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Appendix B
Troubleshooting
©
National Instruments Corporation
B-3
Analog Output
I am seeing glitches on the output signal. How can I minimize it?
When yo
u
u
se a DAC to generate a waveform, yo
u
may observe glitches on
the o
u
tp
u
t signal. These glitches are normal; when a DAC switches from
one voltage to another, it prod
u
ces glitches d
u
e to released charges. The
largest glitches occ
u
r when the most significant bit of the DAC code
changes. Yo
u
can b
u
ild a lowpass deglitching filter to remove some of these
glitches, depending on the freq
u
ency and nat
u
re of the o
u
tp
u
t signal. Visit
ni.com/
s
upport
for more information abo
u
t minimizing glitches.