DI-2008 Hardware Manual
Specifications
4
Maximum common mode voltage:
120 Vrms
Minimum common mode rejection (330
unbalance): >110 dB (DC to 60 Hz)
Channel-to-channel crosstalk rejection:
(R
source
≤ 330 Ω; Freq
source
≤ 60 Hz)
> 100 dB
Digital Ports
Number of ports:
7
Type:
MOSFET switch
Configuration:
Programmable as an input or switch
Pull-up value:
4.7 k
Isolation:
None
Input high voltage threshold:
2.4 V minimum
Input low voltage threshold:
0.8 V maximum
Absolute maximum input without damage:
±30 V peak
Count/Rate
Digital port assignment:
Count: Port 2 as input; Rate: Port 3 as input
Internal pull-up value:
4.7 k
Input high voltage threshold:
2.4V
Input low voltage threshold:
0.8V
Terminal count:
65,535
Maximum rate frequency:
50 kHz
Minimum rate frequency:
0.5 Hz
Maximum count frequency:
50 kHz
ADC Characteristics
Voltage measurement resolution:
Range (±)
Resolution
Units
10 mV
0.305
V
25 mV
0.763
50 mV
1.53
100 mV
3.05
250 mV
7.63
500 mV
15.26
1 V
30.5
2.5 V
76.3
5 V
152.6
10 V
305
25 V
763
50 V
1.53
mV
