SBOS728A February   2015  – March 2021 INA225-Q1

PRODUCTION DATA  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
  6. 6 Specifications
    1. 6.1 Absolute Maximum Ratings (1)
    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 Selecting A Shunt Resistor
        1. 7.3.1.1 Selecting A Current-Sense Resistor Example
        2. 7.3.1.2 Optimizing Power Dissipation versus Measurement Accuracy
      2. 7.3.2 Programmable Gain Select
    4. 7.4 Device Functional Modes
      1. 7.4.1 Input Filtering
      2. 7.4.2 Shutting Down the Device
      3. 7.4.3 Using the Device with Common-Mode Transients Above 36 V
  8. 8 Applications and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Applications
      1. 8.2.1 Microcontroller-Configured Gain Selection
        1. 8.2.1.1 Design Requirements
        2. 8.2.1.2 Detailed Design Procedure
        3. 8.2.1.3 Application Curve
      2. 8.2.2 Unidirectional Operation
        1. 8.2.2.1 Design Requirements
        2. 8.2.2.2 Detailed Design Procedure
        3. 8.2.2.3 Application Curve
      3. 8.2.3 Bidirectional Operation
        1. 8.2.3.1 Design Requirements
        2. 8.2.3.2 Detailed Design Procedure
        3. 8.2.3.3 Application Curve
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
  11. 11Device and Documentation Support
    1. 11.1 Documentation Support
      1. 11.1.1 Related Documentation
    2. 11.2 Receiving Notification of Documentation Updates
    3. 11.3 Support Resources
    4. 11.4 Trademarks
    5. 11.5 Electrostatic Discharge Caution
    6. 11.6 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

Package Options

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

6.6 Typical Characteristics

At TA = +25 °C, VS = +5 V, VIN+ = 12 V, and VREF = VS / 2, unless otherwise noted.

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Figure 6-1 Input Offset Voltage Production Distribution
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Figure 6-3 Common-Mode Rejection Production Distribution
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Figure 6-5 Gain Error Production Distribution (Gain = 25 V/V)
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Figure 6-7 Gain Error Production Distribution (Gain = 100 V/V)
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Figure 6-9 Gain Error vs. Temperature
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VCM = 0 VVREF = 2.5 VVSENSE = 0 mV, Shorted
VS = 5 V + 250-mV Sine Disturbance
Figure 6-11 Power-Supply Rejection Ratio vs. Frequency
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Figure 6-13 Output Voltage Swing vs Output Current
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Figure 6-15 Input Bias Current vs. Common-Mode Voltage (Supply Voltage = +5 V)
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VS = 5 VVCM = 12 V
Figure 6-17 Input Bias Current vs. Temperature
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Figure 6-19 Quiescent Current vs. Supply Voltage
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VS = ± 2.5 VVCM = 0 VVSENSE = 0 mV, Shorted
Figure 6-21 0.1-Hz to 10-Hz Voltage Noise (Referred-to-Input)
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Figure 6-23 Step Response (Gain = 50 V/V, 2-VPP Output Step)
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Figure 6-25 Step Response (Gain = 200 V/V, 2-VPP Output Step)
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VDIFF = 20 mV VOUT at 25-V/V Gain = 500 mV
VOUT at 100-V/V Gain = 2 V
Figure 6-27 Gain Change Output Response (Gain = 25 V/V to 100 V/V)
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VDIFF = 20 mV VOUT at 100-V/V Gain = 2 V
VOUT at 200-V/V Gain = 4 V
Figure 6-29 Gain Change Output Response (Gain = 100 V/V to 200 V/V)
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Figure 6-31 Gain Change Output Response From Saturation (Gain = 100 V/V to 25 V/V)
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Figure 6-33 Gain Change Output Response From Saturation (Gain = 200 V/V to 100 V/V)
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Figure 6-35 Start-Up Response
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Figure 6-2 Input Offset Voltage vs. Temperature
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Figure 6-4 Common-Mode Rejection Ratio vs. Temperature
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Figure 6-6 Gain Error Production Distribution (Gain = 50 V/V)
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Figure 6-8 Gain Error Production Distribution (Gain = 200 V/V)
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VCM = 0 VVSENSE = 15 mVPP
Figure 6-10 Gain vs. Frequency
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VS = 5 VVREF = 2.5 VVSENSE = 0 mV, Shorted
VCM = 1-V Sine Wave
Figure 6-12 Common-Mode Rejection Ratio vs. Frequency
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Unidirectional, REF = GNDBidirectional, REF > GND
Figure 6-14 Unidirectional Output Voltage Swing vs. Temperature
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Figure 6-16 Input Bias Current vs. Common-Mode Voltage (Supply Voltage = 0 V, Shutdown)
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Figure 6-18 Quiescent Current vs. Temperature
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VS = ± 2.5 VVREF = 0 VVSENSE = 0 mV, Shorted
Figure 6-20 Input-Referred Voltage Noise vs. Frequency
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Figure 6-22 Step Response (Gain = 25 V/V, 2-VPP Output Step)
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Figure 6-24 Step Response (Gain = 100 V/V, 2-VPP Output Step)
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VDIFF = 20 mV VOUT at 25-V/V Gain = 500 mV
VOUT at 50-V/V Gain = 1 V
Figure 6-26 Gain Change Output Response (Gain = 25 V/V to 50 V/V)
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VDIFF = 20 mV VOUT at 50-V/V Gain = 1 V
VOUT at 200-V/V Gain = 4 V
Figure 6-28 Gain Change Output Response (Gain = 50 V/V to 200 V/V)
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Figure 6-30 Gain Change Output Response From Saturation (Gain = 50 V/V to 25 V/V)
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Figure 6-32 Gain Change Output Response From Saturation (Gain = 200 V/V to 50 V/V)
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Figure 6-34 Common-Mode Voltage Transient Response