Falco Systems WMA-200, Руководство пользователя

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Figure 7. Rms output noise voltage versus capacitive load
Figure 8. Noise without output loading, and with the 1μF Falco Systems capacitive load box
connected, plus typical offset. The noise, as measured with a true rms voltmeter in a 1MHz
bandwidth, is 48
µ
V
rms
with no load, and 18
µ
V
rms
with the 1μF load connected. The
corresponding signal bandwidths of the amplifier are DC – 100kHz and DC – 500Hz. The
noise and offset may appear to be slightly higher than shown here if the amplifier input is not
differentially connected to a low-impedance source.
Figure 9. Sine wave 300V
pp
1kHz
Capacitance (pF)
Rm
s
out
put
v
olta
ge
noi
se
(μ
V)
50
40
30
20
10
10
2
10
3
10
4
10
5
10
6
10
7
Time (ms)
Ou
tp
u
t
vo
lta
ge
(
mV
)
-0.9
-0.8
-0.7
-0.6
-0.5
-0.4
50 40 30 20 10 0
0pF
1uF
Time (ms)
Ou
tp
ut
vo
lta
ge
(V)
-150
-100
-50
0
50
100
150
2.0 1.5 1.0 0.5 0.0