TI Home > Semiconductors > Data Converters > Analog to Digital Converter >

ADS1226 Status: ACTIVE

24 Bit ADC with Two Differential Input Multiplexer and Internal Oscillator


      
         
Alert me about changes<br/>to this product

See Also

  • ADS1232 - The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device.  2 channel 20 bit bridge type device
  • ADS1222 - The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device.  Functionally similar device but no onboard oscillator
  • ADS1112 - The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device. 

View all related products

 ADS1225 ADS1226
Resolution(Bits)24  24  
Sample Rate (max)100SPS  100SPS  
ArchitectureDelta-Sigma  Delta-Sigma  
Power Consumption(Typ)(mW)1.6  1.6  
DNL(Max)(+/-LSB)1  1  
INL(Max)(+/-LSB)0.0005%  0.0005%  
No Missing Codes(Bits)24  24  
ENOB(Bits)21  21  
No. of Supplies2  2  
Analog Voltage AV/DD(Min)(V)2.7  2.7  
Analog Voltage AV/DD(Max)(V)5.5  5.5  
Logic Voltage DV/DD(Min)(V)2.7  2.7  
Logic Voltage DV/DD(Max)(V)5.5  5.5  
Input Configuration RangeVref  Vref  
Reference ModeExt  Ext  
RatingCatalog  Catalog  
Pin/Package16QFN  16QFN  
# Input Channels1  2  
 SamplesSamples
 InventoryInventory

Customers Who Evaluated This Product Also Evaluated

  • ADS1112: 16-bit 240SPS ADC, 2 Ch. Diff/3 Single-end input, Low power Complete System in MSOP-10
  • ADS1225: 24-bit, 100SPS ADC with Differential Input and Internal Oscillator
  • ADS1115: 16-Bit ADC with Integrated MUX, PGA, Comparator, Oscillator, and Reference

More Related Products

Product Information

Features

  • 100SPS Data Rate (High-Speed Mode)
  • Single-Cycle Settling
  • Easy Conversion Control with START Pin
  • Automatic Shutdown
  • Low Noise: 4µVRMS Noise (High-Resolution Mode)
  • Input Multiplexer with Two Differential Channels (ADS1226)
  • Voltage Reference Supports Ratiometric Measurements
  • Self-Calibrating
  • Simple Read-Only 2-Wire Serial Interface
  • Internal High-Impedance Input Buffer
  • Internal Temperature Sensor
  • Internal Oscillator
  • Low-Power: 1mW While Operating, < 1µA During Shutdown
  • Analog and Digital Supplies: 2.7V to 5.5V
  • APPLICATIONS
    • Hand-Held Instrumentation
    • Portable Medical Equipment
    • Industrial Process Control

Description

The ADS1225 and ADS1226 are 24-bit delta-sigma analog-to-digital (A/D) converters. They offer excellent performance, ease-of-use, and low power in a small 4mm × 4mm QFN package and are well-suited for demanding high-resolution measurements, especially in portable and other space-saving and power-constrained applications.

The ADS1225 and ADS1226 convert on command using a dedicated START pin. Simply pulse this pin to initiate a conversion. Data is read in a single cycle for retrieval over a 2-wire serial interface that easily connects to popular microcontrollers like the MSP430. After the conversion completes, the ADS1225 and ADS1226 automatically shuts down all circuitry.

Internal features include a two-channel multiplexer (ADS1226), selectable input buffer, temperature sensor, and oscillator. The full-scale range is defined by the external voltage reference with support provided for up to a 5V differential input signal. Two operating modes allow for speed (100SPS data rate, 15µVRMS noise) or resolution (4µVRMS noise, 16SPS data rate).

The ADS1225/6 supports 2.7 to 5.5V analog and digital supplies. Power consumption is 1mW while converting with 3V supplies. The ADS1225 and ADS1226 are fully specified over an extended industrial temperature range of -40°C to +105°C.

    

Pricing / Packaging / CAD Design Tools / Samples

PricePackagingCAD Design ToolsSamples
DeviceStatusTemp (oC)Price | QuantityPackage | PinsTop Side MarkingPackage QTY | Package CarrierSymbolsSamples
ADS1226IRGVRACTIVE-40 to 1053.20 | 1kuQFN (RGV) | 16 View 2500 | LARGE T&R Download CAD Format for this SymbolPurchase Samples
ADS1226IRGVRG4ACTIVE-40 to 1053.20 | 1kuQFN (RGV) | 16 View 2500 | LARGE T&R Download CAD Format for this SymbolPurchase Samples
ADS1226IRGVTACTIVE-40 to 1053.50 | 1kuQFN (RGV) | 16 View 250 | SMALL T&R Download CAD Format for this Symbol
ADS1226IRGVTG4ACTIVE-40 to 1053.50 | 1kuQFN (RGV) | 16 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

Reported Distributor Inventory as of 12:11 PM GMT, 06 Nov 2009
RegionCompanyIn StockPurchase
TI Lead Time*: 20 WeeksADS1226IRGVR
WorldwideDigiKey  Available
TI Lead Time*: 20 WeeksADS1226IRGVRG4
WorldwideDigiKey  Available
TI Lead Time*: 4 WeeksADS1226IRGVT
AsiaFarnell Asia 4
WorldwideDigiKey 11
Mouser Electronics 190
TI Lead Time*: 4 WeeksADS1226IRGVTG4
WorldwideDigiKey  Available
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
ADS1226IRGVR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
ADS1226IRGVRG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
ADS1226IRGVT RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
ADS1226IRGVTG4 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 ADS1226 Help

Datasheet

Application Notes

View Application Notes 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

Part # Name Product Family Comments
ADS1232   24-Bit, Ultra Low-Noise Analog-to-Digital Converter   DATA CONVERTERS - ANALOG TO DIGITAL CONVERTER   The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device.  2 channel 20 bit bridge type device  
ADS1222   24-Bit A/D Conv with 2-Channel Diff Input Multiplexer   DATA CONVERTERS - ANALOG TO DIGITAL CONVERTER   The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device.  Functionally similar device but no onboard oscillator  
ADS1112   16-bit 240SPS ADC, 2 Ch. Diff/3 Single-end input, Low power Complete System in MSOP-10   DATA CONVERTERS - ANALOG TO DIGITAL CONVERTER   The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device.   
ADS1225   24-bit, 100SPS ADC with Differential Input and Internal Oscillator   DATA CONVERTERS - ANALOG TO DIGITAL CONVERTER   Single channel version of ADS1226  
OPA365   2.2V, 50MHz, Low-Noise, Single-Supply Rail-to-Rail Operational Amplifier   PRECISION AMPLIFIER - LOW OFFSET VOLTAGE   OPERATIONAL AMPLIFIER    
OPA333   1.8V, 17uA, 2uV, microPOWER CMOS Zero-Drift Series Operational Amplifier   PRECISION AMPLIFIER - LOW OFFSET VOLTAGE   OPERATIONAL AMPLIFIER    
REF5025   Low Noise, Very Low Drift, Precision Voltage Reference   VOLTAGE REFERENCE - SERIES VOLTAGE REFERENCE   SERIES VOLTAGE REFERENCE    
Customers Who Evaluated This Product Also Evaluated...
ADS1112 16-bit 240SPS ADC, 2 Ch. Diff/3 Single-end input, Low power Complete System in MSOP-10 DATA CONVERTERS-ANALOG TO DIGITAL CONVERTER TI customers also evaluated this product.
ADS1225 24-bit, 100SPS ADC with Differential Input and Internal Oscillator DATA CONVERTERS-ANALOG TO DIGITAL CONVERTER TI customers also evaluated this product.
ADS1115 16-Bit ADC with Integrated MUX, PGA, Comparator, Oscillator, and Reference DATA CONVERTERS-ANALOG TO DIGITAL CONVERTER TI customers also evaluated this product.
ADS1222 24-Bit A/D Conv with 2-Channel Diff Input Multiplexer DATA CONVERTERS-ANALOG TO DIGITAL CONVERTER TI customers also evaluated this product.
ADS1100 Self-Calibrating, 16-Bit Analog-to-Digital Converter DATA CONVERTERS-ANALOG TO DIGITAL CONVERTER TI customers also evaluated this product.
ADS1232 24-Bit, Ultra Low-Noise Analog-to-Digital Converter DATA CONVERTERS-ANALOG TO DIGITAL CONVERTER TI customers also evaluated this product.
ADS1230 20 Bit Delta Sigma ADC for Bridge Sensors DATA CONVERTERS-ANALOG TO DIGITAL CONVERTER TI customers also evaluated this product.
ADS1110 16-Bit Delta-Sigma ADC with internal reference, PGA and oscillator. I2C Serial Interface DATA CONVERTERS-ANALOG TO DIGITAL CONVERTER TI customers also evaluated this product.
ADS1234 24-Bit, Ultra Low-Noise Analog-to-Digital Converter DATA CONVERTERS-ANALOG TO DIGITAL CONVERTER TI customers also evaluated this product.

Support and Community

Customer Tags Help

No Tags are Available for this Part Number

Other Support



Click Here