Philips Semiconductors
Product specification
Adjustable precision shunt regulators
TL431C, TL431AC, TL431I,
TL431AI, LM431AC
100
I
K
= 10mA
T
amb
= 25°C
1kΩ
|Z
KA
| – REFERENCE IMPEDANCE –
Ω
OUTPUT
10
I
K
50Ω
GND
1
Test Circuit for Reference Impedance
0.1
1K
10K
100K
f – FREQUENCY – Hz
1M
10M
SL01175
Figure 16. Reference Impedance vs. Frequency
70
I
K
= 10mA
T
amb
= 25°C
60
Av – VOLTAGE AMPLIFICATION – dB
50
15kΩ
40
9µF
OUTPUT
I
K
230Ω
30
8.25kΩ
GND
20
Test Circuit for Voltage Amplification
10
0
1K
10K
100K
FREQUENCY IN Hz
1M
10M
SL01181
Figure 17. Small-Signal Voltage Amplification vs. Frequency
1997 Feb 25
9