SBAU126E may   2007  – june 2023 ADS1158 , ADS1258

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1ADS1258EVM Overview
    1. 1.1 ADS1258EVM Kit
    2. 1.2 ADS1258EVM
  5. 2Getting Started With the ADS1258EVM
  6. 3Analog Interface
    1. 3.1 Analog Input Options
    2. 3.2 ADC Connections and Decoupling
    3. 3.3 Configurable Multiplexer Loop
      1. 3.3.1 Measuring Single-Ended Inputs Using a Pseudo-Differential Configuration
    4. 3.4 Clocking
    5. 3.5 Voltage Reference
  7. 4Digital Interface
    1. 4.1 GPIO
  8. 5Power Supplies
  9. 6Software Installation
  10. 7EVM Operation and GUI
    1. 7.1 Connecting the Hardware
    2. 7.2 EVM GUI Global Settings for ADC Control
    3. 7.3 Time-Domain Display
    4. 7.4 Frequency-Domain Display
    5. 7.5 Histogram Display
  11. 8Bill of Materials, Layout, and Schematics
    1. 8.1 Bill of Materials
    2. 8.2 EVM PCB Layout
    3. 8.3 Schematics
  12. 9Revision History

7.5 Histogram Display

Noise degrades ADC resolution and the histogram tool shown in Figure 7-6 can be used to estimate effective resolution. Effective resolution is a metric describing the ADC resolution loss resulting from noise generated by the various sources connected to the ADC when measuring a dc signal. The cumulative effect of noise coupling to the ADC output from sources such as the input drive circuits, the reference drive circuit, the ADC power supply, and the ADC is reflected in the standard deviation of the ADC output code histogram that is obtained by performing multiple conversions of a dc input applied to a given channel.

GUID-20221026-SS0I-DSR0-B8FJ-QHKQPMKZ7NND-low.png Figure 7-6 ADS1258EVM GUI Histogram Display Page