Now we have inquiry regarding over voltage protection for LT1999 from our customer.
Please refer to the items below, and feedback us with your comment.
Due to the input voltage range change on current trial board which uses LT1999, we need to have some over voltage protection
We are thinking to use 4 10kohm resistor dividing for this protection. (Assumed maximum common mode voltage and differential voltage are 120 to 150V)
The circuit image is described as below for your reference.
Please let us clarify whether this protection could affect on any regulation for the system.
We thank you in advance for your confirmation.