Keithley KUSB-3100, Руководство пользователя

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Appendix A
94
Table 6 lists the specifications for the C/T subsystem on the
KUSB-3100 module.
Table 6: C/T Subsystem Specifications
Feature KUSB-3100 Specifications
Number of counter/timers 1
Counter/timer modes Event counting,
frequency measurement,
edge-to-edge measurement,
rate generation
Resolution 32-bit
a
Minimum pulse width:
(minimum amount of time it takes a C/T to
recognize an input pulse)
200 ns
Logic family TTL
Inputs
Input logic load:
High input voltage:
Low input voltage:
Low input current:
Level sensitive
1 TTL Load
2.4 V min
0.8 V max
–
0.4 mA max
Outputs
High output:
Low output:
High output current (source):
Low output current (sink):
2.8 V min
0.6 V max
2 mA
12 mA
ESD protection (per spec)
Arc:
Contact:
8 kV
4 kV