ADS8506

BurrĆBrown Products from Texas Instruments ADS8506 SLAS484B – SEPTEMBER 2007 – REVISED DECEMBER 2007 12-BIT 40-KSPS LOW POWER SAMPLING ANALOG-TO-DIGITAL CONVERTER WITH INTERNAL REFERENCE AND PARALLEL/SERIAL INTERFACE FEATURES 1 2 40-kHz Min Sampling Rate 4-V, 5-V, and ±10-V Input Ranges 73.9-dB SINAD with 10-kHz Input ±0.45 LSB Max INL ±0.45 LSB Max DNL, 12-Bit No Missing Codes ±5-mV BPZ, ±0.5 PPM/°C BPZ Drift SPI Compatible Serial Output With Daisy-Chain (TAG), SPI Master/Slave Feature Single 5-V Analog Supply Pin-Compatible With ADS7806 and 16-Bit ADS7807/8507 Uses Internal or External 2.5-V Reference Low Power Dissipation – 24 mW Typ, 30 mW Max at 40 KSPS 50-µW Max Power Down Mode 28-Pin SO Package Full Parallel Interface 2's Comp or BTC Output Code APPLICATIONS Industrial Process Control Test Equipment Medical Equipment Data Acquisition Systems Digital Signal Processing Instrumentation DESCRIPTION The ADS8506 is a complete low power, single 5-V supply, 12-bit sampling analog-to-digital (A/D) converter. It contains a complete 12-bit capacitor-based, successive approximation register (SAR) A/D converter with sample and hold, clock, reference, and data interface. The converter can be configured for a variety of input ranges including ±10 V, 4 V, and 5 V. For most input ranges, the input voltage can swing to 25 V or –25 V without damage to the converter. A SPI compatible serial interface allows data to be synchronized to an interna...