Datasheet

EVAL-AD7294
Rev. 0 | Page 14 of 24
r
roportion to the R
SENSE
on the board. For example, if an R
SENSE
of 1.1 Ω is required with a 10 mΩ R
SENSE
on the board, divide
the y-axis result by 110 or divide the y-axis scale by 20.
ger window analyzes the alert register to check
en
the
specified limits. The software changes the marker from the color
gray to the color red to convey an alert (see Figure 23). Due to
timing constraints inherent in the software and Windows, an
alert can be checked every 100 ms to 2000 ms. The period can
be controlled using the scroll bar at the bottom of the window.
The entire contents of the alert register can be cleared by writing
all 1s to the alert status register.
The current sense tabs (ISENSE1 and ISENSE2) in the Read
Channel window offer two additional advantages: you can ente
a desired R
SENSE
value—from 10 mΩ up to 999 mΩ—to be used
on the evaluation board (see Figure 22), or, if a larger R
SENSE
resistor is required, you can scale the y-axis results in
ALERT MANAGER WINDOW
The Alert Mana
p
for any alert events. An alert is signaled on a specific channel wh
the input analog signal becomes greater than or less than
07922-022
Figure 22. ISENSE1 Tab of the Read Channel Window
07922-023
Figure 23. Alert Manager Window