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Internet of Things


Fast PCIe digitizers get 8 additional digital inputs


High-speed digitizers acquire analog and digital signals simultaneously S


pectrum Instrumentation has announced a new digital input option (M4i.44xx-DigSMA) for its popular high-speed and high- resolution series of PCIe digitizers. The option consists of an additional module that sits beside the existing digitizer card to provide 8 additional digital input lines. The digital input module shares a common clock and trigger with the base card so that both the digital and analog inputs are fully synchronous. This makes the combination ideal for a wide variety of mixed signal testing applications. The option is available for all digitizer models of the “44”-series with up to 500 MS/s and two or four analog inputs. More analog channels can also be acquired by linking up to eight digitizers together with Spectrum’s unique Star-Hub clock and trigger distribution system.


Match the digitizer to your application


CIE OCT20 MIDAS:Layout 1 14/10/2020 13:18 Page 1


The Spectrum M4i.44xx series of PCIe digitizer cards consists of eight different models. Users can select from versions that have either two or four analog channels and sampling rates of 180 or 250 MS/s, with 16-bit resolution, or higher speeds of 400 or 500 MS/s, with 14-bit resolution. The digitizer cards of the “44” series are fully equipped with extensive analog signal conditioning (6 input ranges, selectable input impedance, offset, etc.) and advanced triggering capabilities. The acquired data can be stored in a generous 2 GSamples of on-board memory or transferred to a PC in a variety of memory efficient read-out modes, including FIFO streaming, at rates up to 3.4 GB/s.


The new M4i.44xx-DigSMA digital input option has a separate PCIe faceplate, occupying an additional PCIe slot, with 8x SMA type connector. Designed for versatility, each input has an impedance of 10 kOhms (to 3.3 V). This allows the inputs to handle 3.3 V LVTTL signals with input voltage levels between -0.5 V and +4.0 V. The digital input bandwidth is 125 MHz and software selection enables both synchronous and asynchronous acquisition modes. spectrum-instrumentation.com


About Spectrum Instrumentation Spectrum Instrumentation, founded in 1989, uses modular design to create a wide range of digitizers and generator products as PC-cards (PCIe and PXIe) and stand-alone Ethernet units (LXI). In 30 years, Spectrum has gained customers all around the world, including many A-brand industry-leaders and practically all prestigious universities. The company is headquartered near Hamburg, Germany, and known for its outstanding support that comes directly from the design engineers. More information about Spectrum can be found at www.spectrum-instrumentation.com


www.cieonline.co.uk


Components in Electronics


October 2020 23


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