TLV3502 jitter

Ignacio;

Your question raises some interesting questions about both the LTC and TI data sheets.

Most of the 15ps jitter spec test conditions are specified in the LT1720 data sheet but they have left out a key parameter of jitter measurement; It is important to know the rate of change of the input signal and the rms noise (in the full BW of the comparator input) to calculate rms jitter. Apparently it is assumed that the test signal has an extremely high dV/dt.

That said, the TLV3502 data sheet contains neither a jitter spec nor a noise spec-- which would allow you to make the jitter calculation.

I doubt that the difference in jitter between these two devices is very large.

Looking at all the nice applications circuits in the LTC data sheet, I'd guess that the late Jim Williams had a hand in writing it.