LIA120
PERFORMANCE DATA*
LIA120
Reference Voltage vs.
Ambient Temperature
I
LED
= 10mA
15
I
LED
- Supply Current (mA)
10
5
0
-5
-10
LIA120
LED Current vs. Cathode Voltage
I
LED
- Supply Current (µA)
-15
-1.0
-0.5
0.0
0.5
1.0
1.5
150
120
90
60
30
0
-30
-60
-90
-120
-150
-1.0
LIA120
LED Current vs. Cathode Voltage
1.30
V
REF
- Reference Voltage (V)
-0.5
0.0
0.5
1.0
1.5
1.37
1.24
1.21
1.18
-40
-20
0
20
40
60
80
V
COMP
- Cathode Voltage (V)
V
COMP
- Cathode Voltage (V)
55ºC
25ºC
I
REF
- Reference Current (µA)
I
(OFF)
- Off Current (nA)
300
250
200
150
100
50
2.0
1.5
1.0
0.5
0
I
LED
- Forward Current (mA)
350
LIA120
Reference Current vs.
Ambient Temperature
I
LED
= 10mA
R
1
= 10 kΩ
2.5
LIA120
Off Current vs. Ambient Temperature
V
IN
= 10V
V
FB
= 0
20
15
10
5
LIA120
LED Forward Current vs. Forward Voltage
85ºC
-5ºC
-40
-20
0
20
40
60
80
100
-40
-20
0
20
40
60
80
100
0
1.0
1.1
1.2
1.3
1.4
1.5
V
F
- Forward-Voltage (V)
50
I
KAO
- Dark Current (nA)
40
30
20
10
0
-10
(I
KA
/I
F
) - Current Transfer Ratio (%)
LIA120
Dark Current vs. Temperature
V
KA
= 10V
I
K
- Cathode Current (µA)
1400
1200
1000
800
600
400
200
0
LIA120
Cathode Current vs. Ambient Temperature
V
KA
= 5V
I
LED
= 20mA
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
LIA120
Current Transfer Ratio vs LED Current
V
KA
= 5V
I
LED
= 10mA
I
LED
= 5mA
I
LED
= 1mA
-40
-20
0
20
40
60
80
100
-40
-20
0
20
40
60
80
100
0
10
20
30
40
50
I
LED
- Forward Current (mA)
500
450
400
350
300
250
200
150
100
50
0
LIA120
Cathode Current vs. Photodiode Voltage
50
I
LED
= 20mA
Frequency (kHz)
40
30
20
10
0
LIA120
Bandwidth vs. Temperature for
High Frequency Applications
Voltage Gain, A(V
o
/V
in
) dB
60
LIA120
Voltage Gain vs. Frequency
I
K
- Cathode Current (µA)
40
I
LED
= 10mA
I
LED
= 5mA
I
LED
= 1mA
0
1
2
3
4
5
6
7
8
9
10
20
0
10
20
30
40
50
60
70
80
90
0
10
100
Frenquency kHz
1000
V
KA
(V)
*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.
4
www.clare.com
Rev. 2.0
CLARE [ CLARE, INC. ]
