Hello everyone,
Now i have used the circuit as below to make a PCB board for generating the triangular waveform with 2MHz.
View attachment 141164
At first it works and the output of the comparator is also sawtooth waveform between 0V and 5V with 2MHz. But after i have tested the sawtooth waveform via oscilloscope after the comparator LTC6752 a few times, the comparator is going broken. I don't know why i test the signal can make the comparator broken. What's worse is, i have change the new LTC6752 as comparator in the PCB, and at first the output is not right. So i have to check the solder, and once more time to test. After a few times repeat like this, the comparator is once again broken. The character of broken is the output is directly 5V, not the sawtooth waveform between 0V and 5V.

I don't know what is the reason. Could you give me some advice? Thanks in advance.

 

Hello,

The circuit given is already being discussed in this thread:
Using MAX038 to generate triangular waveform with 2MHz

Bertus