AS431
Document number: DS36599 Rev. 3 - 2
8 of 19
www.diodes.com
October 2013
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S431
Product Line o
Diodes Incorporated
Performance Characteristics
(Cont.)
Small Signal Voltage Gain vs. Frequency
Reference Impedance vs. Frequency
Stability Boundary Conditions vs. Load Capacitance
1k 10k 100k 1M
-10
0
10
20
30
40
50
60
70
Voltage Gain (dB)
Small Signal Frequency (Hz)
T
A
=25
0
C
I
KA
=10mA
1K 10K 100K 1,000K
0.1
1
10
Reference Impedance ()
Frequency (Hz)
I
KA
=10mA
T
A
=25
o
C
0
10
20
30
40
50
60
70
80
90
100
10
1
0.10.010.001
Stable
Stable
Cathode Current (mA)
Load Capacitance (F)
T
A
=25
o
C
V
KA
=V
REF
V
KA
= 5V:No oscillation
V
KA
=10V:No oscillation
V
KA
=15V:No oscillation
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