P6230: Difference between revisions
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[[File:P6230-1.jpg|thumb|right|300px|P6230 termination box]] | |||
[[File:P6230-6.jpg|thumb|right|300px|P6230 probe tip]] | |||
The '''Tektronix P6230''' is a passive ×10 (450:50 Ω) probe with 1.5 GHz bandwidth and DC offset capability, intended to minimize probe-loading effect when used on logic circuits. | The '''Tektronix P6230''' is a passive ×10 (450:50 Ω) probe with 1.5 GHz bandwidth and DC offset capability, intended to minimize probe-loading effect when used on logic circuits. | ||
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The P6230 is sometimes described as a FET probe or an active probe, however, as the circuit diagram clearly shows, this is not the case. | The P6230 is sometimes described as a FET probe or an active probe, however, as the circuit diagram clearly shows, this is not the case. | ||
The input signal runs through a 400 Ω resistor and a 1 μF capacitor, terminated in 50 Ω internally (switchable) or externally. | The input signal runs through a 400 Ω resistor and a 1 μF capacitor, terminated in 50 Ω internally (switchable) or externally. | ||
The active circuit in the P6230, a standard NE5532 dual opamp, has the function of restoring and offsetting the input signal's DC | The active circuit in the P6230, a standard NE5532 dual opamp, has the function of restoring and offsetting the input signal's | ||
low-frequency and DC components, similar to the feed-beside technique used in the [[7104]] scope and [[7A29]] amplifier. | |||
As a modular subminature probe it shares accessories with many other Tektronix | As a modular subminature probe, it shares accessories with many other Tektronix | ||
subminature probes although the input hybrid is unique. Tip color is yellow, | subminature probes although the input hybrid is unique. Tip color is yellow, | ||
connector end color is blue, part number [[206-0279-00]]. | connector end color is blue, part number [[206-0279-00]]. Its end to end | ||
resistance is 400 | resistance is 400 Ω. | ||
{{BeginSpecs}} | {{BeginSpecs}} | ||
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<gallery> | <gallery> | ||
File:P6230-1.jpg | |||
File:P6230-6.jpg | |||
File:P6230-2.jpg | |||
File:P6230-3.jpg | |||
File:P6230-4.jpg | |||
File:P6230-5.jpg | |||
File:P6230-circuit.jpg | P6230 circuit diagram | File:P6230-circuit.jpg | P6230 circuit diagram | ||
File:P6230-impedance.jpg | P6230 input impedance graph | File:P6230-impedance.jpg | P6230 input impedance graph |
Revision as of 03:08, 29 November 2015
The Tektronix P6230 is a passive ×10 (450:50 Ω) probe with 1.5 GHz bandwidth and DC offset capability, intended to minimize probe-loading effect when used on logic circuits.
It can be powered from 7000 series mainframes having LEMO S-series connectors for probe power, or compatible units such as the 1101.
The P6230 is sometimes described as a FET probe or an active probe, however, as the circuit diagram clearly shows, this is not the case. The input signal runs through a 400 Ω resistor and a 1 μF capacitor, terminated in 50 Ω internally (switchable) or externally. The active circuit in the P6230, a standard NE5532 dual opamp, has the function of restoring and offsetting the input signal's low-frequency and DC components, similar to the feed-beside technique used in the 7104 scope and 7A29 amplifier.
As a modular subminature probe, it shares accessories with many other Tektronix subminature probes although the input hybrid is unique. Tip color is yellow, connector end color is blue, part number 206-0279-00. Its end to end resistance is 400 Ω.
Key Specifications
Bandwidth | DC to ≥ 1.5 GHz |
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Rise time | ≤ 230 ps |
Attenuation | 10× |
Input Impedance | 450 Ω // 1.3 pF (1.6 pF guaranteed) |
Signal delay | 8.7 ± 0.1 ns |
DC Offset range | -5 V ≤ (Vsignal + <Voffset) ≤ +5 V |
Features |
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Links
- P6230 @ barrytech.com (incorrectly described as active probe)
Manuals
- P6230 Operator's manual (PDF, 155KB)
Prices
Year | 1985 | 1989 |
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Catalog price | $395 | $420 |
2015 value | $870 | $800 |
Pictures
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P6230 circuit diagram
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P6230 input impedance graph