2440
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, 2432, 2432A, 2430, and 2430A: 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
Channels | 2 |
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Resolution | 8 bit |
Record length | 1024 samples |
Bandwidth | 300 MHz (Limit: 20, 100, Full) |
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 |
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 |
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Options |
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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
Components
Some Parts Used in the 2440
Part | Part Number(s) | Class | Description | Used in |
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148-0140-00 | 148-0140-00 | Discrete component | miniature bi-stable relay actuator | 2424L • 2430 • 2431L • 2432 • 2439 • 2440 • 119-1445-02 |
154-0850-01 | 154-0850-00 • 154-0850-01 | CRT | CRT | 2424L • 2430 • 2430A • 2431L • 2432 • 2439 • 2440 • 2445 • 2465 • 2465A • 2465B |
155-0242-00 | 155-0242-00 • 155-0242-01 | Hybrid integrated circuit | Z-axis amplifier and autofocus | 2215 • 2252 • 2440 • 2445 • 2445B • 2465 • 2465B • 2467B |
155-0294-00 | 155-0294-00 • 155-0294-01 | Monolithic integrated circuit | Z-axis amplifier | 2424L • 2440 |
165-2273-00 | 165-2273-00 | Hybrid integrated circuit | peak detector | 2432 • 2432A • 2440 |
Motorola 6809 | 156-1494-00 • 156-1494-01 | Monolithic integrated circuit | 8-bit microprocessor | 2424L • 2440 • 7D20 • DM5120 • DM5520 |
TMS9914 | 156-1444-00 • 156-1444-01 | Monolithic integrated circuit | GPIB controller | 2221 • 2230 • 2424L • 2440 • 4052A • 4054A • 021-0374-00 • 067-1137-99 • DC5009 • DC5010 • DM5010 • DM5120 • DM5520 • MI5010 • SG5010 • SG5030 • SI5010 • PS5004 • PS5010 |