User manual

Interchannel delay
In general, settling time defines the time needed for an analog signal to reach a stable state after a step
change occured. With CEBO-LC such step changes occur, whenever a input multiplexer switches from one
channel to another. To reduce impacts on measurement accuracy when switching between different analog
input channels, a minimum dead time needs to be waited between subsequent measurements. This time is
called the interchannel delay. Increasing interchannel delay time might enhance measurement accuracy, but
will on the other hand reduce achievable maximum frame-rate. There always is a tradeoff between speed and
accuracy.
With the default interchannel delay times CEBO-LC meets specifications at all gains for source impedances
up to 1 k at the least. Normally, there is no need to change interchannel delays manually. However, it is
possible if desired. For example, if speed is more important than actual accuracy. Interchannel delay is one of
several parameters that can be set for each of the various analog inputs, independently. See corresponding
programming references to get details on how to set parameters for analog inputs.
Factory preset interchannel delay times
Gain Interchannel delay time [µs]
1 16
10 28
100 150
1000 500
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