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> 54501A 100 mhz 4 channel digital oscilloscope
54501A 100 mhz 4 channel digital oscilloscope
Bandwidth (-3 dB) Dc-coupled Repetitive dc to 100 MHz
Single-shot dc to 1 MHz Rise Time 3.5 ns
Number of Channels 4 (2+2): Channels 2 and 3 are limited attenuator inputs, optimized for digital signals.
Vertical Sensitivity Range 5 mV/div to 5 V/div (channels 1 and 2)
Maximum Sample Rate 10 MSa/s
Waveform Record Length 501 points (display)
Input C 16 pF nominal Input Coupling ac, dc
Autoscale, auto measurements, Delta V and T measurements.
Pattern trigger , complex trigger
Electronic condition Excellent
I have reconditioned and calibrated this unit. The Unit passes all self tests. It passes and holds calibration.
Cosmetic condition This unit has been cleaned up inside and out. It has some CRT burn-in visible when the power is off. That s typical for these models. When the power is on it is not distracting. On a scale of 1 to 10 this one is a 8+. The chassis is solid and clean.
Warranty Contact me for fair resolution on any problem. 14 days money back if it fails self-test.
Repetitive mode In the repetitive mode the waveform is constructed by triggering and acquiring data on successive repeating events. If the particular signal of interest is repetitive like a system clock, then a very accurate waveform can be constructed from repeated acquisitions.
A sampling technique is used to sample and hold so that the A/D converter has time to convert analog to digital. Data is randomly sampled then converted to digital. A fine interpolator is used to precisely (40 psec or better) measure the time between the samples taken and the analog trigger event. Data can now be placed in a memory buffer precisely positioned in time relative to analog trigger. With successive acquisitions, the buffer is eventually filled. High bandwidth can be achieved with relatively slow less expensive A/D converters.
Real Time / Single Shot mode In this mode, the entire waveform must be captured on a single trigger. Naturally this requires a very high performance FAST A/D converter. (No sample and hold). The fine interpolator is still used to place data precisely relative to the analog trigger event.
This is a 6 bit A/D converter. All the others are 8 bits. (can be improved with averaging)
The 54720A/D is a very high performance separate family of scopes see my write up on this line of scopes. It can achieve up to 8 GSa/s!!!!!
