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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=(?) | ||
* [ | |summary=300 MHz, 500 MS/s 2-ch digital scope | ||
* [ | |designers= | ||
* [ | |manuals= | ||
* [[Media:2430A-2432A-2440-catalog.pdf|2430A/2432A/2440 catalog page ( | * [[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) | |||
{{ROM Images}} | |||
}} | }} | ||
The '''Tektronix 2440''' is a two-channel 300 MHz, 500 MS/s 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. | ||
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<blockquote> | <blockquote> | ||
'''WARNING:'''<br /> | '''WARNING:'''<br /> | ||
Operation of the 2440 | Operation of the 2440, 2439, 2432, 2432A, 2431L, 2430, 2430A and 2424L : 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> | ||
{{BeginSpecs}} | {{BeginSpecs}} | ||
{{Spec | Bandwidth | 300 MHz (Limit: 20, 100, Full) }} | {{Spec | Bandwidth | 300 MHz (Limit: 20, 100, Full) }} | ||
{{Spec | Rise time | 1.2 ns (Repeat on, 16×averaging)}} | |||
{{Spec | Sampling rate | 500 MSa/s each channel with simultaneous acquisition }} | {{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 | Deflection | 2 mV/div to 5 V/div in 1-2-5 sequence }} | ||
{{Spec | Auto | {{Spec | Resolution | 8 bit }} | ||
{{Spec | Input | {{Spec | Record length | 1024 samples }} | ||
{{Spec | Sweep | {{Spec | Auto scale factor | On-Screen Readout indicates probe tip deflection factors for ×1, ×10, ×100 and ×1000 probes }} | ||
{{Spec | Auto | {{Spec | Input impedance| 1 MΩ // 15 pF or 50Ω }} | ||
{{Spec | Acquisition | {{Spec | Sweep speeds | 2 ns/div to 5 s/div in 1-2-5 sequence (Modes A, A Intensified and B)}} | ||
{{Spec | Display | {{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 | 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 | Functions | A Mode - Auto Level, Auto/Roll, Normal and Single Seq; B Mode - Trigger After Delay, Runs After Delay, 1K Record Length and more }} | ||
| Line 53: | Line 66: | ||
==Links== | ==Links== | ||
* [https://hohlerde.org/rauch/en/elektronik/geraete/tek2440/ Tektronix 2440 internals & repair @ hohlerde.org] | * [https://hohlerde.org/rauch/en/elektronik/geraete/tek2440/ Tektronix 2440 internals & repair @ hohlerde.org] | ||
{{Documents|Link=2440}} | |||
{{PatentLinks|2440}} | |||
==Internals== | ==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 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). | 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). | ||
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2440 1B.jpg | 2440 1B.jpg | ||
</gallery> | </gallery> | ||
==Components== | |||
{{Parts|2440}} | |||
[[Category:2400 series scopes]] | [[Category:2400 series scopes]] | ||
Revision as of 13:26, 2 September 2024
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, 2439, 2432, 2432A, 2431L, 2430, 2430A and 2424L : 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 |
|
| Options |
|
Links
Documents Referencing 2440
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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.
