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