Noise Characteristics; Slew Rate; Total Harmonic Distortion - Stanford Research Systems SIM983 Operation And Service Manual

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Figure 4.5: Response of the SIM983 to a 20 V
peak-peak step, G

4.2.3 Slew rate

4.2.4 Total harmonic distortion

4.3 Noise Characteristics

1 00 V
0 000 V.
ofs
Slew rate information is contained within the large-input, large-
output step response (Figure 4.5).
rises from 5 4 V to 5 2 V in 120 ns. The slew rate
Figure 4.7 shows a distortion measurement made on the SR785
FFT Spectrum Analyzer.
Figure 4.8 shows noise plots of the SIM983 up to f
sured with an SR785. Note the quite weak dependence of the input-
referenced noise on the gain for G
dependence of the output voltage of the SIM983. The 0.17 Hz single-
pole high-pass, and 10 Hz eighth-order low-pass filtering was pro-
vided by the SIM965 Analog Filter.
2
The small-input, large-output step response of Figure 4.4 is limited by
the 1.15 MHz bandwidth at G
TDS 3034 28 Apr 2006 11:53:39
Figure 4.6: Response of the SIM983 to a 20 V
peak-peak step, G
2
After an initial delay, the output
5 2 ( 5 4)
SR 88 V
9
120 10
1 Figure 4.9 shows the time
19 99 so no slew-rate limitation is evident.
SIM983 Scaling Amplifier
Performance Verification
0 10 V
0 000 V.
ofs
s
100 kHz, mea-