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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=(?)  
|summary=300 MHz, 500 MS/s 2-ch digital scope  
|designers=
|manuals=
* [http://w140.com/tek_2440_service.pdf Tektronix 2440 Manual (complete, B014064 and below) (PDF, OCR)]
* [http://w140.com/tek_2440_service.pdf Tektronix 2440 Manual (complete, B014064 and below) (PDF, OCR)]
* [http://w140.com/tek_2440_programmer_man.pdf Tektronix 2440 Programmer Manual (PDF, OCR)]
* [http://w140.com/tek_2440_programmer_man.pdf Tektronix 2440 Programmer Manual (PDF, OCR)]
* [http://w140.com/tek_2440.pdf Tektronix 2440 Manual (without schematics) (PDF)]
* [http://w140.com/tek_2440.pdf Tektronix 2440 Manual (without schematics) (PDF)]
* [[Media:Tek-2430A-2432A-2440-catalog.pdf|2430A/2432A/2440 catalog page (PDF)]]
* [[Media:2430A-2432A-2440-catalog.pdf|2430A/2432A/2440 catalog page (PDF, OCR)]]
* [[Media:2430A-2432A-2440-catalog.pdf|2430A/2432A/2440 catalog page (PDF, 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>
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{{BeginSpecs}}
{{BeginSpecs}}
{{Spec | Bandwidth | 300 MHz, Limit: 20, 100, Full }}
{{Spec | Bandwidth | 300 MHz (Limit: 20, 100, Full) }}
{{Spec | Deflection| Two Channels With Simultaneous Acquisition with sampling rate: 500MSa/s. CH 1&2: 2mV/div to 5V/div in 1-2-5 sequence }}
{{Spec | Sampling rate | 500 MSa/s each channel with simultaneous acquisition }}
{{Spec | Auto Scale Factor | On-Screen Readout indicates probe tip deflection factors for 1X, 10X, 100X and 1000X probes }}
{{Spec | Deflection | 2 mV/div to 5 V/div in 1-2-5 sequence }}
{{Spec | Input Impedance| 1M, 15pF }}
{{Spec | Auto scale factor | On-Screen Readout indicates probe tip deflection factors for ×1, ×10, ×100 and ×1000 probes }}
{{Spec | Sweep Speeds| Modes A, A Intensified and B :2ns/div to 5s/div in 1-2-5 sequence }}
{{Spec | Input impedance| 1 MΩ // 15 pF }}
{{Spec | Auto Measure| Simultaneously measures up to four parameters on one or more displayed waveforms, updated a 3hz intervals or display a snapshot of 20 parameters of waveform target }}
{{Spec | Sweep speeds | 2 ns/div to 5 s/div in 1-2-5 sequence (Modes A, A Intensified and B)}}
{{Spec | Acquisition Modes| Normal, Envelope (glitch capture), Average }}
{{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 | Display Modes| CH1, CH2, invert, add, multiply, X-Y }}
{{Spec | Acquisition modes| Normal, Envelope (glitch capture), Average }}
{{Spec | Cursors| Volts, Time, Volts At Time, 1/Time, Slope }}
{{Spec | Display modes| CH1, CH2, invert, add, multiply, X-Y }}
{{Spec | Functions| A Mode - Auto Level, Auto/Roll, Normal and Single Seq, B Mode - Trigger After Delay, Runs After Delay and many more too long to list here }}
{{Spec | Cursors   | Volts, Time, Volts At Time, 1/Time, Slope }}
{{Spec | Interface| GPIB }}
{{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 | Probes| Two Passive Voltage 10X 1.3m [[P6137 (400 MHz)]] Probes }}
{{Spec | Interface | GPIB }}
{{Spec | Power| 160 W, 115vac: 90 to 132vac, 230vac: 80 to 250vac, 48 to 440hz }}
{{Spec | Probes   | Two passive [[P6137]] 400 MHz ×10 voltage probes, 1.3 m }}
{{EndSpecs}}
{{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  |
'''Options'''
* 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==
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Tek 2440 5.jpg
Tek 2440 5.jpg
Tek 2440 rear2.jpg
Tek 2440 rear2.jpg
2440 1A.jpg
2440 1B.jpg
</gallery>
</gallery>
{{CRTs|2440}}
{{Custom ICs|2440}}


[[Category:2400 series scopes]]
[[Category:2400 series scopes]]

Revision as of 11:40, 18 April 2022

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 (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.

Key Specifications

Bandwidth 300 MHz (Limit: 20, 100, Full)
Sampling rate 500 MSa/s each channel with simultaneous acquisition
Deflection 2 mV/div to 5 V/div in 1-2-5 sequence
Auto scale factor On-Screen Readout indicates probe tip deflection factors for ×1, ×10, ×100 and ×1000 probes
Input impedance 1 MΩ // 15 pF
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


CRTs used in the 2440

Page Part nos Description Designers Used in
154-0850-01 154-0850-00 154-0850-01 CRT 2424L 2430 2430A 2431L 2432 2439 2440 2445 2465 2465A 2465B

Custom ICs used in the 2440

Page Model Part nos Description Designers Used in
155-0242-00 155-0242-xx 155-0242-00 155-0242-01 Z-axis amplifier and autofocus Mike Metcalf 2215 2252 2440 2445 2445B 2465 2465B 2467B
155-0294-00 155-0294-0x 155-0294-00 155-0294-01 Z-axis amplifier 2424L 2440
165-2273-00 165-2273-00 165-2273-00 peak detector 2432 2432A 2440