SLYS020C february   2019  – august 2021 INA191 , INA2191

PRODUCTION DATA  

  1.   1
  2. Features
  3. Applications
  4. Description
  5. Revision History
  6. Pin Configuration and Functions
  7. 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
  8. Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Precision Current Measurement
      2. 7.3.2 Low Input Bias Current
      3. 7.3.3 Low Quiescent Current With Output Enable
      4. 7.3.4 Bidirectional Current Monitoring (INA2191 Only)
      5. 7.3.5 High-Side and Low-Side Current Sensing
      6. 7.3.6 High Common-Mode Rejection
      7. 7.3.7 Rail-to-Rail Output Swing
    4. 7.4 Device Functional Modes
      1. 7.4.1 Normal Operation
      2. 7.4.2 Unidirectional Mode
      3. 7.4.3 Bidirectional Mode (INA2191 Only)
      4. 7.4.4 Input Differential Overload
      5. 7.4.5 Shutdown
  9. Application and Implementation
    1. 8.1 Application Information
      1. 8.1.1 Basic Connections
      2. 8.1.2 RSENSE and Device Gain Selection
      3. 8.1.3 Signal Conditioning
      4. 8.1.4 Common-Mode Voltage Transients
    2. 8.2 Typical Application
      1. 8.2.1 Microamp Current Measurement
        1. 8.2.1.1 Design Requirements
        2. 8.2.1.2 Detailed Design Procedure
        3. 8.2.1.3 Application Curve
  10. Power Supply Recommendations
  11. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Examples
  12. 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
  13. 12Mechanical, Packaging, and Orderable Information

Package Options

Refer to the PDF data sheet for device specific package drawings

Mechanical Data (Package|Pins)
  • YFD|6
Thermal pad, mechanical data (Package|Pins)
Orderable Information

Typical Characteristics

at TA = 25 °C, VS = 1.8 V, VIN+ = 12 V, VENABLE = VS, VREF = GND and all gain options (unless otherwise noted)

GUID-F481640B-BED2-4F4B-9A54-0B5F5915842B-low.gif
Figure 6-1 Input Offset Voltage Production Distribution
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Figure 6-3 Common-Mode Rejection Production Distribution
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A1 devices
Figure 6-5 Gain Error Production Distribution (INA191)
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A2, A3, A4, A5 devices
Figure 6-7 Gain Error Production Distribution
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VS = 5 V
Figure 6-9 Gain vs. Frequency
GUID-476A2583-EC0D-45E3-A101-AF06411A63CE-low.gifFigure 6-11 Common-Mode Rejection Ratio vs. Frequency
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VS = 5.0 V
Figure 6-13 Output Voltage Swing vs. Output Current
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VENABLE = 0 V, VSENSE = 0 V
Figure 6-15 Input Bias Current vs. Common-Mode Voltage (Shutdown)
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VENABLE = VS
Figure 6-17 Quiescent Current vs. Temperature (INA191)
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VENABLE1 = VENABLE2 = VS

, VREF = VS /2

Figure 6-19 Quiescent Current vs. Temperature (INA2191 )
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VENABLE1 = VENABLE2 = 0 V, VREF = VS /2
Figure 6-21 Quiescent Current vs. Temperature (INA2191 Disabled)
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VREF = VS /2
Figure 6-23 Quiescent Current vs. Common-Mode Voltage (INA2191)
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Figure 6-25 0.1-Hz to 10-Hz Input-Referred Voltage Noise
GUID-20210701-CA0I-0V48-6RPH-MHTWWP2JKPF7-low.gifFigure 6-27 Common-Mode Voltage Transient Response
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VS = 5.0 V
Figure 6-29 Noninverting Differential Input Overload Recovery
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VS = 5.0 V, A3 device
Figure 6-31 Brownout Recovery
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VS = 5.0 V, A1 device
Figure 6-33 IB+ and IB– vs. Differential Input Voltage (INA191)
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VS = 5.0 V, VREF = VS /2, A1 device
Figure 6-35 IB+ and IB– vs. Differential Input Voltage (INA2191)
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VS = 5.0 V, VENABLE = 0 V, A1, A2, A3 devices
Figure 6-37 Output Leakage vs. Output Voltage
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VS = 5.0 V, VENABLE = 0 V, VREF = 2.5 V, A1, A2, A3 devices
Figure 6-39 Output Leakage vs. Output Voltage (INA2191)
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VS = 5.0 V, VCM = 0 V
Figure 6-41 Output Impedance vs. Frequency
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Figure 6-2 Offset Voltage vs. Temperature
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Figure 6-4 Common-Mode Rejection Ratio vs. Temperature
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A1 Devices

Figure 6-6 Gain Error Production Distribution (INA2191)
GUID-3938DFB4-18CB-4874-9943-001447DB71E6-low.gifFigure 6-8 Gain Error vs. Temperature
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VS = 5 V
Figure 6-10 Power-Supply Rejection Ratio vs. Frequency
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VS = 1.8 V
Figure 6-12 Output Voltage Swing vs. Output Current
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VS = 5.0 V, VSENSE = 0 V
Figure 6-14 Input Bias Current vs. Common-Mode Voltage
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VSENSE = 0 V
Figure 6-16 Input Bias Current vs. Temperature
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Single channel enabled, VREF = VS /2
Figure 6-18 Quiescent Current vs. Temperature (INA2191 )
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VENABLE = 0 V
Figure 6-20 Quiescent Current vs. Temperature (INA191 Disabled)
GUID-A3B7EF97-B558-4110-BE42-66B981E1F0D2-low.gifFigure 6-22 Quiescent Current vs. Common-Mode Voltage (INA191)
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Figure 6-24 Input-Referred Voltage Noise vs. Frequency
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VS = 5.0 V, 10-mVPP input step
Figure 6-26 Step Response
GUID-5CC9A571-C990-4CF5-A3BD-481A7138F483-low.gifFigure 6-28 Inverting Differential Input Overload Recovery
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VS = 5.0 V, A2 device
Figure 6-30 Start-Up Response
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VS = 5.0 V, A3 device
Figure 6-32 Enable and Disable Response
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VS = 5.0 V, A2, A3, A4, A5 devices
Figure 6-34 IB+ and IB– vs. Differential Input Voltage (INA191)

GUID-20210701-CA0I-NRZD-PQ4K-C2LQGCQRJP2D-low.svg
VS = 5.0 V, VREF = VS /2, A2, A3, A4, A5 devices
Figure 6-36 IB+ and IB– vs. Differential Input Voltage (INA2191)
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VS = 5.0 V, VENABLE = 0 V, A4, A5 devices
Figure 6-38 Output Leakage vs. Output Voltage
GUID-2A2CB5CB-0E9E-4A47-9643-28A4D4733590-low.gif
VS = 5.0 V, VENABLE = 0 V, VREF = 2.5 V, A4, A5 devices
Figure 6-40 Output Leakage vs. Output Voltage (INA2191)
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VS = 5.0 V, VCM = 0 V, VREF = VS /2
Figure 6-42 Channel Separation vs. Frequency (INA2191)