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ADS1242 Status: ACTIVE

24-Bit ADC, 4 Ch, PGA 1:128, 50/60 Hz Notch, 0.6 mW Power Consumption

      
         
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See Also

  • ADS1240 - The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device.  Has a different package than ADS1242
  • ADS1243 - The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device.  Has 8 serial and 4 Diff channels
  • ADS1232 - The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device. 

View all related products

Datasheet

Download - PDF Icon
  • 24-Bit Analog-To-Digital Converter (Rev. G) (ads1242.pdf, 597 KB)
    23 Feb 2007 Download

 ADS1216 ADS1217 ADS1218 ADS1240 ADS1241 ADS1242ADS1243 ADS1248 ADS1256 
Resolution(Bits)24  24  24  24  24  24  24  24  24  
Sample Rate (max)780SPS  780SPS  780SPS  15SPS  15SPS  15SPS  15SPS  2KSPS  30kSPS  
ArchitectureDelta-Sigma  Delta-Sigma  Delta-Sigma  Delta-Sigma  Delta-Sigma  Delta-Sigma  Delta-Sigma   Delta-Sigma  
Power Consumption(Typ)(mW)0.6  0.8  0.8  0.6  0.6  0.6  0.6  2.56  36  
DNL(Max)(+/-LSB)1  1  1  1  1  1  1   2  
INL(Max)(+/-LSB)0.0015%  0.0015%  0.0015%  0.0015%  0.0015%  0.0015%  0.0015%   0.0003%  
No Missing Codes(Bits)24  24  24  24  24  24  24  24  24  
ENOB(Bits)        23  
No. of Supplies2  2  2  2  2  1  1  3  2  
Analog Voltage AV/DD(Min)(V)2.7  2.7  2.7  2.7  2.7  2.7  2.7  2.5  4.75  
Analog Voltage AV/DD(Max)(V)5.25  5.25  5.25  5.25  5.25  5.25  5.25  5.8  5.25  
Logic Voltage DV/DD(Min)(V)2.7  2.7  2.7  2.7  2.7  2.7  2.7  2.5  1.8  
Logic Voltage DV/DD(Max)(V)5.25  5.25  5.25  5.25  5.25  5.25  5.25  5.8  3.6  
Input Configuration RangeVref/PGA (1-128)  Vref/PGA (1-128)  Vref/PGA (1-128)  Vref/PGA (1-128)  Vref/PGA (1-128)  Vref/PGA (1-128)  Vref/PGA (1-128)  +/- Vref / PGA  2Vref/PGA(1-64  
Reference ModeInt  Int  Int  Ext  Ext  Ext  Ext  Int/Ext  Ext  
RatingCatalog  Catalog  Catalog  Catalog  Catalog  Catalog  Catalog  Catalog  Catalog  
Pin/Package48TQFP  48TQFP  48TQFP  24SSOP  28SSOP  16TSSOP  20TSSOP  28TSSOP  28SSOP  
# Input Channels8  8  8  4  8  4  8  7  8  
 SamplesSamplesSamplesSamplesSamplesSamplesSamplesSamplesSamples
 InventoryInventoryInventoryInventoryInventoryInventoryInventoryInventoryInventory

Customers Who Evaluated This Product Also Evaluated

  • ADS1240: 24-Bit Analog-to-Digital Converter
  • ADS1232: 24-Bit, Ultra Low-Noise Analog-to-Digital Converter
  • ADS1234: 24-Bit, Ultra Low-Noise Analog-to-Digital Converter
  • TL431A: Adjustable Precision Shunt Regulator
  • TVP5146: NTSC/PAL/SECAM 4x10-Bit Digital Video Decoder With Macrovision Detection, YPbPR/RBG Inputs
  • OPA445: High Voltage FET-Input Operational Amplifier

More Related Products

Product Information

Features

  • 24 BITS NO MISSING CODES
  • SIMULTANEOUS 50Hz AND 60Hz REJECTION (-90dB MINIMUM)
  • 0.0015% INL
  • 21 BITS EFFECTIVE RESOLUTION (PGA = 1), 19 BITS (PGA = 128)
  • PGA GAINS FROM 1 TO 128
  • SINGLE-CYCLE SETTLING
  • PROGRAMMABLE DATA OUTPUT RATES
  • EXTERNAL DIFFERENTIAL REFERENCE OF 0.1V TO 5V
  • ON-CHIP CALIBRATION
  • SPI™ COMPATIBLE
  • 2.7V TO 5.25V SUPPLY RANGE
  • 600µW POWER CONSUMPTION
  • UP TO EIGHT INPUT CHANNELS
  • UP TO EIGHT DATA I/O
  • APPLICATIONS
    • INDUSTRIAL PROCESS CONTROL
    • LIQUID/GAS CHROMATOGRAPHY
    • BLOOD ANALYSIS
    • SMART TRANSMITTERS
    • PORTABLE INSTRUMENTATION
    • WEIGHT SCALES

All trademarks are the property of their respective owners.

Description

The ADS1242 and ADS1243 are precision, wide dynamic range, delta-sigma, analog-to-digital (A/D) converters with 24-bit resolution operating from 2.7V to 5.25V supplies. These delta-sigma, A/D converters provide up to 24 bits of no missing code performance and effective resolution of 21 bits.

The input channels are multiplexed. Internal buffering can be selected to provide a very high input impedance for direct connection to transducers or low-level voltage signals. Burnout current sources are provided that allow for the detection of an open or shorted sensor. An 8-bit digital-to-analog converter (DAC) provides an offset correction with a range of 50% of the FSR (Full-Scale Range).

The Programmable Gain Amplifier (PGA) provides selectable gains of 1 to 128 with an effective resolution of 19 bits at a gain of 128. The A/D conversion is accomplished with a second-order delta-sigma modulator and programmable FIR filter that provides a simultaneous 50Hz and 60Hz notch. The reference input is differential and can be used for ratiometric conversion.

The serial interface is SPI compatible. Up to eight bits of data I/O are also provided that can be used for input or output. The ADS1242 and ADS1243 are designed for high-resolution measurement applications in smart transmitters, industrial process control, weight scales, chromatography, and portable instrumentation.

    

Pricing / Packaging / CAD Design Tools / Samples

PricePackagingCAD Design ToolsSamples
DeviceStatusTemp (oC)Price | QuantityPackage | PinsTop Side MarkingPackage QTY | Package CarrierSymbolsFootprintsSamples
ADS1242IPWRACTIVE-40 to 854.50 | 100uTSSOP (PW) | 16 View 2500 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
ADS1242IPWRG4ACTIVE-40 to 854.50 | 100uTSSOP (PW) | 16 View 2500 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
ADS1242IPWTACTIVE-40 to 854.95 | 100uTSSOP (PW) | 16 View 250 | SMALL T&R Download CAD Format for this Symbol Download CAD Format for this Footprint
ADS1242IPWTG4ACTIVE-40 to 854.95 | 100uTSSOP (PW) | 16 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

  TI Inventory Status Reported Distributor Inventory
ADS1242IPWRAs of 10:18 AM GMT, 19 Nov 2008As of 10:18 AM GMT, 19 Nov 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 0* >10k | 28 Jan 12 Weeks None Reported
View Distributors		   
ADS1242IPWRG4As of 10:18 AM GMT, 19 Nov 2008As of 10:18 AM GMT, 19 Nov 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 0* >10k | 28 Jan 12 Weeks None Reported
View Distributors		   
ADS1242IPWTAs of 10:18 AM GMT, 19 Nov 2008As of 10:18 AM GMT, 19 Nov 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 0* >10k | 28 Jan 12 Weeks AmericasDigiKey >1k
  Mouser Electronics 250
  Rochester Electronics 500
  AsiaWPI 169
  EuropeFarnell 317
ADS1242IPWTG4As of 10:18 AM GMT, 19 Nov 2008As of 10:18 AM GMT, 19 Nov 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 0* >10k | 28 Jan 12 Weeks None 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
ADS1242IPWR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
ADS1242IPWRG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
ADS1242IPWT RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
ADS1242IPWTG4 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 Analog-To-Digital Converter (Rev. G) (ads1242.pdf, 597 KB)
    23 Feb 2007 Download

Application Notes

  • A Glossary of Analog-to-Digital Specifications and Performance Characteristics (Rev. A) (sbaa147a.htm, 8 KB)
    12 Jan 2008 Abstract
  • Measuring Single-Ended 0V-5V Signals with Differential Delta-Sigma ADCs (sbaa133.htm, 8 KB)
    25 Aug 2005 Abstract
  • Shelf-Life Evaluation of Lead-Free Component Finishes (szza046.htm, 8 KB)
    24 May 2004 Abstract
  • Inputs Currents for High-Resolution ADCs (sbaa090.htm, 8 KB)
    06 Mar 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
  • 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

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

 Alternative Products - Are similar to ADS1242
Part #NameComments
ADS1240 24-Bit Analog-to-Digital Converter The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device. Has a different package than ADS1242 
ADS1243 24-Bit ADC, 8 Ch, PGA 1:128, 50/60 Hz Notch, 0.6 mW Power Consumption The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device. Has 8 serial and 4 Diff channels 
ADS1232 24-Bit, Ultra Low-Noise Analog-to-Digital Converter The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device.  
ADS1234 24-Bit, Ultra Low-Noise Analog-to-Digital Converter The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device.  
Customers Who Evaluated This Product Also Evaluated...
ADS124024-Bit Analog-to-Digital ConverterTI customers also evaluated this product.
ADS123224-Bit, Ultra Low-Noise Analog-to-Digital ConverterTI customers also evaluated this product.
ADS123424-Bit, Ultra Low-Noise Analog-to-Digital ConverterTI customers also evaluated this product.
ADS123020 Bit Delta Sigma ADC for Bridge SensorsTI customers also evaluated this product.
ADS125624 Bit, 30kSPS Very Low Noise Delta-Sigma ADC with MultiplexerTI customers also evaluated this product.
ADS850516-Bit 250kHz CMOS Analog-to-Digital Converter w/Parallel Interface 2.5V Internal ReferenceTI customers also evaluated this product.
ADS125524 Bit, 30kSPS Very Low Noise Delta-Sigma ADCTI customers also evaluated this product.
ADS124324-Bit ADC, 8 Ch, PGA 1:128, 50/60 Hz Notch, 0.6 mW Power ConsumptionTI customers also evaluated this product.
ADS1247Low Noise, Precision 24-Bit Analog-to-Digital ConverterTI customers also evaluated this product.
ADS1274Quad, 128kHz, Simultaneous Sampling 24-Bit Delta Sigma ADCTI customers also evaluated this product.
 Complementary Products - Can be used with ADS1242
Part #NameProduct FamilyComments
OPA333 1.8V, 17uA, 2uV, microPOWER CMOS Zero-Drift Series Operational Amplifier PRECISION AMPLIFIERS- LOW OFFSET VOLTAGE OPERATIONAL AMPLIFIER  
OPA369 1.8V, 1uA max, Zero-Crossover Rail-to-Rail I/O Operational Amplifier PRECISION AMPLIFIERS- LOW POWER OPERATIONAL AMPLIFIER  
REF5025 Low Noise, Very Low Drift, Precision Voltage Reference REFERENCES- SERIES VOLTAGE REFERENCES SERIES VOLTAGE REFERENCE  
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OPA445High Voltage FET-Input Operational AmplifierPRECISION AMPLIFIERS-HIGH VOLTAGETI customers also evaluated this product.
THS8134B8-Bit, 80MSPS Triple DAC with Tri-Level Sync Generation (HDTV Compliant)VIDEO AND IMAGING-VIDEO DACSTI customers also evaluated this product.
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REF02+5V Precision Voltage ReferenceREFERENCES-SERIES VOLTAGE REFERENCESTI customers also evaluated this product.
TPA2010D12.5-W Mono, Fully Differential, Filter-Free Class-D Audio Amplifier in WCSP (TPA2010)DIGITAL AMPLIFIER SOLUTIONS-ANALOG-INPUT CLASS-D SPEAKER AMPLIFIERSTI customers also evaluated this product.
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