![Description of the In-Guard Lines](/images/new-backgrounds/15349/15349133x1.webp)
Theory of Operation 4
Overall Functional Description
Description of the |
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The following list describes the 11 5725A
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High voltage output from the 5725A
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High voltage sense line from the 5700A output terminals. This signal is then attenuated
∙BOOST IN
During normal 5725A ac operation, carries the 5700A DAC outputs, which in turn drives either the High Voltage Amplifier or Current Amplifier. During 5725A calibration, BOOST IN drives the High Voltage Sense assembly with up to
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Analog line that carries the current high output from the 5700A. When the user sets the current output location to "5725A" in a 5700A menu, this signal is routed to the 5725A binding posts. Under this operating condition, all 5700A/5725A current ranges are available from the same binding posts. Line
2.2A in normal operation. During current calibration, this line carries 1.3A to measure the value of the 0.02Ω 5725A current shunt.
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Current return for
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Current guard voltage from the 5700A; enables internal guarding within the 5725A only.
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5700A guard. Enables discrete guarding/shielding within the 5725A.
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System common from the 5700A. Once inside the 5725A, it becomes VCOM, HVCOM, DCOM, and KCOM.
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High quality ground from the 5700A that is the reference point for the 5700A DAC and Oscillator assemblies.