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I am looking for from1.8V LVCMOS to 3.3LVCMOS with the lowest possible delays ( <500psec) Please suggest .
The fastest translators are in the AXC family. For 1.8 V → 3.3 V, their propagation delay is somewhere between 0.5 ns and 4 ns.
For which application do you need such a small delay?
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In reply to Clemens Ladisch:
It is for PTP clock conversion application.
In reply to Piyush Jaju:
A passive switch like the LSF0101 can have very low propagation delays if the pull-up resistor has a sufficiently low value (and if the capacitive load is not too high). With RL = 300 Ω, typical delay is 0.4 ns, but the signal source must be able to sink 11 mA.
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