Z
Zhong Pan
Hello all,
Sorry to bother you guys again but I really need some quick help on this
issue.
I am designing a PCB circuit that gives specific current values to a
device. Unfortunately after the D/A converter I MUST use a voltage
amplifier for some reason, so I lose the information how much current
I am sending.
Previously I would just put a 1-ohm sampling resistor in series in
the middle of the trace and measure its voltage. But I am dealing
with high speed this time - although the frequency on the trace
is below 10MHz, I need to keep a very sharp rising edge that may
require GHz response.
My question: Will the action of putting a series resistor significantly
influence the high-frequency response? If yes, what do people do
in this situation?
Sorry to bother you guys again but I really need some quick help on this
issue.
I am designing a PCB circuit that gives specific current values to a
device. Unfortunately after the D/A converter I MUST use a voltage
amplifier for some reason, so I lose the information how much current
I am sending.
Previously I would just put a 1-ohm sampling resistor in series in
the middle of the trace and measure its voltage. But I am dealing
with high speed this time - although the frequency on the trace
is below 10MHz, I need to keep a very sharp rising edge that may
require GHz response.
My question: Will the action of putting a series resistor significantly
influence the high-frequency response? If yes, what do people do
in this situation?
