Datasheet

  
   
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SLAS060F − JANUARY 1995 − REVISED APRIL 2009
13
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
APPLICATION INFORMATION
staircase window comparator (continued)
REF
OUTA
OUTB
OUTC
OUTD
AGND
Window 1
Window 2
Window 3
Window 4
Window 5
Figure 11. Adjacent Window Structure
The circuit can easily be adapted as shown in Figure 12 to allow for overlapping of windows. When the three
outputs from this circuit are decoded, five different nonoverlapping programmable window possibilities can
again be defined (see Figure 13).
_
+
_
+
10 kΩ
5 V
_
+
_
+
10 kΩ
5 V
_
+
_
+
10 kΩ
5 V
2
1
20
19
REF
AGND
OUTA
OUTB
OUTC
OUTD
TLC7226
Window 1
Window 2
Window 3
V
test
From DUT
5
4
Reference Voltage
Figure 12. Overlapping Window Circuit