Cover story
StationMax – in a class of its own
By Boris Adlung, RIGOL Technologies Europe W
hen equipping a development laboratory, there is usually the classic question of
whether a spectrum analyzer or an oscilloscope should be purchased and used for the current development project. On the one hand, a time domain analysis is indispensable and a must for most tasks. However, the desired frequency and bandwidth are usually in such a high range that the conventional oscilloscope alone is not sufficient. On the other hand, signal components and the behavior of some components can only really be visualized in the frequency domain. The disadvantage here is that elementary time domain analyzes can only be carried out to a very limited extent. Many development engineers solve the dilemma by purchasing both devices, which on the one hand requires more space and causes higher costs. On the other hand, what is much more difficult to realize is the synchronization of the measurement results of both measuring devices, which is often absolutely necessary in order to obtain time and frequency domain measurements at a certain point in time. RIGOL’s new high-performance oscilloscope of the DS70000 series offers an ideal solution for various applications especially for research and development. This series is the first device from the StationMax series and is available in two versions with four analog channels and bandwidths of up to 3 GHz or up to 5 GHz. The 5 GHz bandwidth can be achieved with a
06 April 2022
www.electronicsworld.co.uk
maximum of two channels, and when using all four channels there is still a bandwidth of 4 GHz with a sampling rate of max 10 GSa/sec and a memory depth of 1 Gpts per channel. This device contains the extended ASIC chipset developed by RIGOL, which realizes a real-time sampling rate of up to 20 GSa/ sec. With the device it is possible to record up to 2 million signal frames and replay them for extended analyzes. The ASIC chipset consists of two individual chips. The Beta-Phoenics is installed as an analog front-end per channel and combines different functions such as the high stable bandwidth, linear amplification and the implementation of input impedances of 1 MΩ (up to 500 MHz) and 50 Ω. In addition, this chip contains a very fast overvoltage protection, which reacts in the µs range. The second ASIC is installed in front of the analog/
digital converter (ADC) and contains a digital signal processor (DSP). The hardware and software of the DS70000 is designed in such a way that it can be equipped with additional functions in the future. The internal memory and processors can also be expanded. The screen consists of a 15.6 inch touch display and a 3.5 inch operator display and can be changed to the desired position with an automatically adjustable angle of inclination. The main display can be divided into several windows. The results of the respective measurements are shown on the side so as not to disturb the display of the measurement. The new UltraVision III platform
offers a very deep memory of up to 2 gigapoints. With a sampling rate of 20 GSa/sec, for example, a time range of 100 msec can be resolved to a very small value with the zoom function.
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