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ADS1222 Status: ACTIVE

24-Bit A/D Conv with 2-Channel Diff Input Multiplexer


      
         
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See Also

  • ADS1232 - Functionally equivalent. With bridge type input configuration and onboard oscillator
  • ADS1226 - Functionally similar to ADS1222. Has an onboard oscillator.
  • ADS1112 - 16 bit functional equivalent

View all related products

 ADS1222ADS1224 
Resolution(Bits)24  24  
Sample Rate (max)240SPS  240SPS  
ArchitectureDelta-Sigma  Delta-Sigma  
Power Consumption(Typ)(mW)1.35  1.35  
DNL(Max)(+/-LSB)1  1  
INL(Max)(+/-LSB)0.0003%  0.0003%  
No Missing Codes(Bits)24  24  
ENOB(Bits)20  20  
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 Range2Vref  2Vref  
Reference ModeExt  Ext  
RatingCatalog  Catalog  
Pin/Package14TSSOP  20TSSOP  
# Input Channels2  4  
 SamplesSamples
 InventoryInventory

Customers Who Evaluated This Product Also Evaluated

  • ADS1226: 24 Bit ADC with Two Differential Input Multiplexer and Internal Oscillator
  • 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
  • TPS5430: 5.5V to 36V, 3A, 500kHz Step Down SWIFT™ Converter
  • TFP410: PanelBus DVI Transmitter 165MHz
  • SN74LVC1G32: Single 2-Input Positive-OR Gate

More Related Products

Product Information

Features

  • 240SPS Data Rate with 4MHz Clock
  • 20-Bit Effective Resolution
  • Input Multiplexer with Two Differential Channels
  • Pin-Selectable, High-Impedance Input Buffer
  • ±5V Differential Input Range
  • 0.0003% INL (typ), 0.0015% INL (max)
  • Self-Calibrating
  • Simple 2-Wire Serial Interface
  • On-Chip Temperature Sensor
  • Single Conversions with Standby Mode
  • Low Current Consumption: 300µA
  • Analog Supply: 2.7V to 5.5V
  • APPLICATIONS
    • Hand-Held Instrumentation
    • Portable Medical Equipment
    • Industrial Process Control
    • Weigh Scales

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Description

The ADS1222 is a 2-channel, 24-bit, delta-sigma analog-to-digital (A/D) converter. It offers excellent performance and low power in a TSSOP-14 package. The ADS1222 is well-suited for demanding, high-resolution measurements, especially in portable systems and other space-saving and power-constrained applications.

A delta-sigma (ΔΣ) modulator and digital filter form the basis of the A/D converter. The analog modulator has a ±5V differential input range. An input multiplexer (mux) is used to select between two separate differential input channels. A buffer can be selected to increase the input impedance of the measurement.

A simple, 2-wire serial interface provides all the necessary control. Data retrieval, self-calibration, and Standby mode are handled with a few simple waveforms.

View All Description in Datasheet

    

Pricing / Packaging / CAD Design Tools / Samples

PricePackagingCAD Design ToolsSamples
DeviceStatusTemp (oC)Price | QuantityPackage | PinsTop Side MarkingPackage QTY | Package CarrierSymbolsFootprintsSamples
ADS1222IPWRACTIVE-40 to 853.20 | 1kuTSSOP (PW) | 14 View 2000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
ADS1222IPWRG4ACTIVE-40 to 853.20 | 1kuTSSOP (PW) | 14 View 2000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
ADS1222IPWTACTIVE-40 to 853.50 | 1kuTSSOP (PW) | 14 View 250 | SMALL T&R Download CAD Format for this Symbol Download CAD Format for this FootprintContact TI Distributor or Sales Office
ADS1222IPWTG4ACTIVE-40 to 853.50 | 1kuTSSOP (PW) | 14 View 250 | SMALL T&R Download CAD Format for this Symbol Download CAD Format for this FootprintContact TI Distributor or Sales Office

* 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 12:18 PM GMT, 22 Nov 2009
RegionCompanyIn StockPurchase
TI Lead Time*: 20 WeeksADS1222IPWR
WorldwideDigiKey  Available
TI Lead Time*: 20 WeeksADS1222IPWRG4
WorldwideDigiKey  Available
TI Lead Time*: 20 WeeksADS1222IPWT
AmericasRochester Electronics >1k
AsiaWPI 221
EuropeCompel 47
WorldwideDigiKey 331
TI Lead Time*: 20 WeeksADS1222IPWTG4
WorldwideDigiKey  Available
Mouser Electronics 83
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
ADS1222IPWR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
ADS1222IPWRG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
ADS1222IPWT RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
ADS1222IPWTG4 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 ADS1222 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   Functionally equivalent. With bridge type input configuration and onboard oscillator  
ADS1226   24 Bit ADC with Two Differential Input Multiplexer and Internal Oscillator   DATA CONVERTERS - ANALOG TO DIGITAL CONVERTER   Functionally similar to ADS1222. Has an 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   16 bit functional equivalent  
ADS1225   24-bit, 100SPS ADC with Differential Input and Internal Oscillator   DATA CONVERTERS - ANALOG TO DIGITAL CONVERTER   Single channel, with onboard oscillator version  
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    
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