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National Instruments Corporation
A-1
DAQMeter DAQCard-4050 User Manual
Appendix
A
Specifications
This appendix lists the specifications of the DAQMeter
DAQCard-4050. These specifications are typical at 25° C unless
otherwise specified. The operating temperature range is 0° to 55° C.
DC Voltage
Accuracy
Noise Rejection
NMRR (10 Hz filter setting, 50/60 Hz
power line frequency ±5%) .................80 dB
DC CMRR ..........................................>130 dB
AC CMRR ..........................................90 dB, 60 Hz
Input Characteristics
Input bias current ................................100 pA, 1 nA max
Range
Accuracy*
±(% of r
% of range)
Temperature
Coefficient
±(ppm of r
ppm of range)/°C
Overrange
250.000 V
0.006% + 0.007%
9 ppm + 5 ppm
250.000 V
25.0000 V
0.006% + 0.035%
9 ppm + 30 ppm
27.0000 V
2.00000 V
0.004% + 0.01%
5 ppm + 5 ppm
2.20000 V
200.000 mV
0.005% + 0.025%
5 ppm + 20 ppm
220.000 mV
20.000 mV
0.005% + 0.1%
5 ppm + 175 ppm
22.0000 mV
* Percent of range includes the effects of nonlinearity, noise, and offset errors.