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{{Plugin Sidebar 2 |
{{Plugin Sidebar
title=Tektronix 7D12 |
|manufacturer=Tektronix
summary=Digital meter plugin |
|series=7000-series scopes
image=7d12-crop.jpg |
|type=7D12
caption=7D12 with M2 Sample and Hold Module |
|summary=digital meter plugin
series=[[7000-series scopes ]] |
|image=7d12-m2-front.jpg
introduced=1974 |
|caption=7D12 with M2 Sample and Hold Module
discontinued=1986 |
|introduced=1974
manuals=
|discontinued=1986
* [http://w140.com/smb/7d12_svc_sm.pdf Tektronix 7D12 Service (OCR, PDF)]
|manuals=
* [[Media:070-1470-00.pdf|Tektronix 7D12 Service]] (OCR)
* [[Media:070-1469-00.pdf| M1-M2-M3 Operators Manual]]
* [[Media:Tek m1 interim.pdf |Tektronix M1 Interim Manual]]
* [[Media:7D12-M2.pdf | M2 Sample/Hold]]
* [[Media:070-1513-00.pdf | M3 RMS Module]]
* [[Media:7000 Series Digital Plug-In Applications.pdf|7000 Series Digital Plug-In Applications]]
}}
}}
The '''Tektronix 7D12''' is an A/D converter (digital meter) plug-in for [[7000-series scopes]].
The '''Tektronix 7D12''' is an A/D converter (digital meter) plug-in for [[7000-series scopes]]. The A/D converter can be triggered internally (when installed in a horizontal bay), manually by a front panel switch, or externally from a trigger source. The 7D12 will trigger automatically at approximately 4 Hz if set to Auto. It contains a vertical display amplifier that displays the signal being applied to the module and a gate display amplifier that displays a representation of the 7D12 internal gate signal.  


The 7D12 accepts plug-in modules M1, M2, or M3.
The 7D12 accepts plug-in modules M1, M2, or M3.


* M1 is a digital multimeter module with DC voltage, resistance and temperature ranges.
* M1 is a digital multimeter module with DC voltage, resistance and temperature (with [[P6058]]) ranges. It does not produce an analog output signal.
* M2 is a sample and hold module. The M2 can measure voltage from ground to a selected point, or the difference voltage between two points defined by a trigger signal.  When triggered by the delayed gate signal from a time base, this allows cursor-like measurements to be made.  The module has an aperture time of only 10 ns.  With repetitive signals, the period between the sampled points can be as short as 30 ns, in single shot mode it must be at least 150 μs.
* M2 is a sample and hold module that can measure voltage from ground to a selected point, or the difference voltage between two points defined by a trigger signal.  When triggered by the delayed gate signal from a time base, this allows cursor-like measurements to be made.  The module has an aperture time of only 10 ns.  With repetitive signals, the period between the sampled points can be as short as 30 ns, in single shot mode it must be at least 150 μs. <br />Input sensitivity is selectable between ±2 V (100/200/500 mV/Div) and ±20 V (1/2/5 V/Div) ranges.  The input has a ring to detect a ×10 probe with [[readout pin]] ([[P6055]] recommended) and adjusts the display accordingly. Signal bandwidth is 25 MHz.
* M3 is a True RMS module.
* M3 is a True RMS module with floating inputs. It produces an analog output signal with a 3 dB bandwidth of 700 kHz and vertical sensitivities between 100 mV/Div to 500 V/Div in a 1−2−5 sequence.  The RMS converter is implemented with opamps, a dual transistor, and transistors from a [[CA3046]] array.
* [[067-0700-00]] is a calibration fixture.
* [[067-0700-00]] is a calibration fixture.


==Links==
==Links==
* [[Media:Tekscope 1975 V7 N5.pdf | TekScope Vol. 7 No. 5, 1975]] p.15+: Dave McCullough, ''Delayed gate aids oscilloscope digital measurements''
{{Documents|Link=7D12}}
{{PatentLinks|7D12}}


==Pictures==
==Pictures==


<gallery>
<gallery>
File:Tek 7d12 m2.jpg|7D12 with M2 Sample and Hold Module
7d12-m2-front.jpg         | 7D12 with M2 Sample and Hold Module
File:Tek 7d12 with m1 m2 m3.jpg | 7D12 with M1, M2 and M3
Tek 7d12 with m1 m2 m3.jpg | 7D12 with M1, M2 and M3
File:Tek-067-0700-00.jpg | 067-0700-00
7d12-empty-left.jpg       | 7D12 without plug-in, left side
Tek m1 1.jpg|M1
7d12-empty-right.jpg       | 7D12 without plug-in, right side
Tek m1 2.jpg|M1
7d12-m2-left.jpg           | 7D12 with M2 plug-in, left side
Tek m3 1.jpg|M3
7d12-m2-right.jpg         | 7D12 with M2 plug-in, right side
Tek m3 2.jpg|M3
Tek-067-0700-00.jpg       | [[067-0700-00]] calibration plug-in
</gallery>
</gallery>
===M1===
<gallery>
Tek m1 1.jpg              | M1 plug-in, front
Tek m1 2.jpg              | M1 plug-in, rear
</gallery>
===M2===
<gallery>
Tek m2 front.jpg | M2 front
M2-left.jpg                | M2 plug-in, left side
M2-right.jpg              | M2 plug-in, right side
M2 display 1.jpg          | 7D12/M2 displaying sawtooth from [[585]] (lower trace), triggered with delayed gate output from a [[7B53A]] (intensified).
M2 display 2.jpg          |
Master sampler cartoon.png | "Master Sampler" [[cartoon]] in schematic
</gallery>
===M3===
<gallery>
Tek m3 1.jpg              | M3 plug-in, front
Tek m3 2.jpg              | M3 plug-in, rear
7D12-M3 Least Significant Digit Blanking cartoon.png | "Least Significant Digit Blanking" [[cartoon]] in schematic
</gallery>
==Components==
{{Parts|7D12}}


[[Category:7000 series special-function plugins]]
[[Category:7000 series special-function plugins]]

Latest revision as of 10:48, 19 June 2024

Tektronix 7D12
digital meter plugin
7D12 with M2 Sample and Hold Module

Compatible with 7000-series scopes

Produced from 1974 to 1986

Manuals
Manuals – Specifications – Links – Pictures

The Tektronix 7D12 is an A/D converter (digital meter) plug-in for 7000-series scopes. The A/D converter can be triggered internally (when installed in a horizontal bay), manually by a front panel switch, or externally from a trigger source. The 7D12 will trigger automatically at approximately 4 Hz if set to Auto. It contains a vertical display amplifier that displays the signal being applied to the module and a gate display amplifier that displays a representation of the 7D12 internal gate signal.

The 7D12 accepts plug-in modules M1, M2, or M3.

  • M1 is a digital multimeter module with DC voltage, resistance and temperature (with P6058) ranges. It does not produce an analog output signal.
  • M2 is a sample and hold module that can measure voltage from ground to a selected point, or the difference voltage between two points defined by a trigger signal. When triggered by the delayed gate signal from a time base, this allows cursor-like measurements to be made. The module has an aperture time of only 10 ns. With repetitive signals, the period between the sampled points can be as short as 30 ns, in single shot mode it must be at least 150 μs.
    Input sensitivity is selectable between ±2 V (100/200/500 mV/Div) and ±20 V (1/2/5 V/Div) ranges. The input has a ring to detect a ×10 probe with readout pin (P6055 recommended) and adjusts the display accordingly. Signal bandwidth is 25 MHz.
  • M3 is a True RMS module with floating inputs. It produces an analog output signal with a 3 dB bandwidth of 700 kHz and vertical sensitivities between 100 mV/Div to 500 V/Div in a 1−2−5 sequence. The RMS converter is implemented with opamps, a dual transistor, and transistors from a CA3046 array.
  • 067-0700-00 is a calibration fixture.

Links

Documents Referencing 7D12

Document Class Title Authors Year Links
Tekscope 1973 V5 N6 Nov 1973.pdf Article A fast A/D plug-in for the oscilloscope Hideki Iwata • Ken Sternes 1973 7D12 • M1 • M2 • M3
Tekscope 1975 V7 N5.pdf Article Delayed Gate Aids Oscilloscope Digital Measurements Dave McCullough 1975 7D12 • 7D14 • 7D15 • 7B53A
7000 Series Digital Plug-In Applications.pdf Application Note 7000 Series Digital Plug-In Applications 1977 7D10 • 7D11 • 7D12 • 7D13 • 7D14 • 7D15

Patents that may apply to 7D12

Page Title Inventors Filing date Grant date Links
Patent US 3562464A Cam actuated switch having movable and fixed contacts on circuit board Howard Vollum • Willem H Verhoef • Tony Sprando 1968-10-07 1971-02-09 Cam switches • 2101 • 2701 • 2703 • 432 • 434 • 465 • 475 • 5A15N • 5A18N • 5A20N • 5A21N • 5A38 • 5A45 • 5B10N • 5B12N • 7A15 • 7A16A • 7A18 • 7A19 • 7A24 • 7A26 • 7B10 • 7B15 • 7B50 • 7B51 • 7B52 • 7B53A • 7B50A • 7B70 • 7B71 • 7B80 • 7B85 • 7B87 • 7B92 • 7B92A • 7D01 • 7D12 • 7D15 • 7J20 • 7S12 • 7T11 • 7T11A • AF501 • AM502 • AM503 • DC502 • DC503 • DC504 • DC505 • DM501 • DM502 • FG501 • FG501A • FG502 • FG503 • FG504 • FG507 • PG501 • PG502 • PG505 • PG506 • PG506A • PG508 • TG501 • SC502 • SC503 • SC504
Patent US 3584174A Push-button switch apparatus having cam actuated switch contacts and selective illumination means Tony Sprando • Peter S Winkelmann 1969-06-09 1971-06-08 Back-lit switches • 7A11 • 7A12 • 7A13 • 7A14 • 7A16 • 7A16P • 7A22 • 7A42 • 7B42N • 7B50 • 7B51 • 7B52 • 7B53A • 7B70 • 7B71 • 7B92 • 7B92A • 7D10 • 7D11 • 7D12 • 7D114 • 7D15 • 7D20 • 7F10 • 7L5 • 7L12 • 7L13 • 7L14 • 7L18 • 7M13 • 7S11 • 7S12 • 7T11 • 067-0587-00 • 067-0587-01 • 067-0587-02 • 067-0587-10

Pictures

  • 7D12 with M2 Sample and Hold Module

    7D12 with M2 Sample and Hold Module

  • 7D12 with M1, M2 and M3

    7D12 with M1, M2 and M3

  • 7D12 without plug-in, left side

    7D12 without plug-in, left side

  • 7D12 without plug-in, right side

    7D12 without plug-in, right side

  • 7D12 with M2 plug-in, left side

    7D12 with M2 plug-in, left side

  • 7D12 with M2 plug-in, right side

    7D12 with M2 plug-in, right side

  • 067-0700-00 calibration plug-in

    067-0700-00 calibration plug-in

M1

  • M1 plug-in, front

    M1 plug-in, front

  • M1 plug-in, rear

    M1 plug-in, rear

M2

  • M2 front

    M2 front

  • M2 plug-in, left side

    M2 plug-in, left side

  • M2 plug-in, right side

    M2 plug-in, right side

  • 7D12/M2 displaying sawtooth from 585 (lower trace), triggered with delayed gate output from a 7B53A (intensified).

    7D12/M2 displaying sawtooth from 585 (lower trace), triggered with delayed gate output from a 7B53A (intensified).

  • "Master Sampler" cartoon in schematic

    "Master Sampler" cartoon in schematic

M3

  • M3 plug-in, front

    M3 plug-in, front

  • M3 plug-in, rear

    M3 plug-in, rear

  • "Least Significant Digit Blanking" cartoon in schematic

    "Least Significant Digit Blanking" cartoon in schematic

Components

Some Parts Used in the 7D12

Part Part Number(s) Class Description Used in
155-0022-00 155-0022-00 • 155-0022-01 Monolithic integrated circuit analog multiplexer 147 • 148 • 149 • 335 • 468 • 1430 • 1441 • 1461 • 1900 • 1910 • 2220 • 2221 • 2230 • 5223 • 5403 • 5440 • 5441 • 5443 • 5444 • 5A38 • 7313 • 7403N • 7503 • 7504 • 7514 • 7603 • AN/USM-281C • 7613 • 7623 • 7623A • 7633 • 7704 • R7704 • 7704A • 7834 • 7844 • 7854 • R7912 • 7912AD • 7912HB • 7904 • R7903 • 7904A • 7934 • 7A12 • 7A18 • 7A18A • 7A18N • 7B52 • 7B53N • 7D10 • 7D11 • 7D12 • NT-7000 • P7001
155-0090-00 155-0090-00 • 155-0090-01 • 155-0090-02 Monolithic integrated circuit four-decade counter, latch and D/A converter 7B85 • 7D01 • 7D12 • 7D15 • 7J20
155-0171-00 155-0171-00 Monolithic integrated circuit four-decade counter, latch and D/A converter 7B85 • 7D01 • 7D12 • 7D15 • 7J20
2N4851 151-0504-00 • 151-0504-01 Discrete component silicon unijunction transistor DC501 • DC502 • DC503 • DC503A • DC504 • DC505 • DC505A • DC508 • DC508A • LA501 • R1330 • 212 • 214 • 4002A • 4623 • 4631 • 4632 • 4633A • 4634 • 4701 • 4701R • 670-0696-01 • 670-1274-00 • 670-1981-00 • 670-1981-01 • 7D01 • 7D12 • 7L12
CA3046 156-0048-00 Monolithic integrated circuit transistor array 4601 • 7104 • 7403N • 7503 • 7B53A • 7D12 • DM502 • FG504 • S-52 • Telequipment D34 • 7603 • 7613 • 7623 • 7633 • FG507 • Keithley 227
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