Agilent Technologies E1441A user service ±10 Vdc into an open circuit

automatically adjusted.

•Output Amplitude and Output Termination: The output amplitude is automatically adjusted (and no error is generated) if you change the output termination. For example, if you set the amplitude to 10 Vpp and then change the termination from 50 ohms to “high impedance”, the displayed amplitude will double to 20 Vpp. If you change from “high impedance” to 50 ohms, the displayed amplitude will drop in half. See “Output Termination” on

page 25. for more information.

•A momentary glitch occurs in the output waveform at certain voltages due to output attenuator switching. This positive-going glitch occurs when the output voltage crosses the break-point voltage either from a lower voltage or a higher voltage. The voltages are shown below (inVpp) for a 0 volt dc offset:

.252, .399, .502, .796, 1, 1.59, 2.0, 3.17, 3.99, 6.32, 7.96

•The output voltage will momentarily drop to 0 volts at certain voltages due to output relay switching. This occurs when the output voltage crosses the break-point voltage either from a lower voltage or a higher voltage. The voltages are shown below (in Vpp) for a 0 volt dc offset: .317, .632, 1.26, 2.52, 5.02

For the offset parameter of the APPLy command, you can substitute “MINimum”, “MAXimum”, or “DEFault” in place of a specific value for the parameter. MIN selects the smallest dc offset voltage for the selected function (0 volts). MAX selects the largest offset for the selected function. The default offset voltage is 0 volts for all functions.

•You can set the offset to a positive or negative number with the restrictions shown below. If the specified offset voltage is not valid, the function generator will automatically adjust it to the maximum dc voltage allowed with the present amplitude. (Vmax is the maximum peak-to-peak amplitude for the selected output termination; Vpp is the output amplitude in volts peak-to-peak.) A -221, “Settings conflict” error is generated and the offset is automatically adjusted.

Voffset

Vpp	≤ V		and
+ -------		max
2

Voffset

≤2Vpp

•DC Offset and Output Termination: The offset voltage is automatically adjusted (and no error is generated) if you change the output termination. For example, if you set the offset to 100 mVdc and then change the termination from 50 ohms to “high impedance”, the displayed offset will double to

200 mVdc. If you change from “high impedance” to 50 ohms, the displayed offset will drop in half.

•For dc volts, the output level is actually controlled by setting the offset voltage. You can set the dc voltage to any value between ±5 Vdc into 50 ohms or

±10 Vdc into an open circuit.

Chapter 3 Agilent E1441A SCPI Command Reference 99