Manual

DA1855A Differential Amplifier
48 922258-00 Rev A
Auto-Zero
PRx:AUTOZERO, PRx:AZ
Command
Description The PRx:AUTOZERO command initiates an auto zero cycle of the
differential amplifier to remove any offset drift from the output.
The amplifier inputs will be disabled for a fraction of a second during the
autozero cycle.
Command Syntax <channel>:AutoZero <channel>:={PR1, PR2, PR3, PR4}
Example The following command initiates an auto zero in the DA1855A
Differential Probe attached to channel 1:
CMD$=”PR1:AZ”:CALL IBWRT(SCOPE%,CMD$)
Bandwidth Limit
PRx:BANDWIDTH_LIMIT, PRx:BWL
Command/Query
Description The PRx:BWL command sets the upper (HF) -3 dB bandwidth limits of the
DA1855A. The arguments are in Hertz.
The PRx:BWL? query returns the upper bandwidth limit setting for the
differential amplifier connected to the specified channel.
Command Syntax <channel>:BWL<upper bandwidth> <channel>:={PR1,
PR2, PR3, PR4}
<upper bandwidth>:={FULL, 100K, 1M or 20M}
Query Syntax <channel>:BWL?
Response Format <channel>:BWL <upper bandwidth>
Example The following command sets the upper bandwidth of the DA1855A
connected to channel 1 to 100 kHz.
CMD$=”PR1:BWL 100K”: CALL IBWRT(SCOPE%,CMD$)