• State Resolved
  • Locked Locked
  • Replies 1 reply
  • Subscribers 49 subscribers
  • Views 373 views
  • Users 0 members are here
Support feedback
Options
Options
Similar topics

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

TLV2471

Forrest Pierson
Prodigy 10 points

The data sheet does not specify what the maximum undershoot could be on an input into the op amp. Our application uses a voltage follower (output tied to the negative input). We clamp the positive input with a diode to the negative power supply and a diode to the positive power supply. How much undershoot/overshoot will the positive input tolerate without damaging the op amp?

  • 0
    TI__Mastermind 25775 points

    Hello Forrest,

    According to the datasheet, the input common-mode voltage is limited by the supply rails.  Though there is no current steering diode to VDD on the inputs, there is an ESD structure whose clamping voltage can vary with process.  While your clamping diodes will help protect the device, you can minimize the likelihood of triggering the ESD cell by using a low Vf schottky diode from the input to VDD.  We also recommend trying to limit the current into the non-inverting input terminal by including a series resistor (e.g. 1kohm).