LIA120
PERFORMANCE DATA*
LIA120
LIA120
LED Current vs. Cathode Voltage
LIA120
Reference Voltage vs.
Ambient Temperature
LED Current vs. Cathode Voltage
15
10
5
150
120
90
1.30
1.37
1.24
1.21
1.18
ILED = 10mA
60
30
0
0
-30
-60
-90
-120
-150
-5
-10
-15
-1.0
-0.5
0.0
0.5
1.0
1.5
-1.0
-0.5
0.0
0.5
1.0
1.5
-40
-20
0
20
40
60
80
VCOMP - Cathode Voltage (V)
VCOMP - Cathode Voltage (V)
LIA120
LIA120
Reference Current vs.
Ambient Temperature
LIA120
LED Forward Current vs. Forward Voltage
Off Current vs. Ambient Temperature
20
2.5
2.0
1.5
1.0
0.5
0
350
300
250
200
150
100
50
-5ºC
85ºC
ILED = 10mA
R1 = 10 kΩ
VIN = 10V
VFB = 0
15
10
5
0
1.0
1.1
1.2
1.3
1.4
1.5
-40
-20
0
20
40
60
80
100
-40
-20
0
20
40
60
80
100
VF - Forward-Voltage (V)
LIA120
Dark Current vs. Temperature
LIA120
LIA120
Cathode Current vs. Ambient Temperature
Current Transfer Ratio vs LED Current
50
40
30
20
10
0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
1400
VKA = 10V
VKA = 5V
VKA = 5V
1200
1000
800
600
400
200
0
ILED = 20mA
ILED = 10mA
ILED = 5mA
ILED = 1mA
-10
-40
-20
0
20
40
60
80
100
0
10
20
30
40
50
-40
-20
0
20
40
60
80
100
ILED - Forward Current (mA)
LIA120
LIA120
Cathode Current vs. Photodiode Voltage
Bandwidth vs. Temperature for
High Frequency Applications
LIA120
Voltage Gain vs. Frequency
500
60
40
20
0
50
450
400
350
300
250
200
150
100
50
ILED = 20mA
40
30
20
10
0
ILED = 10mA
ILED = 5mA
ILED = 1mA
0
0
1
2
3
4
5
6
7
8
9
10
0
10 20 30 40 50 60 70 80 90
10
100
1000
VKA (V)
Frenquency kHz
*The Performance data shown in the graphs above is typical of device performance. For guaranteed parameters not indicated in the written specifications, please contact our
application department.
Rev. 2.0
4
IXYS [ IXYS CORPORATION ]
