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ADS1231 Status: PREVIEW

Low-Noise 24-Bit Analog-to-Digital Converter


      
         
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Datasheet

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Functional Block Diagram


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 ADS1130 ADS1131 ADS1230 ADS1231ADS1232 ADS1234 
Resolution(Bits)18   20   24  24  
Sample Rate (max)80SPS   80SPS  80SPS  80SPS  80SPS  
ArchitectureDelta-Sigma  Delta-Sigma  Delta-Sigma  Delta-Sigma  Delta-Sigma  Delta-Sigma  
Power Consumption(Typ)(mW)2.9  2.9  2.9  2.9  4.3  4.3  
DNL(Max)(+/-LSB)1  1  1  1  1  1  
INL(Max)(+/-LSB)0.0006%   0.0006%  0.0006%  0.0002%  0.0002%  
No Missing Codes(Bits)18  18  20  24  24  24  
ENOB(Bits)17.5  17.5  19.5  23.5  23.5  23.5  
No. of Supplies2  2  2  2  2  2  
Analog Voltage AV/DD(Min)(V)2.7  2.7  2.7  2.7  2.7  2.7  
Analog Voltage AV/DD(Max)(V)5.3  5.3  2.3  5.3  5.3  5.3  
Logic Voltage DV/DD(Min)(V)2.7  2.7  2.7   2.7  2.7  
Logic Voltage DV/DD(Max)(V)5.3  5.3  5.3   5.3  5.3  
Input Configuration Range0.5Vref/PGA (1,2,64)    0.5Vref/PGA    0.5Vref/PGA (1,2,64,128)  0.5Vref/PGA    0.5Vref/PGA (1,2,64,128)  0.5Vref/PGA (1,2,64,128)  
Reference ModeExt  Ext  Ext  EXT  Ext  Ext  
RatingCatalog  Catalog  Catalog  Catalog  Catalog  Catalog  
Pin/Package16TSSOP  16TSSOP  16TSSOP  16TSSOP  24TSSOP  28TSSOP  
# Input Channels1  1  1  1  2  4  
 SamplesSamplesSamplesSamplesSamplesSamples
 InventoryInventory Not AvailableInventoryInventory Not AvailableInventoryInventory

Customers Who Evaluated This Product Also Evaluated

  • ADS1232: 24-Bit, Ultra Low-Noise Analog-to-Digital Converter
  • ADS1230: 20 Bit Delta Sigma ADC for Bridge Sensors
  • ADS1274: Quad, 128kHz, Simultaneous Sampling 24-Bit Delta Sigma ADC
  • INA333: Low Power, Precision Instrumentation Amplifier

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Product Information

Features

  • Complete Front-End for Bridge Sensor
  • Internal Amplifier, Gain of 128
  • Internal/External Oscillator
  • Low-Side Power Switch for Bridge Sensor
  • RMS Noise:
    40nV at 10SPS
    88nV at 80SPS
  • Selectable 10SPS or 80SPS Data Rates
  • Simultaneous 50Hz and 60Hz Rejection at 10SPS
  • External Voltage Reference up to 5V for
    Ratiometric Measurements
  • Simple, Pin-Driven Control
  • Two-Wire Serial Digital Interface
  • Tiny TSSOP-16 Package
  • Supply Range: 2.7V to 5.3V
  • –40°C to +85°C Temperature Range
  • APPLICATIONS
    • Weigh Scales
    • Strain Gauges
    • Load Cells
    • Industrial Process Control

All other trademarks are the property of their respective owners.

Description

The ADS1231 is a precision, 24-bit analog-to-digital converter (ADC). With an onboard, low-noise amplifier, onboard oscillator, precision 24-bit delta-sigma () ADC, and bridge power switch, the ADS1231 provides a complete front-end solution for bridge sensor applications including weigh scales, strain gauges, and load cells.

The low-noise amplifier has a gain of 128, supporting a full-scale differential input of ±19.5mV. The ADC has 24-bit effective resolution and is comprised of a third-order modulator and fourth-order digital filter. Two data rates are supported: 10SPS (with both 50Hz and 60Hz rejection) and 80SPS. The ADS1231 can be clocked by the internal oscillator or an external clock source. The ADS1231 can be put in a low-power standby mode or shut off completely in power-down mode.

View All Description in Datasheet

    

Pricing / Packaging / CAD Design Tools / Samples

PackagingSamples
DeviceStatusPackage | PinsTop Side MarkingPackage QTY | Package CarrierSamples
ADS1231CPWPREVIEWTSSOP (PW) | 16 View 90Not Available
ADS1231CPWRPREVIEWTSSOP (PW) | 16 View 2000Not Available
ADS1231IPWPREVIEWTSSOP (PW) | 16 View 90Not Available
ADS1231IPWRPREVIEWTSSOP (PW) | 16 View 2000Not Available

Quality & Lead (Pb)-Free Data

 Product ContentDPPM / MTBF / FIT Rate
DeviceEco Plan* Lead / Ball FinishMSL Rating / Peak ReflowDetailsDetails
ADS1231IPW      View
ADS1231IPWR      View

* 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 ADS1231 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 the SAME FUNCTIONALITY as the compared device, but is not pin-for-pin equivalent and may not be parametrically equivalent.  Dual Channel Version of ADS1231, excludes bridge switch  
ADS1234   24-Bit, Ultra Low-Noise Analog-to-Digital Converter   DATA CONVERTERS - ANALOG TO DIGITAL CONVERTER   The device has the SAME FUNCTIONALITY as the compared device, but is not pin-for-pin equivalent and may not be parametrically equivalent.  Quad Channel Version of ADS1231, excludes bridge switch  
ADS1230   20 Bit Delta Sigma ADC for Bridge Sensors   DATA CONVERTERS - ANALOG TO DIGITAL CONVERTER   The device has the SAME FUNCTIONALITY as the compared device, but is not pin-for-pin equivalent and may not be parametrically equivalent.  20-Bit Version of ADS1231 plus additional gain options, excludes bridge switch  
ADS1130   18-Bit Analog-to-Digital Converter for Bridge Sensors   DATA CONVERTERS - ANALOG TO DIGITAL CONVERTER   The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device.  18-Bit Version of ADS1231, Gain = 64, excludes bridge switch  
OPA333   1.8V, 17uA, 2uV, microPOWER CMOS Zero-Drift Series Operational Amplifier   PRECISION AMPLIFIER - LOW OFFSET VOLTAGE   1.8V, 17uA, 2uV, microPOWER CMOS Zero-Drift Series Operational Amplifier      
OPA369   1.8V, 700nA, Zero-Crossover Rail-To-Rail I/O Operational Amplifier   PRECISION AMPLIFIER - LOW POWER   1.8V, 700nA, Zero-Crossover Rail-To-Rail I/O Operational Amplifier      
INA333   Low Power, Precision Instrumentation Amplifier   INSTRUMENTATION AMPLIFIER - SINGLE SUPPLY   1.8V, 75uA, 25uV, Zero-Drift Series Instrumentation Amplifier    
TMP112   TMP112 High-Precision, Low-Power, Digital Temperature Sensor   TEMPERATURE SENSORS AND CONTROL ICs - TEMPERATURE SENSOR   0.5 C accuracy, low power, digital temperature sensor in SOT563    
Customers Who Evaluated This Product Also Evaluated...
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.
ADS1274 Quad, 128kHz, Simultaneous Sampling 24-Bit Delta Sigma ADC 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.
ADS1130 18-Bit Analog-to-Digital Converter for Bridge Sensors DATA CONVERTERS-ANALOG TO DIGITAL CONVERTER TI customers also evaluated this product.
ADS1131 18-Bit Analog-to-Digital Converter with Bridge Switch DATA CONVERTERS-ANALOG TO DIGITAL CONVERTER TI customers also evaluated this product.
INA333 Low Power, Precision Instrumentation Amplifier INSTRUMENTATION AMPLIFIER-SINGLE SUPPLY TI customers also evaluated this product.

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