AD9244

Features:

On-Chip Reference and Sample-and-Hold
750 MHz Analog Input Bandwidth
SNR > 73 dBc to Nyquist @ 65 MSPS
SFDR > 86 dBc to Nyquist @ 65 MSPS
Differential Nonlinearity Error =
0.7 LSB
Guaranteed No Missing Codes over Full Temperature Range
1 V to 2 V p-p Differential Full-Scale Analog Input Range
Single 5 V Analog Supply, 3.3 V/5 V Driver Supply
Out-of-Range Indicator
Straight Binary or Twos Complement Output Data
Clock Duty Cycle Stabilizer
Output Enable Function
48-Lead LQFP Package




Application

Communications Subsystems (Microcell, Picocell)
Medical and High End Imaging Equipment
Ultrasound Equipment




Pinout






Specifications

AVDD AGND 0.3 +6.5 V
DRVDD DGND 0.3 +6.5 V
AGND DGND 0.3 +0.3 V
AVDD DRVDD 6.5 +6.5 V
REFGND AGND 0.3 +0.3V






Description

The AD9244 is a monolithic, single 5 V supply, 14-bit, 40 MSPS/65 MSPS analog-to-digital converter with an on-chip, high performance sample-and-hold amplifier and voltage reference. The AD9244 uses a multistage differential pipelined architecture with output error correction logic to provide 14-bit accuracy at 40 MSPS/65 MSPS data rates and guarantees no missing codes over the full operating temperature range. The AD9244 has an on-board, programmable voltage reference. An external reference can also be used to suit the dc accuracy and temperature drift requirements of the application.

A differential or single-ended clock input is used to control all internal conversion cycles. The digital output data can be presented in straight binary or in twos complement format. An out-of-range (OTR) signal indicates an overflow condition that can be used with the most significant bit to determine low or
high overflow. Fabricated on an advanced CMOS process, the AD9244 is available in a 48-lead low profile quad flatpack package (LQFP) and is specified for operation over the industrial temperature range (40°C to +85°C).