SigOFIT attenuation tips

The SigOFIT series from Micsig comprises optically isolated probes that have been specially developed for the precise measurement of high-frequency and high-voltage differential signals in environments with a high common-mode voltage component. A central function of the SigOFIT series is the exchangeable attenuation tips, which are attached to the electrical-optical converter (E-O converter) to adapt the signal voltage to the measuring range of the probe and prevent overloads.

A particular highlight of the SigOFIT probes is the gain function, which can be used to amplify signals by a factor of 10. This means that all attenuation probes have two attenuation ranges, such as the OP20 attenuation probe, which offers 20X and 2X attenuation (with gain / 20dB). However, it is important to note that when using the gain function, not only the desired signal but also any interference and noise can be amplified.

The SigOFIT series attenuator tips offer different attenuation ratios, ranging from 10:1 to 10,000:1 depending on the model. These attenuation ratios allow users to optimise the probe for a wide range of voltage inputs while ensuring the accuracy and safety of measurements. Selecting the correct attenuation tip is critical to ensure that the E-O converter is not overloaded and to ensure optimum signal quality.

The SigOFIT attenuation tips are characterised by their high input impedance and low capacitance, resulting in minimal load on the measurement circuit. This is particularly important when measuring sensitive circuits, where additional loading could distort the measurement results.

Overall, the SigOFIT series attenuator tips offer a flexible and customisable solution for accurate and safe measurement in complex high-frequency and high-voltage environments. They are instrumental in maximising the performance and versatility of SigOFIT probes by enabling precise adaptation to different measurement requirements.