Passive 10:1 Probe PML 111O
The PML 111O is a passive 10:1 probe manufactured by PMK, optimized for the use with Bode 100. It features a unique 1 MΩ design for the AC-coupled inputs of Bode 100.
Use the PML 111O to:
- Perform highly accurate loop gain measurements
- Reduce capacitive loading of your circuit
- Protect the input channels of your Bode 100
Difference between PML 111O & Standard probe with Bode 100 / 500
•The inputs of the Bode 100 are purely ac-coupled and the 1 MΩ (high-impedance termination) is behind the ac-coupling capacitor. Most standard 10:1 oscilloscope probes only have a 9 MΩ tip resistor and use the 1 MΩ termination of the instrument for the 10:1 division. When connected to the Bode 100, the 1 MΩ is not available as divider resistance for dc-signals since the ac-coupling capacitor blocks the dc-signal. Therefore, the dc-portion of the signal will not be divided by 10 and the full dc voltage from the probe-tip will be present at the input of the Bode 100, risking damage of the device. Probes like the PML 111O and the PHV1000-O contain the divider in the probe-tip to avoid this issue.
•The figure tries to depict the problem.
- Compact 2.5mm probe design
- 1MΩ || 12.5pF input impedance for lowest noise
- Exchangeable gold-plated spring-tip
- Attenuation ratio: 10:1
- Probe PML 111O with spring tip and protective cap
- Solid probe tip (CuBe 0.5 mm)
- Ground lead & ground spring-contact
- Sprung hook
- BNC adapter
- Isolation cap
- PCB adapter kit
- Color-coding rings (3×4 colors)
- Printed user-manual in the English language
