Features and Functions 4
Keysight 34970A/34972A User’s Guide 169
DAC Output Operations
The multifunction module (34907A) has two low-noise analog outputs capable of
outputting calibrated voltages between ±12 volts with 16 bits of resolution. Each
DAC (Digital-to-Analog Converter) channel can be used as a programmable
voltage source for analog input control of other devices.
– On the multifunction module, the DAC channels are numbered “s04” and
“s05”, where s represents the slot number.
– You can set the output voltage to any value between +12 VDC and -12 VDC, in
1 mV steps. Each DAC is earth referenced; it cannot float.
– Each DAC channel is capable of 10 mA maximum output current.
–A Factory Reset (*RST command), Instrument Preset (SYSTem:PRESet
command), and Card Reset (SYSTem:CPON command) from the remote
interface will reset both DACs to 0 VDC.
– Front-Panel Operation: After selecting the desired DAC, press
to edit the
output voltage. Press again to output the specified voltage from the DAC
channel.
– Remote Interface Operation: The following command outputs +2.5 VDC from
the DAC on channel 05.
SOURCE:VOLT 2.5,(@305)
You must limit the output current to 40 mA total for all three slots (six DAC
channels).
A from the front panel resets only the DAC currently selected (both
channels are not reset).
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