SBOSAK3 July   2025 INA299-Q1

PRODUCTION DATA  

  1.   1
  2. Features
  3. Applications
  4. Description
  5. Pin Configuration and Functions
  6. 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 Typical Characteristics
  7. Detailed Description
    1. 6.1 Overview
    2. 6.2 Functional Block Diagram
    3. 6.3 Feature Description
      1. 6.3.1 Amplifier Input Common-Mode Signal
      2. 6.3.2 Low Input Bias Current
      3. 6.3.3 Low VSENSE Operation
      4. 6.3.4 Wide Fixed Gain Output
      5. 6.3.5 Wide Supply Range
    4. 6.4 Device Functional Modes
      1. 6.4.1 Adjusting the Output With the Reference Pin
      2. 6.4.2 Reference Pin Connections for Unidirectional Current Measurements
        1. 6.4.2.1 Ground Referenced Output
        2. 6.4.2.2 VS Referenced Output
      3. 6.4.3 Reference Pin Connections for Bidirectional Current Measurements
        1. 6.4.3.1 Output Set to External Reference Voltage
        2. 6.4.3.2 Output Set to Mid-Supply Voltage
  8. Application and Implementation
    1. 7.1 Application Information
      1. 7.1.1 RSENSE and Device Gain Selection
    2. 7.2 Typical Application
      1. 7.2.1 High-side Current Sensing in Motor Application
        1. 7.2.1.1 Design Requirements
        2. 7.2.1.2 Detailed Design Procedure
        3. 7.2.1.3 Application Curve
    3. 7.3 Power Supply Recommendations
      1. 7.3.1 Power Supply Decoupling
    4. 7.4 Layout
      1. 7.4.1 Layout Guidelines
      2. 7.4.2 Layout Examples
  9. Device and Documentation Support
    1. 8.1 Documentation Support
      1. 8.1.1 Related Documentation
    2. 8.2 Receiving Notification of Documentation Updates
    3. 8.3 Support Resources
    4. 8.4 Trademarks
    5. 8.5 Electrostatic Discharge Caution
    6. 8.6 Glossary
  10. Revision History
  11. 10Mechanical, Packaging, and Orderable Information

Typical Characteristics

at TA = 25°C, VS = 5V, VSENSE = VIN+ – VIN– = 0V, VCM = VIN– = 48V, and VREF = VS / 2 (unless otherwise noted)

INA299-Q1 INA299-Q1 Input Offset Voltage Production DistributionFigure 5-1 INA299-Q1 Input Offset Voltage Production Distribution
INA299-Q1 Input Offset
            Voltage vs Common-Mode VoltageFigure 5-3 Input Offset Voltage vs Common-Mode Voltage
INA299-Q1 Common-Mode
            Rejection Ratio vs FrequencyFigure 5-5 Common-Mode Rejection Ratio vs Frequency
INA299-Q1 INA299-Q1 Gain Error Production DistributionFigure 5-7 INA299-Q1 Gain Error Production Distribution
INA299-Q1 Power-Supply
            Rejection Ratio vs TemperatureFigure 5-9 Power-Supply Rejection Ratio vs Temperature
INA299-Q1 Input Bias
            Current vs Common-Mode VoltageFigure 5-11 Input Bias Current vs Common-Mode Voltage
INA299-Q1 INA299-Q1 Gain = 20V/V, Input Bias Current vs
            VSENSEFigure 5-13 INA299-Q1 Gain = 20V/V, Input Bias Current vs VSENSE
INA299-Q1 INA299-Q1 Gain = 100V/V Input Bias Current vs
            VSENSEFigure 5-15 INA299-Q1 Gain = 100V/V Input Bias Current vs VSENSE
INA299-Q1 Output Voltage
            vs Output Current
VS = 5V Gain = 20V/V
Figure 5-17 Output Voltage vs Output Current
INA299-Q1 Output
            Impedance vs Frequency
Figure 5-19 Output Impedance vs Frequency
INA299-Q1 Swing to GND vs
            Temperature
RL = 10kΩ to GND
Figure 5-21 Swing to GND vs Temperature
INA299-Q1 0.1Hz to 10Hz
            Voltage NoiseFigure 5-23 0.1Hz to 10Hz Voltage Noise
INA299-Q1 Quiescent
            Current vs Temperature
Gain = 20V/V
Figure 5-25 Quiescent Current vs Temperature
INA299-Q1 Quiescent
            Current vs Common-Mode Voltage
Gain = 20V/V
Figure 5-27 Quiescent Current vs Common-Mode Voltage
INA299-Q1 Small Step
            Response
VCM = 12V Gain = 20V/V
Figure 5-29 Small Step Response
INA299-Q1 Start-Up
            ResponseFigure 5-31 Start-Up Response
INA299-Q1 Input Offset
            Voltage vs TemperatureFigure 5-2 Input Offset Voltage vs Temperature
INA299-Q1 Common-Mode
            Rejection Ratio vs TemperatureFigure 5-4 Common-Mode Rejection Ratio vs Temperature
INA299-Q1 Gain vs
            FrequencyFigure 5-6 Gain vs Frequency
INA299-Q1 Gain Error vs
            TemperatureFigure 5-8 Gain Error vs Temperature
INA299-Q1 Power-Supply
            Rejection Ratio vs FrequencyFigure 5-10 Power-Supply Rejection Ratio vs Frequency
INA299-Q1 Input Bias
            Current vs TemperatureFigure 5-12 Input Bias Current vs Temperature
INA299-Q1 INA299-Q1 Gain = 50V/V, Input Bias Current vs
            VSENSEFigure 5-14 INA299-Q1 Gain = 50V/V, Input Bias Current vs VSENSE
INA299-Q1 Output Voltage
            vs Output Current
VS = 2.7V Gain = 20V/V
Figure 5-16 Output Voltage vs Output Current
INA299-Q1 Output Voltage
            vs Output Current
VS = 12V Gain = 20V/V
Figure 5-18 Output Voltage vs Output Current
INA299-Q1 Swing to Supply
            vs Temperature
RL = 10kΩ to GND
Figure 5-20 Swing to Supply vs Temperature
INA299-Q1 Input Referred
            Noise vs FrequencyFigure 5-22 Input Referred Noise vs Frequency
INA299-Q1 Short-Circuit
            Current vs Temperature
VCM = 12V Gain = 20V/V
Figure 5-24 Short-Circuit Current vs Temperature
INA299-Q1 Quiescent
            Current vs Supply VoltageFigure 5-26 Quiescent Current vs Supply Voltage
INA299-Q1 Common-Mode
            Voltage Fast Transient PulseFigure 5-28 Common-Mode Voltage Fast Transient Pulse
INA299-Q1 Large Step
            Response
VCM = 12V Gain = 20V/V
Figure 5-30 Large Step Response
INA299-Q1 Brownout
            RecoveryFigure 5-32 Brownout Recovery