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2 Ch, 1 GS/s,FlexRes USB Oscilloscope
- Flexible Hardware Resolution: 8/12/14/15/16 bits
- 60 MHz analog bandwidth
- 1 GS/s sampling at 8 bit resolution
- 500 MS/s sampling at 12 bit resolution
- 62.5 MS/s sampling at 16 bit resolution
- 16 MS buffer memory
- 100,000 waveforms per second
- Serial decoding and mask testing as standard
- Windows, Linux and Mac software
FlexRes® flexible resolution
Most digital oscilloscopes gain their high sampling rates by interleaving multiple 8-bit ADCs. Despite careful design, the interleaving process introduces errors that always make the dynamic performance worse than the performance of the individual ADC cores.
The PicoScope 5000 Series scopes have a significantly different architecture in which multiple high-resolution ADCs can be applied to the input channels in different time-interleaved and parallel combinations to boost either the sampling rate to 1 GS/s at 8 bits or the resolution to 16 bits at 62.5 MS/s.
In time-interleaved mode, the ADCs are interleaved to provide 1 GS/s at 8 bits (see diagram). Interleaving reduces the performance of the ADCs, but the result (60 dB SFDR) is still much better than oscilloscopes that interleave 8-bit ADCs. This mode can also provide 500 MS/s at 12 bits resolution.
In parallel mode, multiple ADCs are sampled in phase on each channel to increase the resolution, revealing every detail of the signal in a crystal-clear display. Sampling in parallel with multiple ADCs and combining the output reduces noise and also both the integral and differential nonlinearity, providing outstanding single shot dynamic performance without loss of bandwidth or need of a repetitive signal
Using parallel mode, resolution is increased to 14 bits at 125 MS/s per channel (> 70 dB SFDR – see diagram). If only two channels are required then resolution can be increased to 15 bits, and in single-channel mode all the ADCs are combined to give a 16-bit mode at 62.5 MS/s.
The software gives the choice of selecting the resolution or leaving the scope in “auto resolution” mode where the optimal resolution is used for the chosen settings.
FFT spectrum analyzer
The spectrum view plots amplitude against frequency and is ideal for finding noise, crosstalk or distortion in signals. The spectrum analyzer in PicoScope is of the Fast Fourier Transform (FFT) type which, unlike a traditional swept spectrum analyzer, can display the spectrum of a single, non-repeating waveform.
A full range of settings gives you control over the number of spectrum bands (FFT bins), window types, scaling (including log/log) and display modes (instantaneous, average, or peak-hold).
You can display multiple spectrum views alongside oscilloscope views of the same data. A comprehensive set of automatic frequency-domain measurements can be added to the display, including THD, THD+N, SNR, SINAD and IMD. A mask limit test can be applied to a spectrum and you can even use the AWG and spectrum mode together to perform swept scalar network analysis.
Software Development Kit - write your own apps
The software development kit (SDK) allows you to write your own software and includes drivers for Microsoft Windows, Apple Mac (OS X) and Linux (including Raspberry Pi and BeagleBone).
Example code shows how to interface to third-party software packages such as Microsoft Excel, National Instruments LabVIEW and MathWorks MATLAB.
There is also an active community of PicoScope users who share code and applications on the Pico forum and PicoApps section of the picotech.com web site. The Frequency Response Analyzer shown opposite is one of the most popular 3rd party applications.
|Number of input Channels||2|
|A/D Resolution||Selectable: 8, 12, 14, 15, 16 bits|
|Max Sampling||1 GS/s|
|Band Width||60 MHz|
|Memory Depth||16 MS|
|Mixed Signal Oscilloscope||No|
|Waveform Generation||Function Generation|