SBASB82 May   2025 ADS9127 , ADS9128 , ADS9129

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Pin Configuration and Functions
  6. 5 Specifications
    1. 5.1  Absolute Maximum Ratings
    2. 5.2  ESD Ratings
    3. 5.3  Recommended Operating Conditions
    4. 5.4  Thermal Information
    5. 5.5  Electrical Characteristics
    6. 5.6  Timing Requirements
    7. 5.7  Switching Characteristics
    8. 5.8  Timing Diagrams
    9. 5.9  Typical Characteristics: All Devices
    10. 5.10 Typical Characteristics: ADS9129
    11. 5.11 Typical Characteristics: ADS9128
    12. 5.12 Typical Characteristics: ADS9127
  7. 6 Detailed Description
    1. 6.1 Overview
    2. 6.2 Functional Block Diagram
    3. 6.3 Feature Description
      1. 6.3.1 Analog Inputs
      2. 6.3.2 Analog Input Bandwidth
      3. 6.3.3 ADC Transfer Function
      4. 6.3.4 Reference Voltage
      5. 6.3.5 Temperature Sensor
      6. 6.3.6 Data Averaging
      7. 6.3.7 Digital Down Converter
      8. 6.3.8 Data Interface
        1. 6.3.8.1 Data Frame Width
        2. 6.3.8.2 Synchronizing Multiple ADCs
        3. 6.3.8.3 Test Patterns for Data Interface
          1. 6.3.8.3.1 Fixed Pattern
          2. 6.3.8.3.2 Alternating Test Pattern
          3. 6.3.8.3.3 Digital Ramp
      9. 6.3.9 ADC Sampling Clock Input
    4. 6.4 Device Functional Modes
      1. 6.4.1 Reset
      2. 6.4.2 Power-Down Options
      3. 6.4.3 Normal Operation
      4. 6.4.4 Initialization Sequence
    5. 6.5 Programming
      1. 6.5.1 Register Write
      2. 6.5.2 Register Read
      3. 6.5.3 Multiple Devices: Daisy-Chain Topology for SPI Configuration
        1. 6.5.3.1 Register Write With Daisy-Chain
        2. 6.5.3.2 Register Read With Daisy-Chain
  8. 7 Register Map
    1. 7.1 Register Bank 0
    2. 7.2 Register Bank 1
    3. 7.3 Register Bank 2
  9. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Applications
      1. 8.2.1 Data Acquisition (DAQ) Circuit for a ≤20kHz Input Signal Bandwidth
        1. 8.2.1.1 Design Requirements
        2. 8.2.1.2 Detailed Design Procedure
        3. 8.2.1.3 Application Curves
      2. 8.2.2 Data Acquisition (DAQ) Circuit for a ≤100kHz Input Signal Bandwidth
        1. 8.2.2.1 Design Requirements
        2. 8.2.2.2 Application Curves
      3. 8.2.3 Data Acquisition (DAQ) Circuit for a ≤1MHz Input Signal Bandwidth
        1. 8.2.3.1 Design Requirements
        2. 8.2.3.2 Application Curves
    3. 8.3 Power Supply Recommendations
    4. 8.4 Layout
      1. 8.4.1 Layout Guidelines
      2. 8.4.2 Layout Example
  10. 9 Device and Documentation Support
    1. 9.1 Documentation Support
      1. 9.1.1 Related Documentation
    2. 9.2 Receiving Notification of Documentation Updates
    3. 9.3 Support Resources
    4. 9.4 Trademarks
    5. 9.5 Electrostatic Discharge Caution
    6. 9.6 Glossary
  11. 10Revision History
  12. 11Mechanical, Packaging, and Orderable Information
    1. 11.1 Mechanical Data

5.9 Typical Characteristics: All Devices

at TA = 25°C, AVDD_5V = 5V, VDD_1V8 = 1.8V, external VREF = 4.096V, and maximum throughput (unless otherwise noted)

ADS9127 ADS9128 ADS9129 Typical Analog Input Bandwidth
 
Figure 5-7 Typical Analog Input Bandwidth
ADS9127 ADS9128 ADS9129 Offset Error vs Temperature
 
Figure 5-9 Offset Error vs Temperature
ADS9127 ADS9128 ADS9129 DNL vs Temperature
 
Figure 5-11 DNL vs Temperature
ADS9127 ADS9128 ADS9129 REFIO Voltage vs Temperature
 
Figure 5-13 REFIO Voltage vs Temperature
ADS9127 ADS9128 ADS9129 AVDD_5V Current vs Temperature
 
Figure 5-15 AVDD_5V Current vs Temperature
ADS9127 ADS9128 ADS9129 Gain Error vs Temperature
 
Figure 5-8 Gain Error vs Temperature
ADS9127 ADS9128 ADS9129 INL vs Temperature
 
Figure 5-10 INL vs Temperature
ADS9127 ADS9128 ADS9129 SNR, SINAD, and THD vs Temperature
 
Figure 5-12 SNR, SINAD, and THD vs Temperature
ADS9127 ADS9128 ADS9129 VCMOUT Voltage vs Temperature
 
Figure 5-14 VCMOUT Voltage vs Temperature
ADS9127 ADS9128 ADS9129 VDD_1V8 Current vs Temperature
 
Figure 5-16 VDD_1V8 Current vs Temperature