TYPICAL APPLICATIONS
ZERO CROSSING DETECTOR
DOUBLE DUAL LIMIT WINDOW COMPARATOR
ALD2303
+12V
+3V
+12V
+12V
50K
V
OUT
V
IN
VH
2
+
50K
+
-3V
1/2 ALD2303
VH
1
+
+12V
V
IN
+12V
47K
+
+
MULTIPLE RELAY DRIVE
VL
1
+5V
+5V
V
REF
VL
V
+
2
IN
50K
1/2 ALD2303
ALD2303
VL and VH first limit window send warning
1
1
VL and VH second limit window execute system cutoff
2
2
VOLTAGE LEVEL TRANSLATOR
V+ = +10V
50K
V
REF
V
OUT
V
+
IN
1/2 ALD2303
V
= 1.4V for TTL input
+
REF
V
for CMOS input
=
V
REF
2
Output V
swings from rail-to-rail
OUT
ALD2303A/ALD2303
Advanced Linear Devices
5