SBOS818B December   2016  – November 2018 INA1650 , INA1651

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
    1.     INA165x Simplified Internal Schematic
  3. 3 Description
    1.     CMRR Histogram (5746 Channels)
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
    1.     Pin Functions
    2.     Pin Functions
  6. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 ESD Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information
    5. 6.5 Electrical Characteristics:
    6. 6.6 Typical Characteristics
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Audio Signal Path
      2. 7.3.2 Supply Divider
      3. 7.3.3 Electrical Overstress
      4. 7.3.4 Thermal Shutdown
    4. 7.4 Device Functional Modes
      1. 7.4.1 Single-Supply Operation
  8. 8 Application and Implementation
    1. 8.1 Application Information
      1. 8.1.1 Input Common-Mode Range
      2. 8.1.2 Common-Mode Input Impedance
      3. 8.1.3 Start-Up Time in Single-Supply Applications
      4. 8.1.4 Input AC Coupling
      5. 8.1.5 Supply Divider Capacitive Loading
    2. 8.2 Typical Applications
      1. 8.2.1 Line Receiver for Differential Audio Signals in a Split-Supply System
        1. 8.2.1.1 Design Requirements
        2. 8.2.1.2 Detailed Design Procedure
        3. 8.2.1.3 Application Curves
      2. 8.2.2 Differential Line Receiver for Single-Supply Applications
      3. 8.2.3 Floating Single-Ended Input Line Receiver for Ground Loop Noise Reduction
      4. 8.2.4 Floating Single-Ended Input Line Receiver With Differential Outputs
      5. 8.2.5 TRS Audio Interface in Single-Supply Applications
      6. 8.2.6 Differential Line Driver With Single-Ended Input
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Examples
  11. 11Device and Documentation Support
    1. 11.1 Device Support
      1. 11.1.1 Development Support
        1. 11.1.1.1 TINA-TI (Free Software Download)
        2. 11.1.1.2 TI Precision Designs
    2. 11.2 Documentation Support
      1. 11.2.1 Related Documentation
    3. 11.3 Related Links
    4. 11.4 Receiving Notification of Documentation Updates
    5. 11.5 Community Resources
    6. 11.6 Trademarks
    7. 11.7 Electrostatic Discharge Caution
    8. 11.8 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

Package Options

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

8.1.5 Supply Divider Capacitive Loading

The VMID(OUT) pin of the INA165x is stable with capacitive loads up to 150 pF. An isolation resistor (RISO in Figure 49), must be used if capacitive loads larger than 150 pF are connected to the VMID(OUT) pin. Figure 49 shows the recommended configuration of an isolation resistor in series with the capacitive load. The REF pins of the INA1650 must connect directly to the VMID(OUT) pin before the isolation resistor. Any resistance placed between the VMID(OUT) pin and the reference pins degrades the CMRR of the device. Figure 50 shows the recommended value for the isolation resistor for increasing capacitive loads.

INA1650 INA1651 AI_D004.gifFigure 49. Place an Isolation Resistor Between the VMID(OUT) Pin and Large Capacitive Loads
INA1650 INA1651 C042_SBOS618.pngFigure 50. Recommended Isolation Resistor Value vs Capacitive Load