AD9271BSVZ-50 Datasheet PDF - ADI

●GENERAL DESCRIPTION

●The AD9271 is designed for low cost, low power, small size, and ease of use. It contains eight channels of a variable gain amplifier (VGA) with low noise preamplifier (LNA); an antialiasing filter (AAF); and a 12-bit, 10 MSPS to 50 MSPS analog-to-digital converter (ADC).

●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; VINmaximum = 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 <10 ns

●Fast recovery from low power standby mode, <2 μs

●100-pin TQFP