ADS5232

BurrĆBrown Products from Texas Instruments ADS5232 SBAS294A – JUNE 2004 – REVISED MARCH 2006 Dual, 12-Bit, 65MSPS, +3.3V Analog-to-Digital Converter FEATURES Single +3.3V Supply High SNR: 70.7dBFS at fIN = 5MHz Total Power Dissipation: Internal Reference: 371mW External Reference: 335mW 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 DESCRIPTION The ADS5232 is a dual, high-speed, high dynamic range, 12-bit pipelined analog-to-digital converter (ADC). This converter includes a high-bandwidth sample-and-hold amplifier that gives 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 gives excellent common-mode noise immunity. The ADS5232 provides for setting the full-scale range of the converter without any external reference circuitry. The internal reference can be disabled, allowing low-drive, external references to be used for improved tracking in multichannel systems. The ADS5232 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 to allow for multiplexing and ...