ADS8413

BurrĆBrown Products from Texas Instruments ADS8413 16-BIT, 2-MSPS, LVDS SERIAL INTERFACE, SAR ANALOG-TO-DIGITAL CONVERTER SLAS490 – OCTOBER 2005 FEATURES 2-MHz Sample Rate 16-Bit Resolution SNR 92 dB at 10 kHz I/P THD –107 dB at 10 kHz I/P ±1 LSB Typ, ±2 LSB INL Max +0.7/–0.5 LSB Typ, +1.5/–1 LSB DNL Max Unipolar Differential Input Range: –4 V to 4 V Internal Reference Internal Reference Buffer 200-Mbps LVDS Serial Interface Optional 200-MHz Internal Interface Clock 16-/8-Bit Data Frame Zero Latency at Full Speed Power Dissipation: 290 mW at 2 MSPS Nap Mode (125 mW Power Dissipation) Power Down (5 µW) 48-Pin QFN Package APPLICATIONS Medical Instrumentation HIgh-Speed Data Acquisiton Systems High-Speed Close-Loop Systems Communication DESCRIPTION The ADS8413 is a 16-bit, 2-MSPS, analog-to-digital (A/D) converter with 4-V internal reference. The device includes a capacitor based SAR A/D converter with inherent sample and hold. The ADS8413 also includes a 200-Mbps, LVDS, serial interface. This interface is designed to support daisy chaining or cascading of multiple devices. A selectable 16-/8-bit data frame mode enables the use of a single shift register chip (SN65LVDS152) for converting the data to parallel format. The ADS8413 unipolar differential input range supports a differential input swing of –Vref to +Vref with a common-mode voltage of +Vref/2. The nap feature provides substantial power saving when used at lower conversion r...