AD9674

Data Sheet Octal Ultrasound Analog Front End AD9674 FEATURES 8 channels of LNA, VGA, AAF, ADC, and digital RF decimator Low power: 150 mW per channel, TGC mode, 40 MSPS; 62.5 mW per channel, CW mode; <30 mW in power-down Time gain compensation (TGC) channel input referred noise: 0.82 nV/√Hz, maximum gain Flexible power-down modes Fast recovery from low power standby mode: <2 μs Low noise preamplifier (LNA) Input referred noise voltage: 0.78 nV/√Hz, gain = 21.6 dB Programmable gain: 15.6 dB/17.9 dB/21.6 dB 0.1 dB compression: 1.00 V p-p/ 0.75 V p-p/0.45 V p-p Flexible active input impedance matching Variable gain amplifier (VGA) Attenuator range: 45 dB, linear in dB gain control Postamplifier gain (PGA): 21 dB/24 dB/27 dB/30 dB Antialiasing filter (AAF) Programmable second-order low-pass filter (LPF) from 8 MHz to 18 MHz or 13.5 MHz to 30 MHz and high-pass filter (HPF) Analog-to-digital converter (ADC) Signal-to-noise ratio (SNR): 75 dB, 14 bits up to 125 MSPS Configurable serial...