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 “
s
04” and
“
s
05”, where
s
represents the slot number.
– You can set the output voltage to any value b12 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 o2.5 VDC from
the DAC on channel 05.
SOURCE:VOLT 2.5,(@305)
NOTE
You must limit the output current to 40 mA total for all three slots (six DAC
channels).
NOTE
A
from the front panel resets only the DAC currently selected (both
channels are not reset).
