GENERAL DESCRIPTION
The AD9257 is an octal, 14-bit, 40 MSPS and 65 MSPS analogto-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 65 MSPS and is optimized for outstanding dynamic performance and low power in applications where a small package size is critical.

FEATURES
   Low power: 55 mW per channel at 65 MSPS with scalable
      power options
   SNR = 75.5 dB (to Nyquist)
   SFDR = 91.6 dBc (to Nyquist)
   DNL = ±0.6 LSB (typical), INL = ±1.1 LSB (typical)
   Serial LVDS (ANSI-644, default)
      Low power, reduced signal option (similar to IEEE 1596.3)
   Data and frame clock outputs
   650 MHz full power analog bandwidth
   2 V p-p input voltage range
   1.8 V supply operation
   Serial port control
      Full chip and individual channel power-down modes
      Flexible bit orientation
      Built-in and custom digital test pattern generation
      Programmable clock and data alignment
      Programmable output resolution
      Standby mode
  
APPLICATIONS
   Medical imaging and nondestructive ultrasound
   Portable ultrasound and digital beam-forming systems
   Quadrature radio receivers
   Diversity radio receivers
   Optical networking
   Test equipment