©
National Instruments Corp.
27
NI 9219E Operating Instructions and Specifications
Input bias current .............................. <1 nA
INL.................................................... ±15 ppm
CMRR (
f
in
=
60 Hz) .......................... >100 dB
4-Wire and 2-Wire Resistance,
1 k
Ω
7.1
1.8
1.2
0.7
4-Wire and 3-Wire RTD,
Pt 1000
7.6
1.7
1.1
0.4
4-Wire and 3-Wire RTD, Pt 100
10.8
1.9
1.9
0.9
Quarter-Bridge, 350
Ω
5.4
1.0
1.0
0.7
Quarter-Bridge, 120
Ω
5.4
1.0
1.0
0.7
Half-Bridge,
±
500 mV/V
3.8
0.5
0.5
0.2
Full-Bridge,
±
62.5 mV/V
5.4
1.0
1.0
0.8
Full-Bridge,
±
7.8 mV/V
30
4.7
4.7
2.3
Mode, Range
Conversion Time
High
speed
Best
60 Hz
rejection
Best
50 Hz
rejection
High
reso-
lution
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