AD9273_08

Octal LNA/VGA/AAF/ADC and Crosspoint Switch AD9273 FEATURES 8 channels of LNA, VGA, AAF, and ADC Low noise preamplifier (LNA) Input-referred noise voltage = 1.2 nV/√Hz (gain = 21.3 dB) @ 5 MHz typical SPI-programmable gain = 15.6 dB/17.9 dB/21.3 dB Single-ended input; VIN maximum = 733 mV p-p/ 550 mV p-p/367 mV p-p Dual-mode active input impedance matching Bandwidth (BW) > 100 MHz Full-scale (FS) output = 4.4 V p-p differential Variable gain amplifier (VGA) Attenuator range = −42 dB to 0 dB SPI-programmable PGA gain = 21 dB/24 dB/27 dB/30 dB Linear-in-dB gain control Antialiasing filter (AAF) Programmable 2nd-order low-pass filter (LPF) from 8 MHz to 18 MHz Programmable high-pass filter (HPF) Analog-to-digital converter (ADC) 12 bits at 10 MSPS to 50 MSPS SNR = 70 dB SFDR = 75 dB Serial LVDS (ANSI-644, IEEE 1596.3 reduced range link) Data and frame clock outputs Includes an 8 × 8 differential crosspoint switch to support continuous wave (CW) Doppler Low power, 109 mW per channel at 12 bits/40 MSPS (TGC) 70 mW per channel in CW Doppler Flexible power-down modes Overload recovery in