TYPICAL PERFORMANCE CHARACTERISTICS
OUTPUT SINK CURRENT AS A
FUNCTION OF OUTPUT VOLTAGE
100
OUTPUT SOURCE CURRENT (mA)
OUTPUT SOURCE CURRENT AS A
FUNCTION OF OUTPUT VOLTAGE
-0.1
-0.2
-0.5
-1.0
-2.0
-5.0
-10
-20
-50
-100
V
+
= 2V
V
+
= 5V
V
+
= 12V
OUTPUT SINK CURRENT (mA)
50
20
10
5.0
2.0
1.0
0.5
0.2
0.1
0.01
TA = 25°C
V
+
= 12V
V
+
= 5V
V
+
= 2V
0.02
0.05
0.1
0.2
0.5
1.0
-1.0
-0.5
-0.2
-0.1
-0.05
-0.02
-0.01
OUTPUT VOLTAGE (V)
OUTPUT VOLTAGE (V)
(REFERENCED TO V
+
)
TYPICAL APPLICATIONS ( EACH TIMER )
ASTABLE MODE OPERATION
50% DUTY CYCLE
V
+
ASTABLE MODE OPERATION
(FREE RUNNING OSCILLATOR)
V
+
1
2
R
3
V
+
4
8
0.1µF
7
6
C
5
V
+
1
2
3
4
8
R
A
7
R
B
6
C
5
0.1µF
Frequency f = 1/ (1.4 R
C
)
Frequency f = 1.46 / (R
A
+ 2R
B
)C
Duty Cycle DC = R
B
/ (R
A
+ 2R
B
)
MONOSTABLE MODE OPERATION (ONE SHOT PULSE)
Pulse Delay t
d
= 1.1 R
C
V
+
1
TRIGGER
INPUT
DELAYED PULSE
OUTPUT
RESET
2
3
4
8
R
7
6
C
5
0.1µF
ALD1502/ALD2502
Advanced Linear Devices
4
ALD [ ADVANCED LINEAR DEVICES ]
