The Keysight E2695A SMA Probe Head allows an easy and high performance way to connect differential (or single-ended) signals that exist on SMA connectors to Keysight InfiniiMax 1130 series oscilloscope probes. Signals that exist on other types of 50Ω connectors can be connected using appropriate adaptors.
Advantages of this solution are:
- When measuring differential signals only one channel of the oscilloscope is used.
- Short closely matched 0.086 in semi-rigid coax can be used on the inputs which means that differential de-skew isn't needed unless the signals are skewed at their SMA connectors.
- Probe cable loss is compensated. Conventional cables used to connect signals to the oscilloscope inputs are not compensated. Cable loss can be a very significant contributor to jitter!
- Common mode rejection is better than using channel subtraction in oscilloscope.
- Termination network can be customized to accommodate different standards or needs including supplying a bias voltage to the termination point.
- Avoids probe loading effects since input is a well matched 50Ω termination.
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Documents
- 1130/1/2/4B Probes User's Guide
- 1130/1/2/4B Recommended Probe Configurations Card
- 1168/9B Probes User's Guide
- 1168/9B Recommended Probe Configurations Card
Compatibility
Amplifier Compatible N2830/1/2A N2800/1/2/3A 1168/9B ♦ 1130/1/2/4B ♦