National Instruments NI PCI-5911 Acquisition Characteristics Accuracy, Common-Mode Characteristics

Appendix A Specifications
© National Instruments Corporation A-3 NI PCI-5911 User Manual
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 MΩ ±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 kΩ
Common-mode rejection ratio............... CMRR > –70 dB, (Fin < 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