Parametrics; Noise Performance - Measurement Computing PCI-DAS6031 User Manual

PCI-DAS6031 & PCI-DAS6033 User's Guide

Parametrics

Max working voltage
(signal + common-mode)
CMRR @ 60 Hz
Small signal bandwidth, all ranges
Input coupling
Input impedance
Input bias current
Input offset current
Absolute maximum input voltage
Crosstalk

Noise performance

Table 8 summarizes the noise performance for the PCI-DAS6031 and PCI-DAS6033. Noise distribution is
determined by gathering 50 k samples with inputs tied to ground at the user connector. Samples are gathered
100 kS/s sampling rate. The specification applies to both single-ended and differential modes of operation.
Range
±10 V
±5 V
±2 V
±1 V
±500 mV
±200 mV
±100 mV
0 to 10 V
0 to 5 V
0 to 2 V
0 to 1 V
0 to 500 mV
0 to 200 mV
0 to 100 mV
Table 7. Parametrics specifications
±11 V
±10 V range and 0 to 10 V: 92 dB
±5 V range and 0 to 5 V:
±2 V range and 0 to 2 V:
±1 V range and 0 to 1 V:
±0.5 V range and 0 to 0.5 V: 105 dB
±0.2 V range and 0 to 0.2 V: 105 dB
±0.1 V range and 0 to 0.1 V: 105 dB
255 kHz
DC
100 GOhm in normal operation.
820 Ohm typ in powered off or overload condition.
±200 pA
±100 pA
±25 V power on, ±15 V power off. Protected inputs:
! CH<63:0> IN
! AISENSE
Adjacent channels: -75 dB
All other channels: -90 dB
Table 8. Analog input noise performance specifications
LSBrms
0.6
0.6
0.6
0.6
0.7
1.1
2.0
0.8
0.8
0.8
0.8
1.1
2.0
3.8
97 dB
101 dB
104 dB
6-4
Specifications
Typical Counts
8
8
8
8
8
11
17
8
8
8
8
11
17
25