Figure 10. Bandwidth of the WMA-IB-LN when used with two WMA-200 high voltage
amplifiers in bridge mode. Shown is the measured bandwidth of a 600Vpp differential sine
wave signal between the two WMA-200 high voltage amplifier outputs
Figure 11. Measured differential output voltage noise between two WMA-200 high voltage
amplifier outputs, with short-circuited WMA-IB-LN inputs. The effective differential voltage
noise between the two WMA-200 high voltage amplifier outputs is 130
µ
Vrms measured in a
bandwidth of DC - 1MHz bandwidth, and 105
µ
Vrms in a bandwidth of DC - 100kHz.
600
500
400
300
200
100
0
10
2
10
3
10
4
10
5
10
6
10
7
Frequency (Hz)
D
iff
er
en
1al
o
utp
ut
vo
ltag
e
(V
pp
)
400
200
0
-200
-400
50
40
30
20
10
0
Time (ms)
D
iff
er
en
-al
o
utp
ut
vo
ltag
e
(μ
V)
