TYPICAL PERFORMANCE CHARACTERISTICS (cont'd)
TOTAL SUPPLY CURRENT vs.
TOTAL SUPPLY VOLTAGE
V+
200
SUPPLY CURRENT vs. TEMPERATURE
SUPPLY CURRENT (
µA)
SUPPLY CURRENT (µA)
160
140
120
100
80
2.0
-
+
T
A
= 25°C
R
L
=
∞
180
160
140
120
100
80
60
V
S
=
±2.5V
No Load
All comparators
4.0
6.0
8.0
10.0
12.0
-55
-25
0
25
50
75
100
125
SUPPLY VOLTAGE (V)
TEMPERATURE (°C)
INPUT OFFSET VOLTAGE vs.
TEMPERATURE
3.0
OFFSET VOLTAGE (mV)
2.8
2.6
2.4
2.2
2.0
1.8
-55
-25
0
25
50
75
100
125
TEMPERATURE (°C)
V
CM
= 0V
V
S
=
±
2.5V
TYPICAL APPLICATIONS
DUAL LIMIT WINDOW COMPARATOR
V+
1/2 ALD2301
V
REF(HIGH)
V+
DUAL LIMIT PHOTO-DETECTOR
MONITOR
V
External
VOLTAGE COMPARATOR WITH
COMPLEMENTARY OUTPUTS
V+
BUZZER
1/2 ALD2301
+
-
R
LOAD
+
LED
Q
1/2 ALD2301
-
V
REF
V
LIMIT2
+
V
OUT
-
V
IN
V
REF(LOW)
+
LIGHT
V
LIMIT 1
V
IN
+
-
Q
1/2 ALD2301
-
1/2 ALD2301
PHOTO-
DETECTOR
+
-
1/2 ALD2301
MINIMUM R
LOAD
= 1.5KΩ
OUTPUT HIGH FOR V
IN
< V
REF(HIGH)
AND V
IN
> V
REF(LOW)
LED turns on as photo-detector voltage reaches
VLIMIT1. Both LED and horn turns on as
photo-detector voltage reaches VLIMIT2.
VEXTERNAL = +12V V+ = +5V.
ALD2301A/ALD2301B/ALD2301C/ALD2301
Advanced Linear Devices
4 of 7
ALD [ ADVANCED LINEAR DEVICES ]
