AP431/AP431A
Document number: DS31002 Rev. 21 - 2
6 of 17
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June 2013
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AP431/AP431A
Typical Performance Characteristics (cont.)
0.5 1.5 2.5-0.5-1
CATHODE VOLTAGE (V)
Cathode Current vs. Cathode Voltage
CATH
DE CURRENT(mA)
100
0
-100
V = V
T = 25C
KA REF
A
0.5 1 1.5 2 2.50-0.5-1
CATHODE VOLTAGE (V)
Cathode Current ( A) vs. Cathode Voltage
CATHODE CURRENT( A)
600
400
200
0
-200
I
KA(MIN)
V = V
T = 25C
KA REF
A
06080-20-40
FREE-AIR TEMPERATURE (C)
Reference Voltage vs. Free-Air Temperature
20 40
HOD
U
N
(m
)
250
2490
2480
2485
2495
R1 = 10k
I = 10mA
KA
25 50 75 100 1250-25-50
FREE-AIR TEMPERATURE (V)
Reverence Input Current vs. Free Temperature
EFE
ENCE INPUT CU
ENT( A)
2
1.8
1.4
1.2
1
1.6
10 25 3050
CATHODE VOLTAGE (V)
Change in Reference Voltage vs. Cathode Voltage
15 20
H
N
E in
E
E
EN
E V
LT
E (mV)
0
-6
-12
-10
-2
-4
-8
I = 10mA
T = 25C
KA
A
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