12-Bit, 2GSPS Reference Design

Using 4 Interleaved ISLA112P50 12-bit, 500 MSPS ADCs

Description

By interleaving Intersil's low power, high sample rate ADCs, it is possible to achieve a combination of ultra-high sample rate and very high dynamic range that is not available in today’s stand-alone ADCs.

This reference design demonstrates the performance attainable by combining Intersil's ADC technology and SP Devices interleaving algorithms. In this design, 4 ISLA112P50 12-bit, 500 MSPS analog-to-digital converters are interleaved to sample at a rate of 2.0 GSPS. At this sampling rate, the reference design provides over 6dB more SNR and 13dB better SFDR than the best alternative stand-alone ADC.

Key Features

  • Collaboration of Intersil and SP Devices
  • Demonstrates 4-way Interleaving of Intersil 500MSPS ISLA112P50s
    • Sample Rate: 2.0 GSPS
    • Resolution: 12 Bits
  • Interleave Correction Details
    • SP Devices’s ADX4 provides real-time, digital, FPGA based digital interleave correction of four ISLA112P50s Performance
  • Performance
    • SNR = 65.5 dBfs @ Fin = 190MHz, a 6dB improvement over current best standalone 2GSPS ADCs
    • SFDR = 82 dBc @ Fin = 190MHz, a 13dB SFDR improvement over current best standalone 2GSPS ADCS

Applications

  • Radar and Electronic/Signal Intelligence
  • Broadband Communications
  • High-Performance Data Acquisition

Intersil's 2GSPS Reference Design

 

Related Products

ISLA112P50

Tool Information

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Disclaimer: THIS MATERIAL IS PROVIDED “AS-IS” FOR EVALUATION PURPOSES ONLY. RENESAS ELECTRONICS CORPORATION AND ITS SUBSIDIARIES (collectively, “Renesas”) DISCLAIM ALL WARRANTIES, INCLUDING WITHOUT LIMITATION, FITNESS FOR A PARTICULAR PURPOSE AND MERCHANTABILITY. Renesas provides evaluation platforms and design proposals to help our customers to develop products. However, factors beyond Renesas' control, including without limitation, component variations, temperature changes and PCB layout, could significantly affect the product performance. It is the user’s responsibility to verify the actual circuit performance.