3
1�3 Specifications
Analog Input
Specification
Value
Number of Channels
4 single-ended channels
Input Connector
BNC
Input Impedance
50 Ω or 1 MΩ, software selectable, default 50Ω
Input Coupling
DC
Input Range
(±0.2V, ±1V) or (±1V, ±5V), software selectable
Overvoltage Protection
±5V for (±0.2V, ±1V)
±15V for (±1V, ±5V)
ADC Resolution
16-Bit, 1 in 65536
Crosstalk
≤-80 dB at 1MHz, for all input ranges at 50 Ω input impedance
Table 1-1: Analog Input Specifications
Offset Error
Model Name
PXI-69816D
PXI-69826D
PXI-69846D
PXI-69846W
PCI-69846D
PXI-69846H,
PCI-69816H
PCI-69826H
PCI-69846H
Offset Error
±0.2 mV
±0.3 mV
Gain Error
Input Range
±0.2 V
±1 V
±1 V
±5 V
Gain Error
±0.1%
±0.05%
±0.1%
±0.06%
Note: When calculating offset error and gain error, sampled data are averaged with 65536
points and AI channel configured with 50 Ω input impedance.
Table 1-2: Offset and Gain Error
