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Output Load Termination

Applies to output amplitude and offset voltage only. The U2761A Series modular function generator has a fixed series output impedance of 50 Ω to the front-panel Output connector. If the actual load impedance is different than the value specified, the displayed amplitude and offset levels will be incorrect.

• If you specify a 50 Ω termination but are actually terminating into an open circuit, the actual output will be twice the value specified. For example, if you set the offset to 100 mVdc (and specify a 50 Ω load) but are terminating the output into an open circuit, the actual offset will be 200 mVdc.
• If you change the output termination setting, the displayed output amplitude and offset levels are automatically adjusted (no error will be generated). For example, if you set the amplitude to 5 Vpp and then change the output termination from 50 Ω to "high impedance", the amplitude displayed on the function generator’s front panel will double to 10 Vpp. If you change from “high impedance” to 50 Ω, the displayed amplitude will drop in half.

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See Also

To view instrument manuals, click on Library tab from main BenchVue application window.

DC Offset Voltage

Output Amplitude