ADS1258 Status: ACTIVE

24 Bit, Fast Channel Cycling Delta-Sigma ADC

      
         
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See Also

  • ADS1278 - The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device.  Similar Device with better AC performance
  • ADS1274 - The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device.  4 channel version of ADS1278
  • ADS1256 - The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device.  4 channel version of ADS1258

View all related products


Datasheet

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 ADS1158 ADS1250 ADS1251 ADS1252 ADS1253 ADS1254 ADS1255 ADS1258
Resolution(Bits)16  20  24  24  24  24  24  24  
Sample Rate (max)125KSPS  25kSPS  20kSPS  41kSPS  20kSPS  20kSPS  30kSPS  125kSPS  
ArchitectureDelta-Sigma  Delta-Sigma  Delta-Sigma  Delta-Sigma  Delta-Sigma  Delta-Sigma  Delta-Sigma  Delta-Sigma  
Power Consumption(Typ)(mW)42  75  7.5  40  7.5  4.36  36  42  
DNL(Max)(+/-LSB)1  1  1  1  1  1  2  1  
INL(Max)(+/-LSB)1  0.0012%  0.0002%  0.0003%  0.0002%  0.0002%  0.0003%  0.0003%  
No Missing Codes(Bits)16  20  24  24  24  24  24  24  
ENOB(Bits)16  18  19  19  19  19  23  21.6  
No. of Supplies2  1  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  4.75  
Analog Voltage AV/DD(Max)(V)5.25  5.25  5.25  5.25  5.25  5.25  5.25  5.25  
Logic Voltage DV/DD(Min)(V)2.5  4.75  4.75  4.75  4.75  1.8  1.8  2.5  
Logic Voltage DV/DD(Max)(V)3.6  5.25  5.25  5.25  5.25  3.6  3.6  3.6  
Input Configuration Range1.06 Vref  Vref/PGA (1-8)  Vref  Vref  Vref  Vref  2Vref/PGA(1-64)  1.06Vref  
Reference ModeExt  Ext  Ext  Ext  Ext  Ext  Ext  Ext  
RatingCatalog  Catalog  Catalog  Catalog  Catalog  Catalog  Catalog  Catalog  
Pin/Package48QFN  16SOIC  8SOIC  8SOIC  16SSOP/QSOP  20SSOP/QSOP  20SSOP  48QFN  
# Input Channels16  1  1  1  4  4  2  16  
 SamplesSamplesSamplesSamplesSamplesSamplesSamplesSamples
 InventoryInventoryInventoryInventoryInventoryInventoryInventoryInventory

Other qualified versions of ADS1258

Version Part Number Definition
Enhanced Product ADS1258-EP Supports Defense, Aerospace and Medical Applications

Customers Who Evaluated This Product Also Evaluated

  • ADS1278: Octal, 128kHz, Simultaneous Sampling 24-Bit Delta Sigma ADC
  • ADS1271: 24-Bit, 105kSPS Industrial Delta-Sigma ADC
  • ADS1256: 24 Bit, 30kSPS Very Low Noise Delta-Sigma ADC with Multiplexer
  • TMS320F2808: 32-Bit Digital Signal Controller with Flash
  • INA333: Low Power, Precision Instrumentation Amplifier
  • CC2591: 2.4 GHz RF Front End

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Product Information

Features

  • 24 Bits, No Missing Codes
  • Fixed-Channel or Automatic Channel Scan
  • Fixed-Channel Data Rate: 125kSPS
  • Auto-Scan Data Rate: 23.7kSPS/Channel
  • Single-Conversion Settled Data
  • 16 Single-Ended or 8 Differential Inputs
  • Unipolar (+5V) or Bipolar (±2.5V) Operation
  • Low Noise: 2.8µVRMS at 1.8kSPS
  • 0.0003% Integral Nonlinearity
  • DC Stability (typical):
    0.02µV/°C Offset Drift, 0.4ppm/°C Gain Drift
  • Open-Sensor Detection
  • Conversion Control Pin
  • Multiplexer Output for External Signal Conditioning
  • On-Chip Temperature, Reference, Offset, Gain, and Supply Voltage Readback
  • 42mW Power Dissipation
  • Standby, Sleep, and Power-Down Modes
  • 8 General-Purpose Inputs/Outputs (GPIO)
  • 32.768kHz Crystal Oscillator or External Clock
  • APPLICATIONS
    • Medical, Avionics, and Process Control
    • Machine and System Monitoring
    • Fast Scan Multi-Channel Instrumentation
    • Industrial Systems
    • Test and Measurement Systems

2SPI is a trademark of Motorola, Inc.
All other trademarks are the property of their respective owners.

Description

The ADS1258 is a 16-channel (multiplexed), low-noise, 24-bit, delta-sigma () analog-to-digital converter (ADC) that provides single-cycle settled data at channel scan rates from 1.8k to 23.7k samples per second (SPS) per channel. A flexible input multiplexer accepts combinations of eight differential or 16 single-ended inputs with a full-scale differential range of 5V or true bipolar range of ±2.5V when operating with a 5V reference. The fourth-order delta-sigma modulator is followed by a fifth-order sinc digital filter optimized for low-noise performance.

The differential output of the multiplexer is accessible to allow signal conditioning prior to the input of the ADC. Internal system monitor registers provide supply voltage, temperature, reference voltage, gain, and offset data.

An onboard PLL generates the system clock from a 32.768kHz crystal, or can be overridden by an external clock source. A buffered system clock output (15.7MHz) is provided to drive a microcontroller or additional converters.

Serial digital communication is handled via an SPI™-compatible interface. A simple command word structure controls channel configuration, data rates, digital I/O, monitor functions, etc.

Programmable sensor bias current sources can be used to bias sensors or verify sensor integrity.

The ADS1258 operates from a unipolar +5V or bipolar ±2.5V analog supply and a digital supply compatible with interfaces ranging from 2.7V to 5.25V. The ADS1258 is available in a QFN-48 package.

    

Pricing / Packaging / CAD Design Tools / Samples

PricePackagingCAD Design ToolsSamples
DeviceStatusTemp (oC)Price | QuantityPackage | PinsTop Side MarkingPackage QTY | Package CarrierSymbolsSamples
ADS1258IRTCRACTIVE-40 to 1059.95 | 1kuQFN (RTC) | 48 View 2500 | LARGE T&R Download CAD Format for this SymbolPurchase Samples
ADS1258IRTCRG4ACTIVE-40 to 1059.95 | 1kuQFN (RTC) | 48 View 2500 | LARGE T&R Download CAD Format for this SymbolPurchase Samples
ADS1258IRTCTACTIVE-40 to 10510.95 | 1kuQFN (RTC) | 48 View 250 | SMALL T&R Download CAD Format for this Symbol
ADS1258IRTCTG4ACTIVE-40 to 10510.95 | 1kuQFN (RTC) | 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

  TI Inventory Status Reported Distributor Inventory
ADS1258IRTCRAs of 12:12 PM GMT, 03 Jul 2009As of 12:12 PM GMT, 03 Jul 2009
 Lead TimeRegionCompanyIn StockPurchase
 4 Weeks AmericasDigiKey  Available
ADS1258IRTCRG4As of 12:12 PM GMT, 03 Jul 2009As of 12:12 PM GMT, 03 Jul 2009
 Lead TimeRegionCompanyIn StockPurchase
 4 Weeks AmericasDigiKey  Available
ADS1258IRTCTAs of 12:12 PM GMT, 03 Jul 2009As of 12:12 PM GMT, 03 Jul 2009
 Lead TimeRegionCompanyIn StockPurchase
 4 Weeks AmericasArrow 52
 Avnet >1k
 DigiKey >1k
 Mouser Electronics 387
 Newark 476
 Rochester Electronics 450
 AsiaWPI 404
 EuropeAvnet-SILICA 252
 Compel 426
 Farnell 140
ADS1258IRTCTG4As of 12:12 PM GMT, 03 Jul 2009As of 12:12 PM GMT, 03 Jul 2009
 Lead TimeRegionCompanyIn StockPurchase
 4 Weeks AmericasDigiKey  Available
 EuropeFarnell 147
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
ADS1258IRTCR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
ADS1258IRTCRG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
ADS1258IRTCT RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
ADS1258IRTCTG4 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 ADS1258 Help

Datasheet

Application Notes

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User Guides

View User Guides for Analog to Digital Converters

More Literature

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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
ADS1258EVM Evaluation ModuleADS1258EVMTexas InstrumentsDevelopment Boards/EVMs
ADS1258EVM-PDK Evaluation ModuleADS1258EVM-PDKTexas InstrumentsDevelopment Boards/EVMs
DCPFREETOOL Software Plug-In to Code Composer StudioDCPFREETOOLTexas InstrumentsUtilities/Plug-Ins
ADCPro(TM) Analog-to-Digital Converter Evaluation SoftwareADCPRO Texas Instruments Application Software 

Part # Name Product Family Comments
ADS1278   Octal, 128kHz, Simultaneous Sampling 24-Bit Delta Sigma ADC     The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device.  Similar Device with better AC performance  
ADS1274   Quad, 128kHz, Simultaneous Sampling 24-Bit Delta Sigma ADC     The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device.  4 channel version of ADS1278  
ADS1256   24 Bit, 30kSPS Very Low Noise Delta-Sigma ADC with Multiplexer     The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device.  4 channel version of ADS1258  
ADS1255   24 Bit, 30kSPS Very Low Noise Delta-Sigma ADC     The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device.  Single channel version of ADS1258  
OPA277   High Precision Operational Amplifiers   PRECISION AMPLIFIERS - LOW OFFSET VOLTAGE   OPERATIONAL AMPLIFIER    
OPA333   1.8V, 17uA, 2uV, microPOWER CMOS Zero-Drift Series Operational Amplifier   PRECISION AMPLIFIERS - LOW OFFSET VOLTAGE   OPERATIONAL AMPLIFIER    
REF5025   Low Noise, Very Low Drift, Precision Voltage Reference   REFERENCES - SERIES VOLTAGE REFERENCES   SERIES VOLTAGE REFERENCE    
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Nuts and Bolts of the Delta-Sigma Converter
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