Texas Instruments ADS803EG4

Description
The ADS803 is a high-speed, high dynamic range, 12-bit pipelined Analog-to-Digital (A/D) converter. It features a high-bandwidth track-and-hold for excellent spurious performance up to and beyond the Nyquist rate. The ADS803 provides an internal reference and can be programmed for a 2Vp-p input range for optimal spurious performance and ease of driving. Alternatively, the 5Vp-p input range can be used for the lowest input referred noise, resulting in superior imaging performance. The ADS803 also allows for setting the input range between 2Vp-p and 5Vp-p or using an external reference. Additionally, it provides an over-range indicator flag to indicate an input range exceeding the full-scale input range, which can be used to adjust the gain of the front-end gain-ranging circuitry. The ADS803 employs digital error-correction techniques for excellent differential linearity in demanding imaging applications. Its low distortion and high SNR provide the necessary margin for communications, medical imaging, video, and test instrumentation applications.

Features
12-Bit, 5MHz Sampling
High SFDR: 82dB at Nyquist
High SNR: 69dB
Low Power: 115mW
Low DLE: 0.25LSB
Flexible Input Range
Over-Range Indicator

Applications
IF and Baseband Digitization
CCD Imaging Scanners
Test Instrumentation