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Innovative 2GSPS Digitizer Reference Design Reduces Time to Market for Communications, Radar and Test Applications
MILPITAS, CA, November 04, 2010 – Intersil Corporation (NASDAQ Global Select: ISIL) today introduced the industry's most power-efficient 12-bit, 2 Gigasample/second (GSPS) digitizer reference design, developed to reduce design time for advanced communications, radar and test systems.
Based on Intersil's ISLA112P50 500 Megasample/second (MSPS) converter, the new 2GSPS reference design meets industry requirements for increased sampling speeds, and eliminates artifacts typically caused by interleaved ADCs. Intersil collaborated with SP Devices to develop the new reference design.
The Intersil reference design demonstrates detailed best practices in a known-good system, providing real-time, FPGA-based digital interleave correction of four ISLA112P50 devices. It features significant signal-to-noise and spurious-free dynamic range performance benefits compared with competing 2GSPS ADCs. The signal-to-noise ratio (SNR) is 65.5dB at a 190MHz input frequency, which represents an improvement of 6dB over competing solutions. Since SNR does not degrade significantly with higher input frequencies, this performance advantage is maintained over the entire bandwidth of the digitizer. Spurious free dynamic range (SFDR) is 81.7dBc at a 190MHz input frequency, an improvement of 13dBc. The reference design provides superior SFDR for input frequencies up to 500MHz.
Four 12-Bit 500MSPS ISLA112P50 devices are interleaved to provide 2GSPS. Full power bandwidth is 750MHz, and ADC- and interleave-related power consumption is just 4.1W. For details on the SP Devices evaluation cards, please visit http://www.spdevices.com/index.php/products2/adx4-evm-2000-12.
For information on the Intersil reference design, please visit http://www.intersil.com/converters/ADC_ref_design.asp
About the ISLA112P50
The ISLA112P50 is the latest in Intersil's expanding family of high performance, low-power ADCs. Developed for broadband communications, radar, light detection and ranging (LIDAR) and data acquisition systems, the new converter is built using Intersil's proprietary FemtoCharge® technology on a standard CMOS process.
The converter's dynamic performance and specifications are optimal for targeted applications. Analog input bandwidth is 1.15GHz. Signal-to-noise ratio is 65.8dBFS and SFDR is 80dBc for an input frequency of 190MHz. The device incorporates nap/sleep modes, and digital output data is available in either LVDS or CMOS formats, increasing design flexibility.
About Intersil
Intersil Corporation is a leader in the design and manufacture of high-performance analog, mixed signal and power management semiconductors. The Company's products address some of the fastest growing markets within the communications, computing, consumer and industrial industries. For more information about Intersil or to find out how to become a member of our winning team, visit the Company's web site and career page at www.intersil.com.
Intersil, the Intersil logo and FemtoCharge are trademarks or registered trademarks of Intersil Corporation. All other brands, product names and marks are or may be trademarks or registered trademarks used to identify products or services of their respective owners.
