Alldaq ADQ-250 cPCI, Manual

Page: 27 / 38

Appendix 27
Manual ADQ-250 series Rev. 0.9 Appendix
Accurracy of the analog inputs ADQ-258
Conditions: 100 values sampled with 100 kHz and subsequent average calculation
Measuring range Data point Expanded measurement uncertainty
1)
(coverage factor k = 2)
±10.24 V range
(1 LSB = 0.0781 mV)
10 V ±0.353 mV (0.004%)
5 V ±0.271 mV (0.005%)
1 V ±0.184 mV (0.018%)
±102.4 V range
(1 LSB = 0.781 mV)
100 V tbd.
50 V tbd.
10 V tbd.
1) The expanded measurement uncertainty with the coverage factor k = 2 corresponds with a confidence interval of 95%.
With it the demanding requirements of industrial measurement are met.
Trigger inputs isolated for analog inputs
Element Condition Specification
Number via HDMI 2 externe Trigger-Eingänge isoliert
Level max.
-0,5..+5.5 V (different input level on request)
Input level U
IH
VCC = 5V min. 2.2 V
U
IL
VCC = 5V max. 0.8 V
Input current I
F
typ. ±1.6 mA
Trigger clock Rectangular symme-
trical max. sample rate of the board
Trigger edges
rising, falling, any
Delay time max. 30.30 ns
Isolation voltage Signal to PC ground max. 500 V
Ground reference GND_TRIG
Bi-directional digital I/Os (TTL)
Conditions: T
A
= 25°C
Element Condition Specification
Number via HDMI 1 x 8 bit port bi-directional
Type TTL (bi-directional, direction configurable per port)
Input level U
IH
VCC = 5V min. 2.0 V
U
IL
VCC = 5V max. 0.8 V
Input current I
I
typ. ±1 µA
Output level U
OH
I
O
= -24 mA min. 2.4 V
U
OL
I
O
= 24 mA max. 0.5 V
Output current I
O
each Pin ±24 mA