NI 5922 Calibration Procedure
|
© National Instruments
|
13
9.
Repeat steps 1 through 8 for channel 1, changing the value of the
channelList
parameter
from
"0"
to
"1"
.
Input Bias Current
Complete the following steps to verify input bias current of the NI 5922. You must verify both
channels.
1.
Disconnect all cabling from the BNC inputs of the NI 5922.
2.
Call
niScope_ConfigureChanCharacteristics
(niScope Configure Chan
Characteristics VI) with the following parameters:
•
channelList
:
"0"
•
inputImpedance
:
NISCOPE_VAL_50_OHM
•
maxInputFrequency
:
0
3.
Call
niScope_ConfigureVertical
(niScope Configure Vertical VI) with the
following parameters:
•
channelList
:
"0"
•
range
:
2
•
offset
:
0.0
•
coupling
:
NISCOPE_VAL_DC
•
probeAttenuation
:
1.0
•
enabled
:
NISCOPE_VAL_TRUE
Table 4.
NI 5922 Noise Performance
Iteration
Range (V)
Sample
Rate (S/s)
i
Calibration
Test Limits
Published
Specifications
1
2
50 k
132
0.95
μ
V
1
μ
V
2
2
100 k
66
1.12
μ
V
1.2
μ
V
3
2
1 M
7
4.05
μ
V
4.2
μ
V
4
2
5 M
2
8.5
μ
V
8.7
μ
V
5
2
10 M
1
19.1
μ
V
20
μ
V
6
2
15 M
1
77
μ
V
80
μ
V
7
10
50 k
132
3.23
μ
V
3.4
μ
V
8
10
100 k
66
4.11
μ
V
4.3
μ
V
9
10
1 M
7
12.7
μ
V
13
μ
V
10
10
5 M
2
29.5
μ
V
31
μ
V
11
10
10 M
1
88
μ
V
92
μ
V
12
10
15 M
1
384
μ
V
401
μ
V
