TYPICAL PERFORMANCE CHARACTERISTICS
TOTAL SUPPLY CURRENT vs.
TOTAL SUPPLY VOLTAGE
V+
160
-
+
140
TA = 25°C
RL = ∞
120
100
80
2.0
4.0
6.0
8.0
10.0
12.0
SUPPLY VOLTAGE (V)
SUPPLY CURRENT vs. TEMPERATURE
200
180
160
140
120
100
80
60
-55 -25
VS = ±2.5V
No Load
All comparators
0
25 50 75 100 125
TEMPERATURE (°C)
INPUT OFFSET VOLTAGE vs.
TEMPERATURE
3.0
2.8
VCM = 0V
2.6
VS = ± 2.5V
2.4
2.2
2.0
1.8
-55 -25
0
25 50 75 100 125
TEMPERATURE (°C)
TYPICAL APPLICATIONS
DUAL LIMIT WINDOW COMPARATOR
VREF(HIGH)
1/2 ALD2301
+
V+
RLOAD
DUAL LIMIT PHOTO-DETECTOR
MONITOR
VExternal
V+
BUZZER
1/2 ALD2301
-
LED
VLIMIT2
+
VOUT
-
+
VIN
-
VREF(LOW)
1/2 ALD2301
LIGHT
VLIMIT 1
+
PHOTO-
DETECTOR
-
MINIMUM RLOAD = 1.5KΩ
1/2 ALD2301
OUTPUT HIGH FOR VIN < VREF(HIGH)
AND VIN > VREF(LOW)
LED turns on as photo-detector voltage
reaches V LIMIT1. Both LED and horn turns on
as photo-detector voltage reaches VLIMIT2.
V EXTERNAL = +12V V+ = +5V.
VOLTAGE COMPARATOR WITH
COMPLEMENTARY OUTPUTS
VREF
VIN
V+
+
Q
-
1/2 ALD2301
+
Q
-
1/2 ALD2301
7-4
Advanced Linear Devices
ALD2301A/ALD2301B
ALD2301/ALD2301C