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General purpose digitizers offer 125MS/s sampling rates

General purpose digitizers offer 125MS/s sampling rates

New Products |
By eeNews Europe



The increased sampling rate, together with higher overall bandwidth, enables the new cards to capture a wider range of electronic signals. It makes them suitable for use in applications where signals in the DC to 50 MHz frequency range need to be acquired and analyzed with speed and accuracy. Based on the latest 16-bit analog to digital (ADC) technology, the new M2p-596x series includes models that provide 1, 2, 4 or 8 input channels. Multi-channel models each have their own ADC and signal conditioning circuitry to allow fully synchronous acquisitions on all the inputs. Importantly, the high-resolution 16-bit ADCs deliver sixteen times more resolution than digitizers using older 12-bit technology and 256 times more resolution than what is available from digital scopes that commonly use 8-bit ADCs. The extra resolution translates directly into improved measurement capabilities and superior dynamic performance. It delivers a higher Signal-to-Noise Ratio (SNR), better Spurious Free Dynamic Range (SFDR) and less distortion than 12- or 14-bit products. 

The complete product has been packed into a half-length PCIe card, yet it still offers a full set of digitizer features. Each channel has its own programmable input amplifier with ranges between ±200 mV and ±10 V, programmable input offset for unipolar measurements, programmable input termination of 50 Ω and 1 MΩ and an integrated calibration circuit. Models are available with up to 8 single-ended and up to 4 differential channels. The units come with 1 GByte of on-board memory and a number of intelligent acquisition modes, such as multiple recording, gated sampling or ABA (the combination of fast and slow continuous acquisitions).

Incorporated into the digitizers is a PCIe x4 lane interface that enables lightning fast, data streaming at rates of more than 600 MByte/s – or more than 80 MS/s continuous streaming for 4 channels. For high-density, multi-channel acquisitions, up to 16 digitizer cards can be fully synchronized using Spectrum’s Star-Hub technology.

Spectrum Instrumentation – https://spectrum-instrumentation.com

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