4
Introduction
Analog Input (AI)
X
Number of channels: 4 single-ended for DAQ/PXI-2502, 8
single-ended for DAQ/PXI-2501
X
AD converter: LTC1416
X
Max sampling rate: 400KS/s
X
Resolution: 14 bits
X
FIFO buffer size: 2K samples
X
Input range: Bipolar:
±
10V, unipolar: 0~10V
X
Over voltage protection: Continuous
±
35V maximum
X
Input impedance: 1G
Ω
| 6pF
X
Trigger mode: Pre-trigger, post-trigger, middle-trigger, and
delay trigger
X
Data transfers: Programmed I/O, and bus-mastering DMA
with scat-ter/gather
X
Input coupling: DC
X
Offset error:
Z
Before calibration:
±
40mV max
Z
After calibration:
±
1mV max
X
Gain error:
Z
Before calibration:
±
0.4 % of output max
Z
After calibration:
±
1mV of output max
General Purpose Digital I/O (G.P. DIO)
X
Number of channels: 24 programmable Input/Output
X
Compatibility: TTL/CMOS
X
Input voltage:
Z
Logic Low: VIL=0.8V max.; IIL=0.2mA max.
Z
High: VIH=2.0V max.; IIH=0.02mA max
X
Output voltage:
Z
Low: VOL=0.5 V max.; IOL=8mA max.
Z
High: VOH=2.7V min; IOH=400
μ
A