14-bit, 800-MSPS digitizer solution

Texas Instruments introduced an evaluation module (EVM) that combines TI's 14-bit analog-to-digital converters (ADCs) in an interleaved fashion with a Xilinx Virtex-5 FPGA to create a high-speed digitizer solution. The FPGA comes pre-installed with SP Devices' proprietary time-interleaving technology to eliminate interleaving spurs, which enhances performance and facilitates rapid system-level evaluation for wireless communications, military, test and measurement applications. The ADS5474ADX-EVM incorporates two of TI's ADS5474 ADCs, a Xilinx Virtex- 5 FPGA and SP Devices' proprietary time-interleaving technology to deliver an 800-MSPS ADC solution.

The SP Devices' software continuously monitors the system and removes ADC gain, clocking and temperature mismatches to reduce the interleaving spurs below the ADC harmonic spurs. By reducing the interleaving spurs, the software increases spurious free dynamic range (SFDR) from 45.78 dBc to 86.44 dBc for a 70-MHz input signal. Pricing for the EVM is $1,999.