AP431/AP431A
ADJUSTABLE PRECISION SHUNT REGULATOR
Typical Performance Characteristics ( Continued )
Small-Signal Voltage Amplification vs Frequency
60
50
40
30
20
10
0
IKA=10mA
TA=25oC
Output
232Ω
IKA
15KΩ
9µF
-
+
-
8.25KΩ
GND
Test Circuit for Voltage Amplification
10K
1K
100K
1M
10M
f-Frequency-Hz
Reference Impedance vs Frequency
100
I
KA=10mA
o
T
A=25 C
1KΩ
Output
I
KA
10
1
50Ω
-
+
GND
Test Circuit for Reference Impedance
0.1
1K
10K
100K
1M
10M
f-Frequency-Hz
AP431/AP431A Rev. 5
8 of 14
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MARCH 2007
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