Circuit Note CN-0227 is a reference circuit designed and built by Analog Devices for quick and easy system integration to help solve today’s analog, mixed-signal, and RF design challenges. The circuit has a 16-bit, 250 MSPS sampling rate and provides high performance for wideband receiver applications.
The document presents Circuit Note CN-0227, which details a 16-bit, 250 MSPS wideband receiver front end. The design utilizes the ADL5562 ultralow distortion RF/IF differential amplifier and the AD9467 analog-to-digital converter. A third-order Butterworth antialiasing filter is optimized for this specific combination to minimize insertion loss (1.8 dB) while achieving a total bandwidth of 152 MHz.
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.
The overall circuit has a pass band flatness of 1 dB.