SBOS385B August   2019  – April 2021 INA597

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: G = 1/2
    6. 7.6 Electrical Characteristics: G = 2
    7. 7.7 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
  9. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Applications
      1. 9.2.1 Basic Power-Supply and Signal Connections
        1. 9.2.1.1 Design Requirements
        2. 9.2.1.2 Detailed Design Procedure
          1. 9.2.1.2.1 Operating Voltage
          2. 9.2.1.2.2 Offset Voltage Trim
          3. 9.2.1.2.3 Input Voltage Range
          4. 9.2.1.2.4 Capacitive Load Drive Capability
        3. 9.2.1.3 Application Curve
      2. 9.2.2 Precision Instrumentation Amplifier
      3. 9.2.3 Low Power, High-Output Current, Precision, Difference Amplifier
      4. 9.2.4 Pseudoground Generator
      5. 9.2.5 Differential Input Data Acquisition
      6. 9.2.6 Precision Voltage-to-Current Conversion
      7. 9.2.7 Additional Applications
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 Documentation Support
      1. 12.1.1 Related Documentation
    2. 12.2 Receiving Notification of Documentation Updates
    3. 12.3 Support Resources
    4. 12.4 Trademarks
    5. 12.5 Electrostatic Discharge Caution
    6. 12.6 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

Package Options

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

9.2.7 Additional Applications

Texas Instruments offers many complete high-performance instrumentation amplifiers. See Table 9-1 for some of the products with related performance.

Table 9-1 Recommended Op Amp Products to Use With the INA597
A1, A2FEATURESIMILAR TI IA
OPA27Low noiseINA103
OPA129Ultra-low bias current (fA)INA116
OPA177Low offset drift, low noiseINA114, INA128
OPA2130Low power, FET-input (pA)INA111
OPA2234Single supply, precision, low powerINA122. INA118
OPA2237SIngle supply, low power, 8-pin MSOPINA122, INA126

The difference amplifier is a highly versatile building block that is useful in a wide variety of applications. See the INA105data sheet for additional applications ideas, including:

  • Current receiver with compliance to rails
  • Precision unity-gain inverting amplifier
  • ±10-V precision voltage reference
  • ±5-V precision voltage reference
  • Precision unity-gain buffer
  • Precision average value amplifier
  • Precision G = 2 amplifier
  • Precision summing amplifier
  • Precision G = 1/2 amplifier
  • Precision bipolar offsetting
  • Precision summing amplifier with gain
  • Instrumentation amplifier guard drive generator
  • Precision summing instrumentation amplifier
  • Precision absolute value buffer
  • Precision voltage-to-current converter with differential inputs
  • Differential input voltage-to-current converter for low IOUT
  • Isolating current source
  • Differential output difference amplifier
  • Isolating current source with buffering amplifier for greater accuracy
  • Window comparator with window span and window center inputs
  • Precision voltage-controlled current source with buffered differential inputs and gain
  • Digitally controlled gain of ±1 amplifier