SBAU431 July   2024 ADS1282

 

  1.   1
  2.   Description
  3.   Get Started
  4.   Features
  5.   Applications
  6.   6
  7. 1Evaluation Module Overview
    1. 1.1 Introduction
    2. 1.2 Performance Development Kit Contents
    3. 1.3 Specifications
    4. 1.4 Device Information
  8. 2Hardware
    1. 2.1  EVM Analog Input Options
    2. 2.2  Common-Mode Amplifier
    3. 2.3  Analog Input 1 Circuit
    4. 2.4  Analog Input 2 Amplifier
    5. 2.5  Voltage Reference
    6. 2.6  ADC Connections and Decoupling
    7. 2.7  Power Supplies
    8. 2.8  Low Dropout Regulators (LDO)
    9. 2.9  Flip-Flop/SYNC Circuit
    10. 2.10 Clocking
    11. 2.11 Serial Interface
    12. 2.12 EEPROM
  9. 3Software
    1. 3.1 Software Description
    2. 3.2 ADS1282 EVM Software Installation
  10. 4Implementation Results
    1. 4.1 EVM Operation
      1. 4.1.1 Evaluation Setup
      2. 4.1.2 EVM Register Settings
        1. 4.1.2.1 Channel Configuration
        2. 4.1.2.2 PGA Gain Selection
        3. 4.1.2.3 Data Rate Configuration
      3. 4.1.3 Time Domain Display
      4. 4.1.4 Spectral Analysis Display
      5. 4.1.5 Histogram Analysis Display
  11. 5Hardware Design Files
    1. 5.1 Schematics
    2. 5.2 PCB Layouts
    3. 5.3 Bill of Materials (BOM)
  12. 6Additional Information
    1. 6.1 Trademarks
  13. 7Related Documentation
    1. 7.1 Supplemental Content

2.1 EVM Analog Input Options

Connect differential analog input signals to pins +AINx and -AINx (x denoting channels 1 and 2) of headers J3 and J5. Enable single-ended inputs for channel 1 by connecting -AIN1 to system ground (short pins 2-3 of header J3) and apply the signal to pin 1 of header J3. For channel 2, connect -AIN2 to system ground (short pins 1-2 of header J5) and apply the signal to pin 3 of header J5.

Each of the differential input pairs accepts up to a 5VPP differential signal, with an offset (common-mode) voltage from 0V up to +2.5V. The REF6050 provides the EVM default 5V reference voltage. Refer to Figure 3-1 for details.

ADS1282V2EVM-PDK Maximum Input Signal Range (VREF = 5V)Figure 2-1 Maximum Input Signal Range (VREF = 5V)