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Active Probes: Difference between revisions
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'''Active Probes''' contain an active element like a FET or a tube right at the tip of the probe | '''Active Probes''' contain an active element like a FET or a tube right at the tip of the probe to create higher input impedances and eliminate cable loading, most useful for high frequency probing. | ||
For a list of all active | For a list of all active probes, also see [[:Category:Active oscilloscope probes|Active oscilloscope probes]]. | ||
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|rowspan="7"|[[P80]] || 1× || rowspan="7"|? || rowspan="7"|? || 100 kΩ || 14 pF ||rowspan="7"| 100 MHz || ±0.2 V|| rowspan="7"| N/A ||rowspan="7"|150 V || rowspan="7"|93 Ω <br/> Diff.||rowspan="7"|[[80|Type 80 Plug-In]]||rowspan="7"| | |rowspan="7"|[[P80]] || 1× || rowspan="7"|? || rowspan="7"|? || 100 kΩ || 14 pF ||rowspan="7"| 100 MHz || ±0.2 V|| rowspan="7"| N/A ||rowspan="7"|150 V || rowspan="7"|93 Ω <br/> Diff.||rowspan="7"|[[80|Type 80 Plug-In]]||rowspan="7"| n/a | ||
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| 2× || 200 kΩ || 7.8 pF || ±0.4 V | | 2× || 200 kΩ || 7.8 pF || ±0.4 V | ||
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===Notes=== | ===Notes=== | ||
''[note 1]'' These probes are active probes only for DC. For AC these probes are regular 50 Ω passive probes. For DC the load impedance is virtually connected to the offset voltage by means of an operational amplifier, so the DC loading can be tuned out for signals offset from 0V. They are listed here for completeness since Tektronix lists them as such in the [ | ''[note 1]'' These probes are active probes only for DC. | ||
For AC these probes are regular 50 Ω passive probes. | |||
For DC the load impedance is virtually connected to the offset voltage by means of an operational amplifier, | |||
so the DC loading can be tuned out for signals offset from 0V. | |||
They are listed here for completeness since Tektronix lists them as such in the | |||
[[Media:Tek-p6203-p62204-p62205-p6217-p6231.pdf|Tektronix P6203, P6204, P6205, P6217, P6231 Catalog Specs]]. | |||
[[Category:Lists]] | [[Category:Lists]] | ||