Idiomas disponibles
Idiomas disponibles
Digital Output
The DAQM907A module has two non-isolated 8-bit input/output ports, which you can use for outputting digital
patterns. You can combine the two ports to output a 16-bit word. A simplified diagram of a single output bit is shown
below:
– Each output bit is capable of directly driving up to 10 TTL loads (less than 1 mA). The buffer for each port is
used to drive a high output from the internal +5 V supply through the diode. The drive is rated at +2.4 V
minimum at 1 mA.
– Each output bit is also can active sink, capable of sinking up to 400 mA from the external power supply. The
FET is used to sink currents and has a nominal "on" resistance of 0.2 Ω.
– For non-TTL logic you must provide an external pull-up. A description of the pull-up calculation is given on
the following section.
– If used with an external power supply and pull-up, the external supply must be greater than +5 VDC and less
than +42 VDC.
Keysight DAQ970A/DAQ973A User's Guide
4 Measurement Tutorials
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