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Digital-cell-based technology supports analog/digital conversion in ASICs, FPGAs

Posted: 23 Jul 2010 ?? ?Print Version ?Bookmark and Share

Keywords:analog/digital converter? IP?


Stellamar LLC has introduced what they call an innovative, digital-cell-based technology for implementing analog/digital converters in standard ASICs and FPGAs. Using their IP, designers can embed a no-missing-code, oversampling ADC yielding 12-bit resolution and 15kHz bandwidth, suitable for applications such as data logging, voice, medical instruments, and low-frequency sensors.

The digital core needs only an LVDS input cell, a digital output cell and a handful of passive external components. The vendor claims their approach reduces time to market and risk significantly, while also decreasing cost and silicon footprint by 50%.SNR at 4kHz is 72 dB and 68 dB at 15kHz. The IP has been built and evaluated with a Xilinx Spartan FPGA, see figure.

- Bill Schweber
EE Times

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