GENERAL DESCRIPTION
The AD9272 is designed for low cost, low power, small size, and ease of use. It contains eight channels of a low noise preamplifier (LNA) with a variable gain amplifier (VGA), an antialiasing filter (AAF), and a 12-bit, 10 MSPS to 80 MSPS analog-todigital converter (ADC).

FEATURES
   8 channels of LNA, VGA, AAF, and ADC
   Low noise preamplifier (LNA)
      Input-referred noise voltage = 0.75 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 80 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, 195 mW per channel at 12 bits/40 MSPS (TGC)
   120 mW per channel in CW Doppler
   Flexible power-down modes
   Overload recovery in <10 ns
   Fast recovery from low power standby mode, <2 μs
   100-lead TQFP
  
APPLICATIONS
   Medical imaging/ultrasound
   Automotive radar