Q
I have some fast logic edges on some of the digital circuitry I plan to connect
to the
MicroConverter. Will these signals impact the analog performance of the chip?
A
Signals with rise and fall times of less than 5ns or so, when applied directly
to a MicroConverter’s
digital input pins, can potentially feed through and degrade analog
performance. A simple solution
to this problem is found in the form of a series resistor. A series resistor of
around 200Ω will slow
an edge sufficiently that it won’t affect the MicroConverter’s analog
performance.