Folks,
After John Larkin sent me SMS7621 Schottky RF diodes I played around with them in the lab. While they perform nicely at room temperature everything goes to pots at a slightly elevated temperature. At ballpark
50C the leakage current is already painfully high for use as a sampler diode.Question: Is there a fast RF diode or sampling diode in a reasonable cost range (low single-digit Dollars) with more barrier height? In samplers one doesn't care so much about Vf but unfortunately many such diodes are marketed as RF detectors where Vf does matter. I guess that's why they leak so much when the temps go up.