23  21.6  
No. of Supplies1  1  1  1  2  2  2  
Analog Voltage AV/DD(Min)(V)4.75  4.75  4.75  4.75  4.75  4.75  4.75  
Analog Voltage AV/DD(Max)(V)5.25  5.25  5.25  5.25  5.25  5.25  5.25  
Logic Voltage DV/DD(Min)(V)4.75  4.75  4.75  4.75  1.8  1.8  2.5  
Logic Voltage DV/DD(Max)(V)5.25  5.25  5.25  5.25  3.6  3.6  3.6  
Input Configuration RangeVref/PGA (1-8)  Vref  Vref  Vref  Vref  2Vref/PGA(1-64)  1.06Vref  
Reference ModeExt  Ext  Ext  Ext  Ext  Ext  Ext  
RatingCatalog  Catalog  Catalog  Catalog  Catalog  Catalog  Catalog  
Pin/Package16SOIC  8SOIC  8SOIC  16SSOP/QSOP  20SSOP/QSOP  20SSOP  48QFN  
# Input Channels1  1  1  4  4  2  16  
 SamplesSamplesSamplesSamplesSamplesSamplesSamples
 InventoryInventoryInventoryInventoryInventoryInventoryInventory

Customers Who Evaluated This Product Also Evaluated

  • ADS1258: 24 Bit, Fast Channel Cycling Delta-Sigma ADC
  • ADS1256: 24 Bit, 30kSPS Very Low Noise Delta-Sigma ADC with Multiplexer
  • ADS1271: 24-Bit, 105kSPS Industrial Delta-Sigma ADC
  • SN74LVC1G08: Single 2-Input Positive-AND Gate
  • SN74LVC1G125: Single Bus Buffer Gate With 3-State Outputs
  • REF200: Dual Current Source/Current Sink

More Related Products

Product Information

Features

  • 24 Bits, No Missing Codes
    • All Data Rates and PGA Settings
  • Up to 23 Bits Noise-Free Resolution
  • ±0.0010% Nonlinearity (max)
  • Data Output Rates to 30kSPS
  • Fast Channel Cycling
    • 18.6 Bits Noise-Free (21.3 Effective Bits) at 1.45kHz
  • One-Shot Conversions with Single-Cycle Settling
  • Flexible Input Multiplexer with Sensor Detect
    • Four Differential Inputs (ADS1256 only)
    • Eight Single-Ended Inputs (ADS1256 only)
  • Chopper-Stabilized Input Buffer
  • Low-Noise PGA: 27nV Input-Referred Noise
  • Self and System Calibration for All PGA Settings
  • 5V Tolerant SPI™-Compatible Serial Interface
  • Analog Supply: 5V
  • Digital Supply: 1.8V to 3.6V
  • Power Dissipation
    • As Low as 38mW in Normal Mode
    • 0.4mW in Standby Mode

View All Features in Datasheet

Description

The ADS1255 and ADS1256 are extremely low-noise, 24-bit analog-to-digital (A/D) converters. They provide complete high-resolution measurement solutions for the most demanding applications.

The converter is comprised of a 4th-order, delta-sigma (ΔΣ) modulator followed by a programmable digital filter. A flexible input multiplexer handles differential or single-ended signals and includes circuitry to verify the integrity of the external sensor connected to the inputs. The selectable input buffer greatly increases the input impedance and the low-noise programmable gain amplifier (PGA) provides gains from 1 to 64 in binary steps. The programmable filter allows the user to optimize between resolution of up to 23 bits noise-free and data rate of up to 30k samples per second (SPS).

View All Description in Datasheet

    

Pricing / Packaging / CAD Design Tools / Samples

PricePackagingCAD Design ToolsSamples
DeviceStatusTemp (oC)Price | QuantityPackage | PinsTop Side MarkingPackage QTY | Package CarrierSymbolsFootprintsSamples
ADS1255IDBRACTIVE-40 to 857.00 | 1kuSSOP (DB) | 20 View 1000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
ADS1255IDBRG4ACTIVE-40 to 857.00 | 1kuSSOP (DB) | 20 View 1000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
ADS1255IDBTACTIVE-40 to 857.65 | 1kuSSOP (DB) | 20 View 250 | SMALL T&R Download CAD Format for this Symbol Download CAD Format for this Footprint
ADS1255IDBTG4ACTIVE-40 to 857.65 | 1kuSSOP (DB) | 20 View 250 | SMALL T&R Download CAD Format for this Symbol Download CAD Format for this Footprint

* 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 12:20 PM GMT, 20 Nov 2009
RegionCompanyIn StockPurchase
TI Lead Time*: 20 WeeksADS1255IDBR
EuropeCompel 5
TI Lead Time*: 20 WeeksADS1255IDBRG4
None Reported
View Distributors
TI Lead Time*: 20 WeeksADS1255IDBT
None Reported
View Distributors
TI Lead Time*: 20 WeeksADS1255IDBTG4
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
ADS1255IDBR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
ADS1255IDBRG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
ADS1255IDBT RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
ADS1255IDBTG4 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 ADS1255 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
ADS1256 Evaluation ModuleADS1256EVMTexas InstrumentsDevelopment Boards/EVMs

Part # Name Product Family Comments
ADS1271   24-Bit, 105kSPS Industrial Delta-Sigma ADC   DATA CONVERTERS - ANALOG TO DIGITAL CONVERTER   Similar device with excellent AC performance in addition to the DC performance  
ADS1256   24 Bit, 30kSPS Very Low Noise Delta-Sigma ADC with Multiplexer   DATA CONVERTERS - ANALOG TO DIGITAL CONVERTER   4 channel version of ADS1255  
ADS1258   24 Bit, Fast Channel Cycling Delta-Sigma ADC   DATA CONVERTERS - ANALOG TO DIGITAL CONVERTER   8 channel version of ADS1255  
OPA277   High Precision Operational Amplifiers   PRECISION AMPLIFIER - LOW OFFSET VOLTAGE   OPERATIONAL AMPLIFIER    
OPA211   1.1nV/rtHz Noise, Low Power, Precision Operational Amplifier in Tiny DFN-8 Package   PRECISION AMPLIFIER - LOW NOISE   OPERATIONAL AMPLIFIER    
Customers Who Evaluated This Product Also Evaluated...
ADS1258 24 Bit, Fast Channel Cycling Delta-Sigma ADC DATA CONVERTERS-ANALOG TO DIGITAL CONVERTER TI customers also evaluated this product.
ADS1256 24 Bit, 30kSPS Very Low Noise Delta-Sigma ADC with Multiplexer DATA CONVERTERS-ANALOG TO DIGITAL CONVERTER TI customers also evaluated this product.
ADS1271 24-Bit, 105kSPS Industrial Delta-Sigma ADC DATA CONVERTERS-ANALOG TO DIGITAL CONVERTER TI customers also evaluated this product.
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