M4i - PCI Express x8 Digitizers | Spectrum

M4i - new PCI Express x8 platform
Spectrum GmbH releases – under the name M4i.445x-x8 – the first card that is based on the new M4i platform with PCI Express x8 Gen2. The M4i.445x-x8 comes with two or four channels and 500 MS/s synchronous sampling speed at 14 bit ADC resolution. Both versions have a signal bandwidth of 250 MHz.

The compact M4i card is already equipped with different acquisition modes like single-shot, streaming (FIFO), segmented (Multiple Recording), gated (Gated Sampling), or the combination of segmented acquisition of fast signals in parallel to slow continuous data recording (ABA mode). All trigger events can be time stamped.

The four (or two) input channels are completely separated and have one monolithic ADC per channel, as well as its own high precision pre-amplifier. Each amplifier can be configured separately by software. Software can select one of six input ranges (±200 mV up to ±10 V), 50 Ohm or 1 MOhm input impedance and AC or DC coupling. Furthermore a bandwidth filter can be activated which suppresses high frequency noise signals.

Up to eight M4i cards can run synchronously in one system. The star-hub module option distributes clock and trigger signals between the cards. The star-hub module can combine all of the trigger sources of all connected cards making it possible to use any trigger source as starting event for the complete system. Using the star-hub a total of 32 channels with 500 MS/s and 14 bit resolution can be acquired simultaneously.

The software package SBench 6 is available for easy operation of the hardware. The software supports all usage modes and settings of the M4i series with comfortable setup dialogues. The software is able to run the cards in oscilloscope mode as well as long time transient recording mode (streaming mode). A special feature of SBench 6 is the segmented view that allows it to display segment based signals together with signals of a second timebase (ABA mode) as well as highly precise timestamps. Besides this SBench 6 has a lot of build-in features for comfortable data analysis and documentation like FFT analysis, a function interpreter, several integrated analysis functions, export into ASCII, Wave, MATLAB, comment functions for signals and display details as well as a comfortable printout function.

Customers who want to program by themselves can use the proven SPCM driver for Windows and Linux, which are included in the delivery. A set of standard programming examples is provided to illustrate the boards main signal capture functions. Extensive support includes Visual C++, Borland C++, Gnu C++, Visual Basic, VB.NET, C#, J# and Delphi code.

A 5-year manufacturer warranty is standard for all Spectrum hardware products. Drivers, software and firmware updates are available free of charge as well as the support given directly by the developer engineers themselves.

Author: Spectrum Instrumentation