ADS8318

ADS8318 www.ti.com SLAS568A – MAY 2008 – REVISED MARCH 2011 16-BIT, 500-KSPS, SERIAL INTERFACE MICROPOWER, MINIATURE, SAR ANALOG-TO-DIGITAL CONVERTER Check for Samples: ADS8318 FEATURES 1 500-kHz Sample Rate 16-Bit Resolution Zero Latency at Full Speed Unipolar, Differential Input, Range: –Vref to Vref SPI Compatible Serial Interface with Daisy Chain Option Excellent Performance: – 95.2dB SNR Typ at 10-kHz I/P – –108dB THD Typ at 10-kHz I/P – ±1.0 LSB Max INL – ±0.75 LSB Max DNL Low Power Dissipation: 18 mW Typ at 500 KSPS Power Scales Linearly with Speed: 3.6 mW/100 KSPS Power Dissipation During Power-Down State: 0.25 μW Typ 10-Pin MSOP and SON Packages APPLICATIONS Battery Powered Equipments Data Acquisition Systems Instrumentation and Process Control Medical Electronics Optical Networking DESCRIPTION The ADS8318 is a 16-bit, 500-KSPS analog-to-digital converter. It operates with a 2.048-V to 5.5-V external reference. The device includes a capacitor based, SAR A/D converter with inherent sample and hold. The devices includes a 50-MHz SPI compatible serial interface. The interface is designed to support daisy chaining or cascading of multiple devices. Also a Busy Indicator makes it easy to synchronize with the digital host. The ADS8318 unipolar differential input range supports a differential input swing of –Vref to +Vref with a common-mode of +Vref/2. Device operation is optimized for very low power operation, and the power consumption dire...