GENERAL DESCRIPTION
The AD9276 is designed for low cost, low power, small size, and ease of use. It contains eight channels of a variable gain amplifier (VGA) with a low noise preamplifier (LNA); an antialiasing filter (AAF); a 12-bit, 10 MSPS to 80 MSPS analog-to-digital converter (ADC); and an I/Q demodulator with programmable phase rotation.

FEATURES
    8 channels of LNA, VGA, AAF, ADC, and I/Q demodulator
    Low noise preamplifier (LNA)
        Input-referred noise: 0.75 nV/√Hz typical at 5 MHz (gain = 21.3 dB)
        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
        Postamp gain: 21 dB/24 dB/27 dB/30 dB
        Linear-in-dB gain control
    Antialiasing filter (AAF)
        Programmable second-order LPF from 8 MHz to 18 MHz
        Programmable 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
    CW mode I/Q demodulator
        Individual programmable phase rotation
        Output dynamic range per channel >160 dBFS/√Hz
    Low power: 195 mW per channel at 12 bits/40 MSPS (TGC), 94 mW per channel for CW Doppler
    Flexible power-down modes
    Overload recovery in <10 ns
    Fast recovery from low power standby mode: <2 μs
    100-lead TQFP_EP

APPLICATIONS
    Medical imaging/ultrasound
    Automotive radar