SBOS027C September   2000  – September 2022 INA118

PRODUCTION DATA  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Device Comparison Table
  6. 6 Pin Configuration and Functions
  7. 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
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
    4. 8.4 Device Functional Modes
      1. 8.4.1 Noise Performance
      2. 8.4.2 Input Common-Mode Range
      3. 8.4.3 Input Protection
  9. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
        1. 9.2.2.1 Setting the Gain
        2. 9.2.2.2 Dynamic Performance
        3. 9.2.2.3 Offset Trimming
        4. 9.2.2.4 Input Bias Current Return Path
      3. 9.2.3 Application Curves
    3. 9.3 Power Supply Recommendations
      1. 9.3.1 Low-Voltage Operation
      2. 9.3.2 Single-Supply Operation
    4. 9.4 Layout
      1. 9.4.1 Layout Guidelines
      2. 9.4.2 Layout Example
  10. 10Device and Documentation Support
    1. 10.1 Device Support
      1. 10.1.1 Development Support
    2. 10.2 Receiving Notification of Documentation Updates
    3. 10.3 Support Resources
    4. 10.4 Trademarks
    5. 10.5 Electrostatic Discharge Caution
    6. 10.6 Glossary
  11. 11Mechanical, Packaging, and Orderable Information

Package Options

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

9.3.1 Low-Voltage Operation

The INA118 operates on power supplies as low as ±2.25 V. Performance of the INA118 remains excellent with power supplies ranging from ±2.25 V to ±18 V. Most parameters vary only slightly throughout this supply voltage range; see also Section 7.6. Operation at low supply voltage requires careful attention to make sure that the input voltages remain within the respective linear range. Voltage swing requirements of internal nodes limit the input common-mode range with low power supply voltage. Figure 7-3 shows the range of linear operation for a various supply voltages and gains.

GUID-008D6B7C-91C9-4938-B116-3F94CB1230B8-low.gifFigure 9-6 AC-Coupled Instrumentation Amplifier
GUID-D3C57519-87DF-4493-925F-45E3CDD04C5F-low.gifFigure 9-8 Differential Voltage to Current Converter
GUID-837FD4A4-B099-4785-800C-F3D770765FF4-low.gifFigure 9-7 Thermocouple Amplifier With Cold Junction Compensation
GUID-2022D07D-2572-4672-8BBB-E328DDAB42C0-low.gifFigure 9-9 ECG Amplifier With Right-Leg Drive