Programming instructions

© National Instruments Corporation 20-1 DAQ Hardware Overview Guide
20
DSA Devices
This chapter contains overview information on the DSA PCI-4451,
PCI-4452, PCI-4453, PCI-4454, NI 4551, and NI 4552 devices.
PCI-445 X and NI 455 X Devices
The 445X and 455X devices feature simultaneously sampled input channels
using oversampling delta-sigma modulating ADCs. The PCI-4451,
PCI-4453, and NI 4551 also feature simultaneously generated output
channels using delta-sigma DACs. The hardware features on these devices
are summarized in Table 20-1.
Table 20-1.
PCI-445
X and NI 455 X Hardware Features
Characteristic PCI-4451/4453 PCI-4452/4454 NI 4551 NI 4552
Number of
analog inputs
2 4 2 4
Number of
analog outputs
2 0 2 0
Counter/Timer
Chip
DAQ-STC DAQ-STC DAQ-TIO DAQ-TIO
Number of
counters
2 2 2 2
Digital I/O 1 port with 8 lines 1 port with 8 lines 4 ports with
8 lines each
4 ports with
8 lines each