SBOS925E December   2020  – October 2024 OPA2391 , OPA391 , OPA4391

PRODMIX  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Pin Configuration and Functions
  6. 5 Specifications
    1. 5.1 Absolute Maximum Ratings
    2. 5.2 ESD Ratings
    3. 5.3 Recommended Operating Conditions
    4. 5.4 Thermal Information: OPA391
    5. 5.5 Thermal Information: OPA2391
    6. 5.6 Thermal Information: OPA4391
    7. 5.7 Electrical Characteristics: OPA391DCK and OPA2391YBJ
    8. 5.8 Electrical Characteristics: OPA2391DGK and OPA4391PW
    9. 5.9 Typical Characteristics
  7. 6 Detailed Description
    1. 6.1 Overview
    2. 6.2 Functional Block Diagram
    3. 6.3 Feature Description
      1. 6.3.1 Low Input Bias Current
      2. 6.3.2 Input Differential Voltage
      3. 6.3.3 Capacitive Load Drive
      4. 6.3.4 EMI Rejection
    4. 6.4 Device Functional Modes
  8. 7 Application and Implementation
    1. 7.1 Application Information
    2. 7.2 Typical Applications
      1. 7.2.1 Three-Terminal CO Gas Sensor
        1. 7.2.1.1 Design Requirements
        2. 7.2.1.2 Detailed Design Procedure
        3. 7.2.1.3 Application Curve
      2. 7.2.2 4-mA to 20-mA Loop Design
        1. 7.2.2.1 Application Curve
    3. 7.3 Power Supply Recommendations
    4. 7.4 Layout
      1. 7.4.1 Layout Guidelines
      2. 7.4.2 Layout Example
  9. 8 Device and Documentation Support
    1. 8.1 Device Support
      1. 8.1.1 Development Support
        1. 8.1.1.1 PSpice® for TI
        2. 8.1.1.2 TINA-TI™ Simulation Software (Free Download)
    2. 8.2 Documentation Support
      1. 8.2.1 Related Documentation
    3. 8.3 Receiving Notification of Documentation Updates
    4. 8.4 Support Resources
    5. 8.5 Trademarks
    6. 8.6 Electrostatic Discharge Caution
    7. 8.7 Glossary
  10. 9 Revision History
  11. 10Mechanical, Packaging, and Orderable Information

Package Options

Refer to the PDF data sheet for device specific package drawings

Mechanical Data (Package|Pins)
  • DGK|8
  • YBJ|9
Thermal pad, mechanical data (Package|Pins)
Orderable Information

9 Revision History

Changes from Revision D (April 2024) to Revision E (October 2024)

  • Changed status of OPA2391 in DGK (VSSOP, 8) package from preview to production data (active)Go
  • Changed the load condition for Gain-bandwidth product from 10kΩ to no load.Go
  • Changed the min AOL of OPA4391 for the low supply condition from 90dB to 86dB based on the latest characterization dataGo
  • Changed the load condition for Gain-bandwidth product from 10kΩ to no loadGo

Changes from Revision C (December 2022) to Revision D (April 2024)

  • Changed status of OPA4391 in PW (TSSOP, 14) package from preview to production data (active)Go
  • Added minimum value for Short-circuit current.Go
  • Changed the typical value of Open-loop output impedance from 500Ω to 1.6kΩ to match the typical characteristic curve.Go
  • Changed IQ from 24 µA to 23.5 µA based on the latest characterization dataGo

Changes from Revision B (November 2022) to Revision C (December 2022)

  • Changed status of OPA2391 in YBJ (DSBGA, 9) package from advanced information (preview) to production data (active) and added associated contentGo

Changes from Revision A (January 2021) to Revision B (November 2022)

  • Added OPA2391 advanced information (preview) device and associated contentGo
  • Added junction temperature to Absolute Maximum Ratings Go
  • Changed JEDEC specification from JESD22-C101 to ANSI/ESDA/JEDEC JS-002Go
  • Changed input common-mode voltage condition for input voltage noise in the Electrical Characteristics Go
  • Changed Figure 6-7, Open-Loop Gain and Phase vs Freq, Y-axis scale for clarity; no change to dataGo
  • Changed Figure 8-7, Layout Example, to show correct pin configuration and namesGo