Difference between revisions of "2440"

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image=2440_1.jpg |
 
image=2440_1.jpg |
 
caption=Tektronix 2440  |
 
caption=Tektronix 2440  |
introduced=1988 |
+
introduced=1988 |  
 
discontinued=(?) |
 
discontinued=(?) |
 
summary=300 MHz, 500 MS/s 2-ch digital scope |
 
summary=300 MHz, 500 MS/s 2-ch digital scope |
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* [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 | 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 | Acquisition Modes| Normal, Envelope (glitch capture), Average }}
 
{{Spec | Display Modes| CH1, CH2, invert, add, multiply, X-Y }}
 
{{Spec | Display Modes| CH1, CH2, invert, add, multiply, X-Y }}
{{Spec | Cursors| Volts, Time, Volts At Time, 1/Time, Slope }}
+
{{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 many more too long to list here }}
+
{{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 | Interface | GPIB }}
{{Spec | Probes| Two Passive Voltage 10X 1.3m [[P6137]](400 MHz) Probes }}
+
{{Spec | Probes   | Two passive [[P6137]] 400 MHz ×10 voltage probes, 1.3 m }}
{{Spec | Power| 160 W, 115vac: 90 to 132vac, 230vac: 80 to 250vac, 48 to 440hz }}
+
{{Spec | Power     | 90 to 132 V<sub>AC</sub> or 80 to 250 V<sub>AC</sub>, 48 to 440 Hz; 160 W }}
{{EndSpecs}}
+
{{Spec | Features  |
 
+
* Autoprobe Function With [[P6137]] Probe
'''Options'''
+
* 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 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==
 
==Pictures==

Latest revision as of 13:34, 12 March 2019

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.

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