AD9643

Data Sheet 14-Bit, 170 MSPS/210 MSPS/250 MSPS, 1.8 V Dual Analog-to-Digital Converter (ADC) AD9643 FEATURES SNR = 70.6 dBFS at 185 MHz AIN and 250 MSPS SFDR = 85 dBc at 185 MHz AIN and 250 MSPS −151.6 dBFS/Hz input noise at 185 MHz, −1 dBFS AIN and 250 MSPS Total power consumption: 785 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 IF sampling frequencies of up to 400 MHz 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 95 dB channel isolation/crosstalk Serial port control Energy saving power-down modes APPLICATIONS Communications Diversity radio systems Multimode digital receivers (3G) TD-SCDMA, WiMax, WCDMA, CDMA2000, GSM, EDGE, LTE I/Q demodulation systems Smart antenna systems General-purpose software radios Ultrasound equipment Broadband data applications GENERAL DESCRIPTION The AD...