Keysight E4980A - Parasitics Incident to DUT Connection

208 Keysight E4980A/AL Precision LCR Meter
Measurement Procedure and Examples
Parasitics Incident to DUT Connection
7-
Parasitics Incident to DUT Connection
Bear in mind that some parasitics remain in the measurement path even after
performing corrections, as shown below.
Figure 7-17 shows parasitic impedance model after corrections are performed
using the Keysight 16047A/D/E test fixture. In this case, to minimize the
influence of parasitics on measurement values, insert the DUT completely into
the test fixture while keeping the leads of the DUT as short as possible.
Figure 7-17 Parasitic impedance model (using Keysight16047A/D/E)
Lo Residual inductance in DUT lead
Ro Lead resistance in DUT lead
Co Stray capacitance
㪼㪋㪐㪏㪇㪸㫌㪼㪈㪇㪐㪋
Lo
Co
Co' Co'
Ro
Lo
Ro
㪛㪼㫍㫀㪺㪼
㪜㫃㪼㪺㫋㫉㫆㪻㪼 㪜㫃㪼㪺㫋㫉㫆㪻㪼