AIC431/TL431A/TL431
n
TYPICAL
1.20
PERFORMANCE CHARACTERISTICS
(Continued)
0.28
Reference Input Current vs Temperature
Reference Input Current (µA)
Dynamic Impedance (Ω)
1.15
1.10
1.05
1.00
0.95
0.90
0.85
0.80
0.75
0.70
-40
Dynamic Impedance vs Temperature
R1=10K
Ω
R2=∞
I
Z
=10mA
0.24
V
Z
=V
REF
I
Z
=1mA to100mA
F <1KHz
0.20
0.16
0.12
0.08
0.04
0.00
-40
-20
0
20
40
60
80
100
120
-20
0
20
40
60
80
100
120
Temperature (
°
C)
Temperature (
°
C)
Change in Reference Voltage vs Cathode Voltage
Change in Reference Voltage (mV)
0
2.5
Off-State Cathode Current vs Temperature
Off-State Cathode Current (µA)
-1
2.0
I
Z
=10mA
T
A
=25°C
V
REF
=0V
1.5
-2
V
Z
=30V
-3
1.0
-4
-5
0.5
-6
0
5
10
15
20
25
30
35
40
0.0
-40
-20
0
20
40
60
80
100
120
Cathode Voltage (V)
Temperature (
°
C)
Small Signal Voltage Amplification vs Frequency
Small Signal Voltage Amplification
80
70
60
50
40
30
20
10
0
-10
10
I
Z
=10mA
T
A
=25
°
C
47
µ
F
R1
10K
R
250
AIC431
Output
Av
+
V
IN
C
IN
V1
100
1k
10k
100k
1M
10M
Frequency (Hz)
Test Circuit For Frequency Response
6
AIC [ ANALOG INTERGRATIONS CORPORATION ]
