GENERAL DESCRIPTION
The AD9238 is a dual, 3 V, 12-bit, 20 MSPS/40 MSPS/65 MSPS analog-to-digital converter (ADC). It features dual high performance sample-and-hold amplifiers (SHAs) and an integrated voltage reference. The AD9238 uses a multistage differential pipelined architecture with output error correction logic to provide 12-bit accuracy and to guarantee no missing codes over the full operating temperature range at up to 65 MSPS data rates. The wide bandwidth, differential SHA allows for a variety of user-selectable input ranges and offsets, including single-ended applications.

FEATURES
   Integrated dual 12-bit ADC
   Single 3 V supply operation (2.7 V to 3.6 V)
   SNR = 70 dB (to Nyquist, AD9238-65)
   SFDR = 80.5 dBc (to Nyquist, AD9238-65)
   Low power: 300 mW/channel at 65 MSPS
   Differential input with 500 MHz, 3 dB bandwidth
   Exceptional crosstalk immunity > 85 dB
   Flexible analog input: 1 V p-p to 2 V p-p range
   Offset binary or twos complement data format
   Clock duty cycle stabilizer
   Output datamux option

APPLICATIONS
   Ultrasound equipment
   Direct conversion or IF sampling receivers
      WB-CDMA, CDMA2000, WiMAX
   Battery-powered instruments
   Hand-held scopemeters
   Low cost, digital oscilloscopes