SLVAEX7A December   2020  – January 2023 OPA2310 , OPA310 , OPA348 , OPA4310 , TLV341 , TLV341A , TLV342 , TLV342A

 

  1.   Abstract
  2.   Trademarks
  3. 1Introduction
  4. 2Standard Op Amp ESD Protection
    1. 2.1 Standard Op Amp ESD Protection: Structure
    2. 2.2 Standard Op Amp ESD Protection: Considerations
  5. 3Op Amp ESD Protection Without Input Diodes to V+
    1. 3.1 Op Amp ESD Protection Without Input Diodes to V+: Structure
    2. 3.2 Op Amp ESD Protection Without Input Diodes to V+: Considerations
  6. 4How to Measure the ESD Structure Current of an Op Amp
  7. 5Summary
  8. 6References
  9. 7Revision History
  10.   A Measured Data for Op Amps With Alternate ESD Protection

5 Summary

Most amplifiers come with standard ESD diode structures to protect them from sudden, high-voltage discharges. Although these are robust circuits, alternative protection structures are preferable in some applications. It is important for analog circuit engineers to understand the strengths and limits of different ESD protection circuits and to be able to verify the type of protection structure of an op amp depending on the input voltage behavior and power supply sequencing.