GENERAL DESCRIPTION
The AD9634 is a 12-bit, analog-to-digital converter (ADC) with sampling speeds of up to 250 MSPS. The AD9634 is designed to support communications applications where low cost, small size, wide bandwidth, and versatility are desired.

FEATURES
    SNR = 69.7 dBFS at 185 MHz AIN and 250 MSPS
    SFDR = 87 dBc at 185 MHz AIN and 250 MSPS
    −150.6 dBFS/Hz input noise at 185 MHz, −1 dBFS AIN and 250 MSPS
    Total power consumption: 360 mW at 250 MSPS
    1.8 V supply voltages
    LVDS (ANSI-644 levels) outputs
    Integer 1-to-8 input clock divider (625 MHz maximum input)
    Sample rates of up to 250 MSPS
    Internal ADC voltage reference
    Flexible analog input range 1.4 V p-p to 2.0 V p-p (1.75 V p-p nominal)
    ADC clock duty cycle stabilizer
    Serial port control
    Energy-saving power-down modes

APPLICATIONS
    Communications
    Diversity radio systems
    Multimode digital receivers (3G) TD-SCDMA, WiMAX, W-CDMA, CDMA2000, GSM, EDGE, LTE
    I/Q demodulation systems
    Smart antenna systems
    General-purpose software radios
    Ultrasound equipment
    Broadband data applications