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Применения > > High Performance, 16-Bit, 250 MSPS Wideband Receiver with Antialiasing Filter

High Performance, 16-Bit, 250 MSPS Wideband Receiver with Antialiasing Filter (CN0227)

The circuit, shown in Figure 1, is a wideband receiver front end based on the the ADL5562 ultralow noise differential amplifier driver and the AD9467 16-bit, 250 MSPS analog-to-digital converter.


The third-order Butterworth antialiasing filter is optimized based on the performance and interface requirements of the amplifier and ADC. The total insertion loss due to the filter network and other components is only 1.8 dB.


The overall circuit has a bandwidth of 152 MHz with a pass band flatness of 1 dB. The SNR and SFDR measured with a 120 MHz analog input are 72.6 dBFS and 82.2 dBc, respectively.



Figure 1. 16-Bit, 250 MSPS Wideband Receiver Front End (Simplified Schematic: All Connections and Decoupling Not Shown) Gains, Losses, and Signal Levels Measured Values at 10 MHz

Возможности

  • 16-Bit, 250MSPS Wideband Reciever
  • Antialiasing Filter
  • 72dB SNR @ 120MHz Input
  • 82dB SFDR @ 120MHz Input

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High Performance, 16-Bit, 250 MSPS Wideband Receiver with Antialiasing Filter  CN0227

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