TLC7226C_15 Datasheet, PDF (13/24 Pages) Texas Instruments – QUADRUPLE 8-BIT DIGITAL-TO-ANALOG CONVERTERS

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TLC7226C, TLC7226I, TLC7226M
QUADRUPLE 8ĆBIT DIGITALĆTOĆANALOG CONVERTERS
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SLAS060F − JANUARY 1995 − REVISED APRIL 2009
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).
Reference Voltage
Vtest
From DUT
+
_
4
REF
+
2
OUTA
_
5V
10 kΩ
Window 1
5V
OUTB ¹
TLC7226
20
OUTC
10 kΩ
+
_
Window 2
+
_
5V
19
OUTD
AGND
5
10 kΩ
+
_
Window 3
+
_
Figure 12. Overlapping Window Circuit
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