SBAS350G June   2005  – January 2021 ADS1232 , ADS1234

PRODUCTION DATA  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
  6. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 ESD Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information
    5. 6.5 Electrical Characteristics
    6. 6.6 Typical Characteristics
  7. 7 Parameter Measurement Information
    1. 7.1 Noise Performance
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1  Analog Inputs (AINPX, AINNX)
      2. 8.3.2  Temperature Sensor (ADS1232 Only)
      3. 8.3.3  Low-Noise PGA
        1. 8.3.3.1 PGA Bypass Capacitor
      4. 8.3.4  Voltage Reference Inputs (REFP, REFN)
      5. 8.3.5  Clock Sources
      6. 8.3.6  Digital Filter Frequency Response
      7. 8.3.7  Settling Time
      8. 8.3.8  Data Rate
      9. 8.3.9  Data Format
      10. 8.3.10 Data Ready and Data Output (DRDY/DOUT)
      11. 8.3.11 Serial Clock Input (SCLK)
      12. 8.3.12 Data Retrieval
    4. 8.4 Device Functional Modes
      1. 8.4.1 Offset Calibration Mode
      2. 8.4.2 Standby Mode
      3. 8.4.3 Standby Mode With Offset-Calibration
      4. 8.4.4 Power-Down Mode
      5. 8.4.5 Power-Up Sequence
      6. 8.4.6 Summary of Serial Interface Waveforms
  9. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
      3. 9.2.3 Application Curves
  10. 10Power Supply Recommendations
    1. 10.1 Power-Supply Decoupling
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 Receiving Notification of Documentation Updates
    2. 12.2 Support Resources
    3. 12.3 Trademarks
    4. 12.4 Electrostatic Discharge Caution
    5. 12.5 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

4 Revision History

Changes from Revision F (February 2008) to Revision G (January 2021)

  • Updated the numbering format for tables, figures, and cross-references throughout the document Go
  • Added Device Information, ESD Ratings, Recommended Operating Conditions, and Thermal Information tables, and Detailed Description, Application and Implementation, Power Supply Recommendations, Layout, Device and Documentation Support, and Mechanical, Packaging, and Orderable Information sectionsGo
  • Deleted Ordering Information section; all ordering information available in package option addendum located at end of data sheetGo
  • Added analog input voltage specification to Absolute Maximum Ratings Go
  • Added digital input voltage specification to Absolute Maximum Ratings Go
  • Deleted momentary input current specification from Absolute Maximum Ratings Go
  • Added input current note to Absolute Maximum Ratings Go
  • Added common-mode voltage condition to Common-Mode Rejection specification in Electrical Characteristics tableGo
  • Deleted power-supply rejection (gain = 1) MIN specification from Electrical Characteristics table Go
  • Changed power-supply rejection (gain = 1) TYP specification in Electrical Characteristics table Go
  • Changed text in Analog Inputs (AINPX, AINNX) sectionGo
  • Added ADS1232 Input Channel Selection With A0 and TEMP tableGo
  • Deleted link to Using the MSC121x as a High-Precision Intelligent Temperature Sensor Go
  • Changed Go
  • Changed 10 SPS –3-dB frequency from 3.32 Hz to 2.4 Hz, and 80 SPS –3-dB frequency from 11.64 Hz to 19 Hz.Go
  • Changed Power-Up Sequence sectionGo
  • Deleted Thermocouple application from Application Information Go
  • Deleted RTDs and Thermistor application from Application Information Go
  • Added weigh scale application to Application Information Go

Changes from Revision E (October 2007) to Revision F (February 2008)

  • Changed ΔV condition in Common-Mode Rejection specification in Electrical Characteristics tableGo
  • Changed AVDD to deltaV in Power-Supply Rejection section in Electrical Characteristics tableGo
  • Changed AVDD to deltaV in Power-Supply Rejection section in Electrical Characteristics tableGo

Changes from Revision D (September 2007) to Revision E (October 2007)

  • Corrected unit values in Electrical Characteristics tableGo

Changes from Revision C (June 2006) to Revision D (September 2007)

  • Deleted Logic Level VIH row for CLKIN/XTAL test condition in Electrical Characteristics tableGo
  • Added offset drift and gain drift histogram plots (Figure 6-9 to Figure 6-16) to Typical Characteristics Go
  • Changed difference voltage output for PGA = 2 from 323.4mV to 223.4mV in Temperature Sensor sectionGo
  • Added text to Voltage Reference Inputs section regarding reference and drift noiseGo
  • Changed ZEFF equationGo
  • Changed Simplified Reference Input Circuitry figure Go
  • Changed Figure 8-4 Go
  • Changed text in Settling Time sectionGo
  • Changed Figure 8-7 Go
  • Changed Figure 8-8 Go
  • Deleted 2nd sentence of Serial Clock Input sectionGo
  • Added Power-Up Sequence section, with new text and two new figuresGo
  • Changed Weigh-Scale Application figure Go

Changes from Revision B (September 2005) to Revision C (June 2006)

  • Deleted last row from Absolute Maximum Ratings tableGo
  • Changed Analog Inputs section of Electrical Characteristics tableGo
  • Changed the typical value in last row of Voltage Reference Input section of Electrical Characteristics tableGo
  • Added note 1 to Table 7-1, Table 7-2, Table 7-3, and Table 7-4.Go
  • Changed fourth sentence in Temperature Sensor section.Go
  • Added fifth and sixth sentences to Temperature Sensor sectionGo
  • Added fourth and fifth sentences to Low-Noise PGA sectionGo
  • Changed Figure 8-2.Go
  • Changed t11 to t10 in third paragraph of Standby Mode sectionGo
  • Changed min and max variables of t10 row in table below Figure 8-12.Go
  • Changed Wake-Up Timing From Power-Down Mode figureGo
  • Added last row and second footnote to table below Wake-Up Timing From Power-Down Mode figureGo