GENERAL DESCRIPTION
The AD9645 is a dual, 14-bit, 80 MSPS/125 MSPS analog-to-digital converter (ADC) with an on-chip sample-and-hold circuit designed for low cost, low power, small size, and ease of use. The product operates at a conversion rate of up to 125 MSPS and is optimized for outstanding dynamic performance and low power in applications where a small package size is critical.

FEATURES
   1.8 V supply operation
   Low power: 122 mW per channel at 125 MSPS with scalable
      power options
   SNR = 74 dBFS (to Nyquist)
   SFDR = 91 dBc at 70 MHz
   DNL = ±0.65 LSB (typical); INL = ±1.5 LSB (typical)
   Serial LVDS (ANSI-644, default) and low power, reduced
      range option (similar to IEEE 1596.3)
   650 MHz full power analog bandwidth
   2 V p-p input voltage range
   Serial port control
      Full chip and individual channel power-down modes
      Flexible bit orientation
      Built-in and custom digital test pattern generation
      Clock divider
      Programmable output clock and data alignment
      Programmable output resolution
      Standby mode

APPLICATIONS
   Communications
   Diversity radio systems
   Multimode digital receivers
   GSM, EDGE, W-CDMA, LTE, CDMA2000, WiMAX, TD-SCDMA
   I/Q demodulation systems
   Smart antenna systems
   Broadband data applications
   Battery-powered instruments
   Handheld scope meters
   Portable medical imaging and ultrasound
   Radar/LIDAR