AD9271

Preliminary Technical Data FEATURES 8 channels of LNA, VGA, AAF, and ADC Low noise preamplifier (LNA) Input-referred noise = 1.2 nV/√Hz @ 7.5 MHz typical SPI-programmable gain = 14 dB/15.6 dB/18 dB Single-ended input; VIN maximum = 400 mV p-p/ 333 mV p-p/250 mV p-p Dual mode, active input impedance match Bandwidth (BW) > 70 MHz Full-scale (FS) output = 2 V p-p diff Variable gain amplifier (VGA) Gain range = −6 dB to +24 dB Linear-in-dB gain control Antialiasing filter (AAF) 3rd-order Butterworth cutoff Programmable from 8 MHz to 18 MHz Analog-to-digital converter (ADC) 12 bits at 10 MSPS to 50 MSPS SNR = 70 dB SFDR = 80 dB Serial LVDS (ANSI-644, IEEE 1596.3 reduced range link) Data and frame clock outputs Includes crosspoint switch to support continuous wave (CW) Doppler Low power, 150 mW/channel at 12 bits/40 MSPS (TGC) 60 mW/channel in CW Doppler Single 1.8 V supply (3.3 V supply for CW Doppler output bias) Flexible power-down modes Overload recovery in