Texas Instruments ADS5231IPAG

Description
The ADS5231 is a dual, high-speed, high dynamic range, 12-bit pipelined analog-to-digital converter (ADC). It features a high-bandwidth sample-and-hold amplifier for excellent spurious performance up to and beyond the Nyquist rate. The differential nature of the sample-and-hold amplifier and ADC circuitry minimizes even-order harmonics and provides excellent common-mode noise immunity.
The ADS5231 allows for setting the full-scale range of the converter without any external reference circuitry. The internal reference can be disabled, enabling low-drive, external references for improved tracking in multichannel systems.
The ADS5231 provides an over-range indicator flag to indicate an input signal that exceeds the full-scale input range of the converter. This flag can be used to reduce the gain of front-end gain control circuitry. There is also an output enable pin for multiplexing and testing on a printed circuit board (PCB).
The ADS5231 employs digital error correction techniques to provide excellent differential linearity for demanding imaging applications. It is available in a TQFP-64 package.

Features
Single 3.3V supply
Dual, 12-bit, 40MSPS, 3.3V analog-to-digital converter
High SNR: 70.7dBFS at f = 5MHz
Total power dissipation:
Internal reference: 321mW
External reference: 285mW
Internal or external reference
Low DNL: ±0.3LSB
Flexible input range: 1.5Vpp to 2Vpp
TQFP-64 package

Applications
Communications IF processing
Communications base stations
Test equipment
Medical imaging
Video digitizing
CCD digitizing