SBAS852A August   2017  – February 2020 ADS114S06B , ADS114S08B

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
    1.     Device Images
      1.      Functional Block Diagram
  4. 4 Revision History
  5. 5 Device Comparison Table
  6. 6 Pin Configuration and Functions
    1.     Pin Functions
  7. 7 Specifications
    1. 7.1 Absolute Maximum Ratings
    2. 7.2 ESD Ratings
    3. 7.3 Recommended Operating Conditions
    4. 7.4 Thermal Information
    5. 7.5 Electrical Characteristics
    6. 7.6 Timing Requirements
    7. 7.7 Switching Characteristics
    8. 7.8 Typical Characteristics
  8. 8 Parameter Measurement Information
    1. 8.1 Noise Performance
  9. 9 Detailed Description
    1. 9.1 Overview
    2. 9.2 Functional Block Diagram
    3. 9.3 Feature Description
      1. 9.3.1  Multiplexer
      2. 9.3.2  Low-Noise Programmable Gain Amplifier
        1. 9.3.2.1 PGA Input-Voltage Requirements
        2. 9.3.2.2 Bypassing the PGA
      3. 9.3.3  Voltage Reference
        1. 9.3.3.1 Internal Reference
        2. 9.3.3.2 External Reference
        3. 9.3.3.3 Reference Buffers
      4. 9.3.4  Clock Source
      5. 9.3.5  Delta-Sigma Modulator
      6. 9.3.6  Digital Filter
        1. 9.3.6.1 Digital Filter Frequency Response
        2. 9.3.6.2 Data Conversion Time
        3. 9.3.6.3 Note on Conversion Time
        4. 9.3.6.4 50-Hz and 60-Hz Line Cycle Rejection
      7. 9.3.7  Excitation Current Sources (IDACs)
      8. 9.3.8  Bias Voltage Generation
      9. 9.3.9  System Monitor
        1. 9.3.9.1 Internal Temperature Sensor
        2. 9.3.9.2 Power Supply Monitors
        3. 9.3.9.3 Burn-Out Current Sources
      10. 9.3.10 Status Register
        1. 9.3.10.1 POR Flag
        2. 9.3.10.2 RDY Flag
        3. 9.3.10.3 External Reference Monitor
      11. 9.3.11 General-Purpose Inputs and Outputs (GPIOs)
      12. 9.3.12 Calibration
        1. 9.3.12.1 Offset Calibration
        2. 9.3.12.2 Gain Calibration
    4. 9.4 Device Functional Modes
      1. 9.4.1 Reset
        1. 9.4.1.1 Power-On Reset
        2. 9.4.1.2 RESET Pin
        3. 9.4.1.3 Reset by Command
      2. 9.4.2 Power-Down Mode
      3. 9.4.3 Standby Mode
      4. 9.4.4 Conversion Modes
        1. 9.4.4.1 Continuous Conversion Mode
        2. 9.4.4.2 Single-Shot Conversion Mode
    5. 9.5 Programming
      1. 9.5.1 Serial Interface
        1. 9.5.1.1 Chip Select (CS)
        2. 9.5.1.2 Serial Clock (SCLK)
        3. 9.5.1.3 Serial Data Input (DIN)
        4. 9.5.1.4 Serial Data Output and Data Ready (DOUT/DRDY)
        5. 9.5.1.5 Data Ready (DRDY)
        6. 9.5.1.6 Timeout
      2. 9.5.2 Data Format
      3. 9.5.3 Commands
        1. 9.5.3.1  NOP
        2. 9.5.3.2  WAKEUP
        3. 9.5.3.3  POWERDOWN
        4. 9.5.3.4  RESET
        5. 9.5.3.5  START
        6. 9.5.3.6  STOP
        7. 9.5.3.7  SYOCAL
        8. 9.5.3.8  SYGCAL
        9. 9.5.3.9  SFOCAL
        10. 9.5.3.10 RDATA
        11. 9.5.3.11 RREG
        12. 9.5.3.12 WREG
      4. 9.5.4 Interfacing with Multiple Devices
    6. 9.6 Register Map
      1. 9.6.1 Configuration Registers
      2. 9.6.2 Register Descriptions
        1. 9.6.2.1  Device ID Register (address = 00h) [reset = xxh]
          1. Table 16. Device ID (ID) Register Field Descriptions
        2. 9.6.2.2  Device Status Register (address = 01h) [reset = 80h]
          1. Table 17. Device Status (STATUS) Register Field Descriptions
        3. 9.6.2.3  Input Multiplexer Register (address = 02h) [reset = 01h]
          1. Table 18. Input Multiplexer (INPMUX) Register Field Descriptions
        4. 9.6.2.4  Gain Setting Register (address = 03h) [reset = 00h]
          1. Table 19. Gain Setting (PGA) Register Field Descriptions
        5. 9.6.2.5  Data Rate Register (address = 04h) [reset = 14h]
          1. Table 20. Data Rate (DATARATE) Register Field Descriptions
        6. 9.6.2.6  Reference Control Register (address = 05h) [reset = 10h]
          1. Table 21. Reference Control (REF) Register Field Descriptions
        7. 9.6.2.7  Excitation Current Register 1 (address = 06h) [reset = 00h]
          1. Table 22. Excitation Current Register 1 (IDACMAG) Register Field Descriptions
        8. 9.6.2.8  Excitation Current Register 2 (address = 07h) [reset = FFh]
          1. Table 23. Excitation Current Register 2 (IDACMUX) Register Field Descriptions
        9. 9.6.2.9  Sensor Biasing Register (address = 08h) [reset = 00h]
          1. Table 24. Sensor Biasing (VBIAS) Register Field Descriptions
        10. 9.6.2.10 System Control Register (address = 09h) [reset = 10h]
          1. Table 25. System Control (SYS) Register Field Descriptions
        11. 9.6.2.11 Reserved Register (address = 0Ah) [reset = 00h]
          1. Table 26. Reserved Register Field Descriptions
        12. 9.6.2.12 Offset Calibration Register 1 (address = 0Bh) [reset = 00h]
          1. Table 27. Offset Calibration Register 1 (OFCAL0) Register Field Descriptions
        13. 9.6.2.13 Offset Calibration Register 2 (address = 0Ch) [reset = 00h]
          1. Table 28. Offset Calibration Register 2 (OFCAL1) Register Field Descriptions
        14. 9.6.2.14 Reserved Register (address = 0Dh) [reset = 00h]
          1. Table 29. Reserved Register Field Descriptions
        15. 9.6.2.15 Gain Calibration Register 1 (address = 0Eh) [reset = 00h]
          1. Table 30. Gain Calibration Register 1 (FSCAL0) Field Descriptions
        16. 9.6.2.16 Gain Calibration Register 2 (address = 0Fh) [reset = 40h]
          1. Table 31. Gain Calibration Register 2 (FSCAL1) Field Descriptions
        17. 9.6.2.17 GPIO Data Register (address = 10h) [reset = 00h]
          1. Table 32. GPIO Data (GPIODAT) Register Field Descriptions
        18. 9.6.2.18 GPIO Configuration Register (address = 11h) [reset = 00h]
          1. Table 33. GPIO Configuration (GPIOCON) Register Field Descriptions
  10. 10Application and Implementation
    1. 10.1 Application Information
      1. 10.1.1 Serial Interface Connections
      2. 10.1.2 Analog Input Filtering
      3. 10.1.3 External Reference and Ratiometric Measurements
      4. 10.1.4 Establishing a Proper Input Voltage
      5. 10.1.5 Unused Inputs and Outputs
      6. 10.1.6 Pseudo Code Example
    2. 10.2 Typical Application
      1. 10.2.1 Design Requirements
      2. 10.2.2 Detailed Design Procedure
        1. 10.2.2.1 Register Settings
      3. 10.2.3 Application Curves
    3. 10.3 What To Do and What Not To Do
  11. 11Power Supply Recommendations
    1. 11.1 Power Supplies
    2. 11.2 Power-Supply Sequencing
    3. 11.3 Power-On Reset
    4. 11.4 Power-Supply Decoupling
  12. 12Layout
    1. 12.1 Layout Guidelines
    2. 12.2 Layout Example
  13. 13Device and Documentation Support
    1. 13.1 Device Support
      1. 13.1.1 Development Support
    2. 13.2 Documentation Support
      1. 13.2.1 Related Documentation
    3. 13.3 Related Links
    4. 13.4 Receiving Notification of Documentation Updates
    5. 13.5 Community Resources
    6. 13.6 Trademarks
    7. 13.7 Electrostatic Discharge Caution
    8. 13.8 Glossary
  14. 14Mechanical, Packaging, and Orderable Information

Package Options

Refer to the PDF data sheet for device specific package drawings

Mechanical Data (Package|Pins)
  • RHB|32
  • PBS|32
Thermal pad, mechanical data (Package|Pins)
Orderable Information

7.8 Typical Characteristics

at TA = 25°C, AVDD = 3.3 V, AVSS = 0 V, DVDD = IOVDD = 3.3 V, using internal VREF = 2.5 V, internal 4.096-MHz oscillator, and PGA enabled (unless otherwise noted)
ADS114S06B ADS114S08B D055_sbas852.gif
PGA bypassed, DR = 20 SPS, VIN = 0 V
Figure 7. Absolute Input Current vs Absolute Input Voltage
ADS114S06B ADS114S08B D053_sbas852.gif
PGA enabled, gain = 1, DR = 20 SPS, VIN = 0 V
Figure 9. Absolute Input Current vs Absolute Input Voltage
ADS114S06B ADS114S08B D051_sbas852.gif
PGA bypassed, DR = 20 SPS, VCM = 1.65 V
Figure 11. Differential Input Current vs Differential Input Voltage
ADS114S06B ADS114S08B D049_sbas852.gif
PGA enabled, DR = 20 SPS, VCM = 1.65 V
Figure 13. Differential Input Current vs Differential Input Voltage
ADS114S06B ADS114S08B D007_sbas660.gif
PGA bypassed, gain = 1
Figure 15. INL vs Differential Input Voltage
ADS114S06B ADS114S08B D020_sbas852.gif
Figure 17. INL vs Temperature
ADS114S06B ADS114S08B D022_sbas852.gif
Figure 19. Gain Error vs Temperature
ADS114S06B ADS114S08B D001_sbas660.gif
Figure 21. Internal Reference Voltage vs AVDD
ADS114S06B ADS114S08B D018_sbas660.gif
Figure 23. Internal Oscillator Frequency Histogram
ADS114S06B ADS114S08B D043_sbas660.gif
Figure 25. IDAC Accuracy vs Compliance Voltage
ADS114S06B ADS114S08B D045_sbas852.gif
IDAC output voltage = 1.65 V
Figure 27. IDAC Accuracy vs Temperature
ADS114S06B ADS114S08B D034_sbas852.gif
Figure 29. VBIAS Voltage [(AVDD – AVSS) / 2] vs Temperature
ADS114S06B ADS114S08B D060_sbas852.gif
AVDD = 3.3 V
Figure 31. GPIO Pin Output Voltage vs Sourcing Current
ADS114S06B ADS114S08B D058_sbas852.gif
DVDD = 3.3 V
Figure 33. Digital Pin Output Voltage vs Sourcing Current
ADS114S06B ADS114S08B D024_sbas852.gif
Standby and conversion mode, external VREF
Figure 35. Analog Supply Current vs Temperature
ADS114S06B ADS114S08B D029_sbas852.gif
Power-down mode
Figure 37. Analog Supply Current vs Temperature
ADS114S06B ADS114S08B D025_sbas852.gif
Standby and conversion mode
Figure 39. Digital Supply Current vs Temperature
ADS114S06B ADS114S08B D028_sbas852.gif
Power-down mode
Figure 41. Digital Supply Current vs Temperature
ADS114S06B ADS114S08B D054_sbas852.gif
PGA bypassed, DR = 4 kSPS, VIN = 0 V
Figure 8. Absolute Input Current vs Absolute Input Voltage
ADS114S06B ADS114S08B D052_sbas852.gif
PGA enabled, gain = 1, DR = 4 kSPS, VIN = 0 V
Figure 10. Absolute Input Current vs Absolute Input Voltage
ADS114S06B ADS114S08B D050_sbas852.gif
PGA bypassed, DR = 4 kSPS, VCM = 1.65 V
Figure 12. Differential Input Current vs Differential Input Voltage
ADS114S06B ADS114S08B D048_sbas852.gif
PGA enabled, DR = 4 kSPS, VCM = 1.65 V
Figure 14. Differential Input Current vs Differential Input Voltage
ADS114S06B ADS114S08B D008_sbas660.gif
PGA enabled, gain = 1
Figure 16. INL vs Differential Input Voltage
ADS114S06B ADS114S08B D021_sbas852.gif
Figure 18. Offset Voltage vs Temperature
ADS114S06B ADS114S08B D056_sbas852.gif
28 units, TQFP package
Figure 20. Internal Reference Voltage vs Temperature
ADS114S06B ADS114S08B D062_sbas660.gif
Figure 22. Internal Reference Voltage Noise
ADS114S06B ADS114S08B D057_sbas852.gif
28 units
Figure 24. Internal Oscillator Frequency vs Temperature
ADS114S06B ADS114S08B D044_sbas660.gif
Figure 26. IDAC Accuracy vs Compliance Voltage
ADS114S06B ADS114S08B D046_sbas852.gif
Figure 28. IDAC Matching vs Temperature
ADS114S06B ADS114S08B D004_sbas852.gif
Figure 30. Temperature Sensor Voltage vs Temperature
ADS114S06B ADS114S08B D061_sbas852.gif
AVDD = 3.3 V
Figure 32. GPIO Pin Output Voltage vs Sinking Current
ADS114S06B ADS114S08B D059_sbas852.gif
DVDD = 3.3 V
Figure 34. Digital Pin Output Voltage vs Sinking Current
ADS114S06B ADS114S08B D023_sbas660.gif
Conversion mode, external VREF
Figure 36. Analog Supply Current vs AVDD
ADS114S06B ADS114S08B D064_sbas852.gif
Figure 38. Internal Reference AVDD Current vs Temperature
ADS114S06B ADS114S08B D036_sbas660.gif
Conversion mode
Figure 40. Digital Supply Current vs DVDD