
Displays and display technology
Figure 8.6
Interpolating DACs (a); waveform synthesis (b). (Both reproduced
courtesy of
Electronic Engineering.)
performance of a realtime analog oscilloscope. In the case of
risetime measurements, the risetime of an analog scope, Tr in ns,
is given in terms of its bandwidth BW in MHz by Tr -- 0.35/BW,
approximately, when an edge with a risetime very much shorter
than this is applied. The measured risetime of an actual edge will
be accurate to within 1% if the risetime of the edge is ten times
longer than that of the oscilloscope. If comparable or shorter, the
measured risetime ...