AMS431L
TYPICAL PERFORMANCE CHARACTERISTICS
(Continued)
Small Signal Gain and Phase Shift
vs. Frequency
80
SMALL SIGNAL GAIN (dB)
70
60
50
40
30
20
10
0
-10
-20
100
1k
10k
100k
FREQUENCY (Hz)
1000k
-180
-225
-315
-360
PHASE SHIFT (deg)
-270
10µF
Small Signal Gain and Phase Shift
Test Circuit
OUT
I
Z
15k
232
+
8.25k
-
GND
Stability Boundary Condition
3.5
T
A
=25° C
Stability Circuit
CATHODE CURRENT (mA)
3.0
2.5
2.0
1.5
1.0
0.5
0.0
0.001
V
Z
= 2V
V
Z
= V
REF
Stable
Stable
+
-
I
Z
R1
C
L
R2
0.01
0.1
1
LOAD CAPACITANCE (
µF)
10
5
Advanced Monolithic Systems http://www.ams-semitech.com