DC Offset Voltage
Set the dc offset voltage.
The number of outputs and the parameter choices vary by instrument. Some of the options described may not be available for a particular instrument. The Function Generator application will only list settings and values that are available for the selected instrument type.
- Limits Due to Output Termination: The offset limits are determined by the current output termination setting. For example, if you set the offset to 100 mVdc and then change the output termination from 50Ω to "high impedance", the offset voltage displayed on the function generator's front-panel will double to 200 mVdc (and no error will be generated). If you change from "high impedance" to 50Ω, the displayed offset will drop in half.
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You can also set the offset by specifying a high level and low level. For example, if you set the high level to +2 volts and the low level to -3 volts, the resulting amplitude is 5 Vpp (with an offset voltage of -500 mV).
To set the High-Low Level, click the Amplitude drop-down arrow and select High-Low Level: