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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.
*'''Features:'''<br />
*500 MS/s Digitizing
*300MHz Bandwidth
*2 ns Glitch Capture
*Autoprobe Function With [[P6137]] Probe
*300MHz X-Y Bandwidth At Probe Tip
*Automatic Measurements
*Extensive Triggering Capabilities
*Printer/Plotter Output
*On-screen HELP Text Describing Every Front-Panel Control


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 Each. 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
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