Oscilloscope probe measures voltages in the millivolt range

The new R&S RT-ZP1X passive 1:1 probe from Rohde & Schwarz broadens the application range of its R&S RTO and R&S RTE series oscilloscopes. Both the probe and the oscilloscopes’ frontend are extremely low noise, making this combination suitable measuring the smallest of signals down to 1 mV/div, e.g. for power integrity measurements on integrated circuits and components.

By integrating and increasing number of functional units into the smallest of spaces, developers are able to minimise power consumption. This is where power integrity measurements become indispensable. Developers and service engineers investigating the noise characteristics of components in these types of circuits must measure signals in the millivolt range. An appropriately sensitive, low-noise probe is essential for obtaining meaningful measurement results.

The R&S RT-ZP1X passive 1:1 probe is precisely matched to the R&S RTE (up to 2 GHz) and the R&S RTO1000/2000 (up to 4 GHz) oscilloscopes. In combination with the R&S RTE, this solution provides one of the best price/performance ratio on the market for power integrity measurements. The oscilloscopes’ low-noise frontend keeps the noise floor under 650 microAVpp (1 mV/div and 200 MHz bandwidth), even for a 1 MOhm input impedance. Other oscilloscopes achieve such values only for a 50Ohm input impedance.

With an acquisition rate of up to 1 million waveforms per second, users quickly obtain meaningful measurement results, complete with histogram and all signal components. In the zoom view in 16bit high definition (HD) mode, even the smallest of signal details can be analysed and triggered.

To search for coupled interference signals, the oscilloscopes offer a hardware-based fast Fourier transform (FFT) that delivers the spectrum display practically in realtime. This makes it possible, for example, to identify 10MHz signals coupled to an adjacent clock line at a glance. Another unique feature is the zone trigger that can be used to graphically separate events such as out-of-limit conditions in the time and frequency domain.

The probe is also suitable for the R&S RTM (up to 1 GHz) and R&S HMO (70MHz to 500MHz) oscilloscopes.

http://www.rohde-schwarz.com

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