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{{Oscilloscope Sidebar|
{{Oscilloscope Sidebar  
title=Tektronix 2440 |
|manufacturer=Tektronix
image=2440_1.jpg |
|series=2400-series scopes
caption=Tektronix 2440  |
|model=2440  
introduced=1988 |
|image=2440_1.jpg  
discontinued=(?) |
|caption=Tektronix 2440   
summary=300 MHz, 500 MS/s 2-ch digital scope |
|introduced=1988  
manuals=
|discontinued=(?)  
* [http://w140.com/tek_2440_service.pdf Tektronix 2440 Manual (complete, B014064 and below) (PDF)]
|summary=300 MHz, 500 MS/s 2-ch digital scope  
* [http://w140.com/tek_2440_programmer_man.pdf Tektronix 2440 Programmer Manual (PDF)]
|designers=
* [http://w140.com/tek_2440.pdf Tektronix 2440 Manual (without schematics) (PDF)]
|manuals=
* [[Media:Tek-2430A-2432A-2440-catalog.pdf|2430A/2432A/2440 catalog page (PDF)]]
* [[Media:070-6599-00.pdf|Tektronix 2440 Operators Manual]]
* [[Media:070-6600-00.pdf|Tektronix 2440 User Reference]]
* [[Media:070-6601-00.pdf|Tektronix 2440 Programmer Manual]]
* [[Media:070-6602-00.pdf|Tektronix 2440 GPIB Pocket Guide]]
* [[Media:070-6603-00.pdf|Tektronix 2440 Service Manual (complete, B014064 and below)]]
 
* [https://w140.com/tek_2440.pdf Tektronix 2440 Service Manual (without schematics)]
* [[Media:2430A-2432A-2440-catalog.pdf|2430A/2432A/2440 catalog page]] (OCR)
}}
}}
The '''Tektronix 2440''' is a two-channel 300 MHz digital sampling oscilloscope from the late 1980s.
The '''Tektronix 2440''' is a two-channel 300 MHz, 500 MS/s digital sampling oscilloscope from the late 1980s.
The maximum sample rate is 500 megasamples per second, per channel.
 
It uses CCDs (essentially, analog shift registers) to store input samples at high speed and a single 8 bit flash A/D converter to digitize the time-multiplexed CCD output signals at 4 MS/s.


<blockquote>
<blockquote>
'''WARNING:'''<br />
'''WARNING:'''<br />
Operation of the 2440 (and 2432 and 2430): A/D-converter and CCD hybrids may suffer irreparable damage within a few minutes if operated out of the metal enclosure without extra cooling.
Operation of the 2440, 2432, 2432A, 2430, and 2430A: A/D-converter and CCD hybrids may suffer irreparable damage within a few minutes if operated out of the metal enclosure without extra cooling.
</blockquote>
</blockquote>


{{MissingSpecs}}
{{BeginSpecs}}
 
{{Spec | Bandwidth | 300 MHz (Limit: 20, 100, Full) }}
'''Options'''
{{Spec | Rise time | 1.2 ns (Repeat on, 16×averaging)}}
{{Spec | Sampling rate | 500 MSa/s each channel with simultaneous acquisition }}
{{Spec | Sampling type | Real time: 100 ns/Div and slower, Equivalent time 50 ns/Div and faster}}
{{Spec | Single event bandwidth  | 200 MHz}}
{{Spec | Deflection | 2 mV/div to 5 V/div in 1-2-5 sequence }}
{{Spec | Resolution | 8 bit }}
{{Spec | Record length | 1024 samples }}
{{Spec | Auto scale factor | On-Screen Readout indicates probe tip deflection factors for ×1, ×10, ×100 and ×1000 probes }}
{{Spec | Input impedance| 1 MΩ // 15 pF or 50Ω }}
{{Spec | Sweep speeds | 2 ns/div to 5 s/div in 1-2-5 sequence (Modes A, A Intensified and B)}}
{{Spec | Auto measure| Simultaneously measures up to four parameters on one or more displayed waveforms, updated at 3 Hz intervals or display a snapshot of 20 parameters of waveform target }}
{{Spec | Acquisition modes| Normal, Envelope (glitch capture), Average }}
{{Spec | Display modes| CH1, CH2, invert, add, multiply, X-Y }}
{{Spec | Cursors  | Volts, Time, Volts At Time, 1/Time, Slope }}
{{Spec | Functions | A Mode - Auto Level, Auto/Roll, Normal and Single Seq; B Mode - Trigger After Delay, Runs After Delay, 1K Record Length and more }}
{{Spec | Interface | GPIB }}
{{Spec | Probes    | Two passive [[P6137]] 400 MHz ×10 voltage probes, 1.3 m }}
{{Spec | Power    | 90 to 132 V<sub>AC</sub> or 80 to 250 V<sub>AC</sub>, 48 to 440 Hz; 160 W }}
{{Spec | Features  |
* Autoprobe Function With [[P6137]] Probe
* 300 MHz X-Y bandwidth at probe tip
* Automatic measurements
* extensive triggering capabilities
* Printer/Plotter Output
* On-screen HELP text describing every front-panel control
}}
{{Spec | Options |
* 03 - Word Recognizer ([[P6407]])
* 03 - Word Recognizer ([[P6407]])
* 05 - Video Waveform Measurement System
* 05 - Video Waveform Measurement System
* 11 - Two [[LEMO S-series connector|probe-power connectors]] on the rear panel
* 11 - Two [[LEMO S-series connector|probe-power connectors]] on the rear panel
}}
{{EndSpecs}}


==Links==
==Links==
* [https://hohlerde.org/rauch/elektronik/geraete/tek2440/index.en.html Tektronix 2440 internals & repair @ hohlerde.org]
* [https://hohlerde.org/rauch/en/elektronik/geraete/tek2440/  Tektronix 2440 internals & repair @ hohlerde.org]
 
==Internals==
The 2440 employs several processors − an [[Motorola 6809|MC68B09]] main CPU controls the instrument, a custom 16-bit waveform processor performs signal computations, and an [[Motorola 6805|MC6805]] microcontroller handles the front panel interface.  The GPIB Interface is implemented with a [[TMS9914]] controller.
 
The power supply consists of a buck-type pre-regulator followed by a push-pull inverter and linear post-regulators (except for the +5 V digital supply rail).
 
CRT is a [[154-0850-01]].


==Pictures==
==Pictures==
Line 38: Line 81:
Tek 2440 5.jpg
Tek 2440 5.jpg
Tek 2440 rear2.jpg
Tek 2440 rear2.jpg
2440 1A.jpg
2440 1B.jpg
</gallery>
</gallery>


[[Category:2000 series scopes]]
==Components==
{{Parts|2440}}
 
 
 
[[Category:2400 series scopes]]
[[Category:Digital storage scopes]]
[[Category:Digital storage scopes]]


[[Category:GPIB interface]]
[[Category:GPIB interface]]

Latest revision as of 03:56, 29 March 2024

Tektronix 2440
300 MHz, 500 MS/s 2-ch digital scope
Tektronix 2440

Produced from 1988 to (?)

Manuals
Manuals – Specifications – Links – Pictures

The Tektronix 2440 is a two-channel 300 MHz, 500 MS/s digital sampling oscilloscope from the late 1980s.

It uses CCDs (essentially, analog shift registers) to store input samples at high speed and a single 8 bit flash A/D converter to digitize the time-multiplexed CCD output signals at 4 MS/s.

WARNING:
Operation of the 2440, 2432, 2432A, 2430, and 2430A: A/D-converter and CCD hybrids may suffer irreparable damage within a few minutes if operated out of the metal enclosure without extra cooling.

Key Specifications

Bandwidth 300 MHz (Limit: 20, 100, Full)
Rise time 1.2 ns (Repeat on, 16×averaging)
Sampling rate 500 MSa/s each channel with simultaneous acquisition
Sampling type Real time: 100 ns/Div and slower, Equivalent time 50 ns/Div and faster
Single event bandwidth 200 MHz
Deflection 2 mV/div to 5 V/div in 1-2-5 sequence
Resolution 8 bit
Record length 1024 samples
Auto scale factor On-Screen Readout indicates probe tip deflection factors for ×1, ×10, ×100 and ×1000 probes
Input impedance 1 MΩ // 15 pF or 50Ω
Sweep speeds 2 ns/div to 5 s/div in 1-2-5 sequence (Modes A, A Intensified and B)
Auto measure Simultaneously measures up to four parameters on one or more displayed waveforms, updated at 3 Hz intervals or display a snapshot of 20 parameters of waveform target
Acquisition modes Normal, Envelope (glitch capture), Average
Display modes CH1, CH2, invert, add, multiply, X-Y
Cursors Volts, Time, Volts At Time, 1/Time, Slope
Functions A Mode - Auto Level, Auto/Roll, Normal and Single Seq; B Mode - Trigger After Delay, Runs After Delay, 1K Record Length and more
Interface GPIB
Probes Two passive P6137 400 MHz ×10 voltage probes, 1.3 m
Power 90 to 132 VAC or 80 to 250 VAC, 48 to 440 Hz; 160 W
Features
  • Autoprobe Function With P6137 Probe
  • 300 MHz X-Y bandwidth at probe tip
  • Automatic measurements
  • extensive triggering capabilities
  • Printer/Plotter Output
  • On-screen HELP text describing every front-panel control
Options

Links

Internals

The 2440 employs several processors − an MC68B09 main CPU controls the instrument, a custom 16-bit waveform processor performs signal computations, and an MC6805 microcontroller handles the front panel interface. The GPIB Interface is implemented with a TMS9914 controller.

The power supply consists of a buck-type pre-regulator followed by a push-pull inverter and linear post-regulators (except for the +5 V digital supply rail).

CRT is a 154-0850-01.

Pictures

Components

Some Parts Used in the 2440

Part Part Number(s) Class Description Used in
148-0140-00 148-0140-00 Discrete component miniature bi-stable relay actuator 2424L • 2430 • 2431L • 2432 • 2439 • 2440 • 119-1445-02
154-0850-01 154-0850-00 • 154-0850-01 CRT CRT 2424L • 2430 • 2430A • 2431L • 2432 • 2439 • 2440 • 2445 • 2465 • 2465A • 2465B
155-0242-00 155-0242-00 • 155-0242-01 Hybrid integrated circuit Z-axis amplifier and autofocus 2215 • 2252 • 2440 • 2445 • 2445B • 2465 • 2465B • 2467B
155-0294-00 155-0294-00 • 155-0294-01 Monolithic integrated circuit Z-axis amplifier 2424L • 2440
165-2273-00 165-2273-00 Hybrid integrated circuit peak detector 2432 • 2432A • 2440
Motorola 6809 156-1494-00 • 156-1494-01 Monolithic integrated circuit 8-bit microprocessor 2424L • 2440 • 7D20 • DM5120 • DM5520
TMS9914 156-1444-00 • 156-1444-01 Monolithic integrated circuit GPIB controller 2221 • 2230 • 2424L • 2440 • 4052A • 4054A • 021-0374-00 • 067-1137-99 • DC5009 • DC5010 • DM5010 • DM5120 • DM5520 • MI5010 • SG5010 • SG5030 • SI5010 • PS5004 • PS5010
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