SBASA81B January   2023  – October 2024 ADS9815 , ADS9817

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
  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
        1. 6.3.1.1 Input Clamp Protection Circuit
        2. 6.3.1.2 Programmable Gain Amplifier (PGA)
        3. 6.3.1.3 Wide-Common-Mode Voltage Rejection Circuit
        4. 6.3.1.4 Gain Error Calibration
      2. 6.3.2 ADC Transfer Function
      3. 6.3.3 ADC Sampling Clock Input
      4. 6.3.4 Reference
        1. 6.3.4.1 Internal Reference Voltage
        2. 6.3.4.2 External Reference Voltage
      5. 6.3.5 Sample Synchronization
      6. 6.3.6 Data Interface
        1. 6.3.6.1 Data Clock Output
        2. 6.3.6.2 ADC Output Data Randomizer
        3. 6.3.6.3 Test Patterns for Data Interface
          1. 6.3.6.3.1 Fixed Pattern
          2. 6.3.6.3.2 Digital Ramp
          3. 6.3.6.3.3 Alternating Test Pattern
    4. 6.4 Device Functional Modes
      1. 6.4.1 Power-Down
      2. 6.4.2 Reset
      3. 6.4.3 Initialization Sequence
      4. 6.4.4 Normal Operation
    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 Application
      1. 8.2.1 Parametric Measurement Unit (PMU)
      2. 8.2.2 Design Requirements
      3. 8.2.3 Detailed Design Procedure
      4. 8.2.4 Application Curve
    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 Receiving Notification of Documentation Updates
    2. 9.2 Support Resources
    3. 9.3 Trademarks
    4. 9.4 Electrostatic Discharge Caution
    5. 9.5 Glossary
  11. 10Revision History
  12. 11Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

5.9 Typical Characteristics

ADS9815 ADS9817 Typical INL With Low-Bandwidth LPF
 
Figure 5-6 Typical INL With Low-Bandwidth LPF
ADS9815 ADS9817 Typical DNL With Low-Noise LPF
 
Figure 5-8 Typical DNL With Low-Noise LPF
ADS9815 ADS9817 Typical FFT With Low-Bandwidth LPF, RANGE = ±5V
SNR = 91.5dBFS, THD = –113dB at fIN = 2kHz
Figure 5-10 Typical FFT With Low-Bandwidth LPF,
RANGE = ±5V
ADS9815 ADS9817 Typical FFT With Low-Bandwidth LPF, RANGE = ±10V
SNR = 92.1dBFS, THD = –113dB at fIN = 2kHz
Figure 5-12 Typical FFT With Low-Bandwidth LPF,
RANGE = ±10V
ADS9815 ADS9817 Low-Bandwidth LPF Frequency Response Across Input Ranges
Typical bandwidth (–3dB) = 21.2kHz
Figure 5-14 Low-Bandwidth LPF Frequency Response Across Input Ranges
ADS9815 ADS9817 SNR vs Input Signal Frequency Across Input Ranges With Low-Bandwidth LPF
 
Figure 5-16 SNR vs Input Signal Frequency Across Input Ranges With Low-Bandwidth LPF
ADS9815 ADS9817 THD vs Input Signal Frequency Across Input Ranges With Low-Bandwidth LPF
 
Figure 5-18 THD vs Input Signal Frequency Across Input Ranges With Low-Bandwidth LPF
ADS9815 ADS9817 SINAD vs Input Signal Frequency Across Input Ranges With Low-Bandwidth LPF
 
Figure 5-20 SINAD vs Input Signal Frequency Across Input Ranges With Low-Bandwidth LPF
ADS9815 ADS9817 THD vs Input Frequency, Low-BW Mode, RANGE = ±5V, ADS9817
 
Figure 5-22 THD vs Input Frequency, Low-BW Mode,
RANGE = ±5V, ADS9817
ADS9815 ADS9817 THD vs Input Frequency, Low-BW Mode, RANGE = ±10V, ADS9817
 
Figure 5-24 THD vs Input Frequency, Low-BW Mode,
RANGE = ±10V, ADS9817
ADS9815 ADS9817 THD vs Input Frequency, Low-BW Mode, RANGE = ±5V, ADS9815
 
Figure 5-26 THD vs Input Frequency, Low-BW Mode,
RANGE = ±5V, ADS9815
ADS9815 ADS9817 THD vs Input Frequency, Low-BW Mode, RANGE = ±10V, ADS9815
 
Figure 5-28 THD vs Input Frequency, Low-BW Mode,
RANGE = ±10V, ADS9815
ADS9815 ADS9817 THD vs Input Amplitude, RANGE = ±5V
 
Figure 5-30 THD vs Input Amplitude, RANGE = ±5V
ADS9815 ADS9817 INL vs Temperature
 
Figure 5-32 INL vs Temperature
ADS9815 ADS9817 Offset Error vs Temperature, RANGE = ±5V
 
Figure 5-34 Offset Error vs Temperature, RANGE = ±5V
ADS9815 ADS9817 Offset Error Drift Histogram
 
Figure 5-36 Offset Error Drift Histogram
ADS9815 ADS9817 Gain Error vs Temperature, RANGE = ±10V
 
Figure 5-38 Gain Error vs Temperature, RANGE = ±10V
ADS9815 ADS9817 DC Histogram of Codes for AINxP = AINxM = GND, Low-BW Mode, RANGE = ±5V
Mean = 131073.8LSB, standard deviation = 2.45LSB, number of hits = 4096
Figure 5-40 DC Histogram of Codes for AINxP = AINxM = GND, Low-BW Mode, RANGE = ±5V
ADS9815 ADS9817 DC Histogram of Codes for AINxP = AINxM = GND, Wide-BW Mode, RANGE = ±5V
Mean = 131074.4LSB, standard deviation = 5.47LSB, number of hits = 4096
Figure 5-42 DC Histogram of Codes for AINxP = AINxM = GND, Wide-BW Mode, RANGE = ±5V
ADS9815 ADS9817 REFIO vs Temperature
 
Figure 5-44 REFIO vs Temperature
ADS9815 ADS9817 Supply Currents and Total Power Dissipation vs Temperature
 
Figure 5-46 Supply Currents and Total Power Dissipation vs Temperature
ADS9815 ADS9817 Typical INL With Wide-Bandwidth LPF
 
Figure 5-7 Typical INL With Wide-Bandwidth LPF
ADS9815 ADS9817 Typical DNL With Wide-Bandwidth LPF
 
Figure 5-9 Typical DNL With Wide-Bandwidth LPF
ADS9815 ADS9817 Typical FFT With Wide-Bandwidth LPF, RANGE = ±5V
SNR = 84.5dBFS, THD = –113dB at fIN = 2kHz
Figure 5-11 Typical FFT With Wide-Bandwidth LPF,
RANGE = ±5V
ADS9815 ADS9817 Typical FFT With Wide-Bandwidth LPF, RANGE = ±10V
SNR = 85.5dBFS, THD = –113dB at fIN = 2kHz
Figure 5-13 Typical FFT With Wide-Bandwidth LPF,
RANGE = ±10V
ADS9815 ADS9817 Wide-Bandwidth LPF Frequency Response Across Input Ranges
 
Figure 5-15 Wide-Bandwidth LPF Frequency Response Across Input Ranges
ADS9815 ADS9817 SNR vs Input Signal Frequency Across Input Ranges With Wide-Bandwidth LPF
 
Figure 5-17 SNR vs Input Signal Frequency Across Input Ranges With Wide-Bandwidth LPF
ADS9815 ADS9817 THD vs Input Signal Frequency Across Input Ranges With Wide-Bandwidth LPF
 
Figure 5-19 THD vs Input Signal Frequency Across Input Ranges With Wide-Bandwidth LPF
ADS9815 ADS9817 SINAD vs Input Signal Frequency Across Input Ranges With Wide-Bandwidth LPF
 
Figure 5-21 SINAD vs Input Signal Frequency Across Input Ranges With Wide-Bandwidth LPF
ADS9815 ADS9817 THD vs Input Frequency, High-BW Mode, RANGE = ±5V, ADS9817
 
Figure 5-23 THD vs Input Frequency, High-BW Mode,
RANGE = ±5V, ADS9817
ADS9815 ADS9817 THD vs Input Frequency, High-BW Mode, RANGE = ±10V, ADS9817
 
Figure 5-25 THD vs Input Frequency, High-BW Mode,
RANGE = ±10V, ADS9817
ADS9815 ADS9817 THD vs Input Frequency, High-BW Mode, RANGE = ±5V, ADS9815
 
Figure 5-27 THD vs Input Frequency, High-BW Mode,
RANGE = ±5V, ADS9815
ADS9815 ADS9817 THD vs Input Frequency, High-BW Mode, RANGE = ±10V, ADS9815
 
Figure 5-29 THD vs Input Frequency, High-BW Mode,
RANGE = ±10V, ADS9815
ADS9815 ADS9817 THD vs Input Amplitude, RANGE = ±10V
 
Figure 5-31 THD vs Input Amplitude, RANGE = ±10V
ADS9815 ADS9817 DNL vs Temperature
 
Figure 5-33 DNL vs Temperature
ADS9815 ADS9817 Offset Error vs Temperature, RANGE = ±10V
 
Figure 5-35 Offset Error vs Temperature, RANGE = ±10V
ADS9815 ADS9817 Gain Error vs Temperature, RANGE = ±5V
 
Figure 5-37 Gain Error vs Temperature, RANGE = ±5V
ADS9815 ADS9817 Gain Error Drift Histogram
 
Figure 5-39 Gain Error Drift Histogram
ADS9815 ADS9817 DC Histogram of Codes for VIN = 1mV, Low-BW Mode, RANGE = ±5V
Mean = 131103.5LSB, standard deviation = 2.49LSB, number of hits = 4096
Figure 5-41 DC Histogram of Codes for VIN = 1mV, Low-BW Mode, RANGE = ±5V
ADS9815 ADS9817 DC Histogram of Codes for VIN = 1mV, Wide-BW Mode, RANGE = ±5V
Mean = 131102.3LSB, standard deviation = 5.68LSB, number of hits = 4096
Figure 5-43 DC Histogram of Codes for VIN = 1mV, Wide-BW Mode, RANGE = ±5V
ADS9815 ADS9817 REFOUT_2V5 vs Temperature
 
Figure 5-45 REFOUT_2V5 vs Temperature