SBOSAE0B April   2023  – September 2023 PGA855

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Revision History
  6. 5 Device Comparison Table
  7. 6 Pin Configuration and Functions
  8. 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 Typical Characteristics
  9. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Gain Control
      2. 8.3.2 Input Protection
      3. 8.3.3 Output Common-Mode Pin
      4. 8.3.4 Using the Fully Differential Output Amplifier to Shape Noise
    4. 8.4 Device Functional Modes
  10. 9 Application and Implementation
    1. 9.1 Application Information
      1. 9.1.1 Linear Operating Input Range
    2. 9.2 Typical Applications
      1. 9.2.1 ADS127L11 and ADS127L21, 24-Bit, Delta-Sigma ADC Driver Circuit
        1. 9.2.1.1 Design Requirements
        2. 9.2.1.2 Detailed Design Procedure
        3. 9.2.1.3 Application Curves
      2. 9.2.2 ADS8900B 20-Bit SAR ADC Driver Circuit
        1. 9.2.2.1 Design Requirements
        2. 9.2.2.2 Detailed Design Procedure
        3. 9.2.2.3 Application Curves
    3. 9.3 Power Supply Recommendations
    4. 9.4 Layout
      1. 9.4.1 Layout Guidelines
      2. 9.4.2 Layout Example
  11. 10Device and Documentation Support
    1. 10.1 Device Support
      1. 10.1.1 Development Support
        1. 10.1.1.1 PSpice® for TI
    2. 10.2 Documentation Support
      1. 10.2.1 Related Documentation
    3. 10.3 Receiving Notification of Documentation Updates
    4. 10.4 Support Resources
    5. 10.5 Trademarks
    6. 10.6 Electrostatic Discharge Caution
    7. 10.7 Glossary
  12. 11Mechanical, Packaging, and Orderable Information

Package Options

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

9.1.1 Linear Operating Input Range

The linear operating input voltage range of the PGA855 input circuitry extends within 2.5 V (maximum) of both power supplies, and maintains excellent common-mode rejection throughout this range. The linear operating input common-mode range is a function of the input common-mode voltage, input differential voltage, gain, and output common-mode voltage.

The valid common-mode range to enable valid output voltage at no load condition are shown in Figure 9-1 to Figure 9-3.

GUID-20230915-SS0I-4WX2-JF9W-R5GN75DGXHPQ-low.svg
VS = VSOUT = ±5 V, ±15 V VOCM = 0 V G = 16 V/V
Figure 9-1 Input Common-Mode Voltage vs Output Voltage at G = 16 V/V
GUID-20230913-SS0I-M108-5CLF-JKLFWTVPG765-low.svg
VS = VSOUT = ±5 V, ±15 V VOCM = 0 V G = 0.125 V/V
Figure 9-3 Input Common-Mode Voltage vs Output Voltage at G = 0.125 V/V
GUID-20230915-SS0I-0FFF-HWXG-RMQWHQBG6FQL-low.svg
VS = VSOUT = ±15 V G = 1 V/V
Figure 9-5 Input Common-Mode Voltage vs Output Voltage at VOCM max
GUID-20230913-SS0I-FGL0-5TVT-82T9ZSLVJ3ZF-low.svg
VS = VSOUT = ±5 V, ±15 V VOCM = 0 V G = 1 V/V
Figure 9-2 Input Common-Mode Voltage vs Output Voltage at G = 1 V/V
GUID-20230915-SS0I-F6QV-RVB9-HV6G2DFJLL5X-low.svg
VS = ±15 V VSOUT = 5 V
Figure 9-4 Input Common-Mode Voltage vs Output Voltage at VOCM = 2.5 V