Acquisition characteristics accuracy, Common-mode characteristics – National Instruments NI PCI-5911 User Manual
Page 30
Appendix A
Specifications
© National Instruments Corporation
A-3
Vertical Sensitivity (Input Ranges)
Acquisition Characteristics
Accuracy
DC gain accuracy ................................... ±0.05% signal ±0.0001% fs
for all input ranges at 1 MS/s
in flexible resolution mode
DC offset accuracy................................. ±0.1 mV ±0.01% fs
for all input ranges at 1 MS/s
in flexible resolution mode
Input coupling ........................................ DC and AC, software selectable
AC coupling cut-off frequency
(–3 dB) ................................................... 2.5 Hz ±0.5 Hz
Input impedance ..................................... 1 M
Ω ±2%
Max measurable input voltage ............... ±10 V (DC + peak AC)
Input protection ...................................... ±42 VDC (DC + peak AC)
Input bias current ................................... ±1 nA, typical at 25 °C
Common-Mode Characteristics
Impedance to chassis ground ................. 10 k
Ω
Common-mode rejection ratio ............... CMRR > –70 dB, (F
in
< 1 kHz)
Input Range
Noise Referred to Input
±10 V
–174 dBfs/
±5 V
–168 dBfs/
±2 V
–160 dBfs/
±1 V
–154 dBfs/
±0.5 V
–148 dBfs/
±0.2 V
–140 dBfs/
±0.1 V
–128 dBfs/
Hz
Hz
Hz
Hz
Hz
Hz
Hz