Analog and Digital The PM 3350 is the answer to many DSO measurement requirements, offering a combination of the best of real-time and digital storage oscilloscope technology. PM 3350 is designed as a high power digital storage scope for capture and analysis of single events and repetitive signals. It also has real-time capabilities that are needed or convenient in some applications. The PM 3350 is not simply an analog scope with add-on digital features but is a fully implemented DSO with real-time capability. The PM 3350 storage benchmark is a very high maximum 100 MSamples/s sampling rate for each channel simultaneously. This very high sampling frequency offers the capability of storing fast signals with excellent resolution. The maximum single event resolution is 10 ns. Analog Shift Register PM 3350 uses a P2CCD (or profiled peristali-tic charge coupled device), a solid state combination of a fast track-and-hold input circuit and an analog shift register. Momentary values of input signals in analog samples are captured with intervals as short as 10 ns (100 Megasamples/second clock). After triggering these samples are presented to an accurate, successive approximation ADC at a much slower 100 kilosamples/second. Digitizing is thus internally a low frequency operation, giving high resolution, yet not sacrificing the very high data capture rate of 100 Megasamples/sec. This means that single shot events can be captured and displayed up to a capture bandwidth of over 20 MHz, such as in destructive testing or power device switching transients. Indeed, the fast sample rate of the PM 3350 brings an unparalled break-through in DSO performance in this price range.