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{{Oscilloscope Sidebar| | {{Oscilloscope Sidebar | ||
|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= | ||
|manuals= | |||
* [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.pdf Tektronix 2440 Manual (without schematics) (PDF)] | * [http://w140.com/tek_2440.pdf Tektronix 2440 Manual (without schematics) (PDF)] | ||
* [[Media: | * [[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. | ||
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''' | <blockquote> | ||
Operation of the 2440 (and 2432 and 2430): | '''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. | |||
</blockquote> | |||
{{BeginSpecs}} | |||
{{Spec | Bandwidth | 300 MHz (Limit: 20, 100, Full) }} | |||
{{Spec | Sampling rate | 500 MSa/s each channel with simultaneous acquisition }} | |||
{{Spec | Deflection | 2 mV/div to 5 V/div in 1-2-5 sequence }} | |||
{{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 }} | |||
{{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]]) | |||
* 05 - Video Waveform Measurement System | |||
* 11 - Two [[LEMO S-series connector|probe-power connectors]] on the rear panel | |||
}} | |||
{{EndSpecs}} | |||
==Links== | |||
* [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== | |||
<gallery> | <gallery> | ||
Tek 2440 1.jpg | Tek 2440 1.jpg | ||
| Line 30: | Line 71: | ||
Tek 2440 4.jpg | Tek 2440 4.jpg | ||
Tek 2440 5.jpg | Tek 2440 5.jpg | ||
Tek 2440 rear2.jpg | |||
2440 1A.jpg | |||
2440 1B.jpg | |||
</gallery> | </gallery> | ||
[[Category: | {{CRTs|2440}} | ||
{{Custom ICs|2440}} | |||
[[Category:2400 series scopes]] | |||
[[Category:Digital storage scopes]] | [[Category:Digital storage scopes]] | ||
[[Category:GPIB interface]] | [[Category:GPIB interface]] | ||