P6202: Difference between revisions

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* [http://w140.com/tek_p6202a.pdf Tektronix P6202A Manual (PDF)]
{{Probe Sidebar
* [http://w140.com/tekscope_1976vol8no2_p6202.pdf P6202 Article in 1976 Volume 8 Number 2 Tekscope (PDF)]
|manufacturer=Tektronix
|model=P6202
|summary=500 MHz Active FET Probe
|image=Tek-p6202-in-case.jpg
|caption=Tektronix P6202
|for=50 Ω scope inputs
|introduced=1976
|discontinued=(?)
|manuals=
* [[Media:070-2067-00.pdf|Tektronix P6202 Manual]]
* [[Media:070-3642-02.pdf|Tektronix P6202A Manual]]
}}
The '''Tektronix P6202''' is a 500 MHz active 10× FET probe with 50 Ω output impedance, introduced in 1976. 


[[Category:Oscilloscope Probes]]
The 6202 has its own mains power supply, the 6202A (1980) has a [[LEMO S-series connector]] fitting the [[7000-series scopes]]' probe power outlets.
 
{{BeginSpecs}}
{{Spec | Bandwidth        | DC to 500 MHz (16 Hz lower limit with additional AC coupling tip) }}
{{Spec | Rise time        | < 0.7 ns }}
{{Spec | Attenuation      | 10 : 1 (100 : 1 with additional 10× attenuator tip, 010-0384-00) }}
{{Spec | Input impedance  | 10 MΩ // 2 pF with or without additional 10× attenuator tip, +2 pF for AC coupling tip }}
{{Spec | Input range      | ± 6 V (± 60 V with additional 10× attenuator tip) }}
{{Spec | DC offset        | ± 55 V (± 200 V with additional 10× attenuator tip) }}
{{Spec | Max input        | ± 200 V (nondestructive) }}
{{Spec | Cable length    | 2 m (6.5') }}
{{EndSpecs}}
 
==Links==
{{Documents|Link=P6202}}
 
==Internals==
An initial 8 MΩ : 2 MΩ divider drives a dual JFET (source follower + current source), a PNP emitter follower and finally an NPN emitter follower as a cable driver. These stages use SMD components located in the probe tip.  The probe control box at the end of the coax only contains a ±7 V regulator, a switchable 50 Ω terminator, and the offset potentiometers that supply ±15 V to the bottom of the input divider.  There is no input protection apart from the divider.
 
==Pictures==
===P6202===
<gallery>
Tek-p6202-case-open.jpg  | Carrying case
Tek-p6202-in-case.jpg    | Probe in case, with power supply, 10:1 pre-divider tip (010-0384-00), hook tip, AC coupling tip and connection box.
Tek-p6202-tip-1.jpg      | Amplifier in probe tip (SMD components in 1976!)
Tek-p6202-tip-2.jpg      | Amplifier in probe tip, reverse
Tek-p6202-box1.jpg      | Connection box
Tek-p6202-box2.jpg
Tek-p6202-box3.jpg
Tek-p6202-box4.jpg
P6202-circuit.jpg        | Schematic
</gallery>
 
===P6202A===
<gallery>
Tek_P6202A_1.jpg
Tek_P6202A_2.jpg
Tek_P6202A_3.jpg
Tek_P6202A_4.jpg
Tek_P6202A_5.jpg
Tek_P6202A_6.jpg  | Probe power connector
Tek-p6202-case.jpg | Case exterior
</gallery>
 
===Measurements===
Rise time of a [[P6202]] 500 MHz FET probe measured on a [[7S12]] plugin in a [[7844]] mainframe (with 25 ps [[S-52]] pulse generator head and 25 ps [[S-4]] sampling head). 
Measured rise time ~440 ps observed on this specimen is equivalent to 795 MHz bandwidth.
 
<gallery>
P6202-risetime-7s12-1ns.jpg | at 1 ns/Div
P6202-risetime-7s12-100ps.jpg | at 100 ps/Div
</gallery>
 
 
[[Category:Active oscilloscope probes]]

Revision as of 23:15, 8 September 2024

Tektronix P6202
500 MHz Active FET Probe
Tektronix P6202

Compatible with 50 Ω scope inputs

Produced from 1976 to (?)

Manuals


Manuals – Specifications – Links – Pictures

The Tektronix P6202 is a 500 MHz active 10× FET probe with 50 Ω output impedance, introduced in 1976.

The 6202 has its own mains power supply, the 6202A (1980) has a LEMO S-series connector fitting the 7000-series scopes' probe power outlets.

Key Specifications

Bandwidth DC to 500 MHz (16 Hz lower limit with additional AC coupling tip)
Rise time < 0.7 ns
Attenuation 10 : 1 (100 : 1 with additional 10× attenuator tip, 010-0384-00)
Input impedance 10 MΩ // 2 pF with or without additional 10× attenuator tip, +2 pF for AC coupling tip
Input range ± 6 V (± 60 V with additional 10× attenuator tip)
DC offset ± 55 V (± 200 V with additional 10× attenuator tip)
Max input ± 200 V (nondestructive)
Cable length 2 m (6.5')

Links

Documents Referencing P6202

Document Class Title Authors Year Links
Tekscope 1976 V8 N2.pdf Article A New Low-cost 500 MHz Probe Ron Lang 1976 P6202

Internals

An initial 8 MΩ : 2 MΩ divider drives a dual JFET (source follower + current source), a PNP emitter follower and finally an NPN emitter follower as a cable driver. These stages use SMD components located in the probe tip. The probe control box at the end of the coax only contains a ±7 V regulator, a switchable 50 Ω terminator, and the offset potentiometers that supply ±15 V to the bottom of the input divider. There is no input protection apart from the divider.

Pictures

P6202

  • Carrying case

    Carrying case

  • Probe in case, with power supply, 10:1 pre-divider tip (010-0384-00), hook tip, AC coupling tip and connection box.

    Probe in case, with power supply, 10:1 pre-divider tip (010-0384-00), hook tip, AC coupling tip and connection box.

  • Amplifier in probe tip (SMD components in 1976!)

    Amplifier in probe tip (SMD components in 1976!)

  • Amplifier in probe tip, reverse

    Amplifier in probe tip, reverse

  • Connection box

    Connection box

  • Schematic

    Schematic

P6202A

  • Probe power connector

    Probe power connector

  • Case exterior

    Case exterior

Measurements

Rise time of a P6202 500 MHz FET probe measured on a 7S12 plugin in a 7844 mainframe (with 25 ps S-52 pulse generator head and 25 ps S-4 sampling head). Measured rise time ~440 ps observed on this specimen is equivalent to 795 MHz bandwidth.

  • at 1 ns/Div

    at 1 ns/Div

  • at 100 ps/Div

    at 100 ps/Div

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