Texas Instruments ADS8319 Precision 16-Bit SAR ADC

Texas Instruments ADS8319 Precision 16-Bit SAR Analog-to-Digital Converter (ADC) is a 500-KSPS analog-to-digital converter that operates with a 2.25V to 5.5V external reference. The device includes a capacitor-based, SAR A/D converter with an inherent sample and hold. The device 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 ADS8319 unipolar single-ended input range supports an input swing of 0V to +Vref. Device operation is optimized for very low power operation, and the power consumption directly scales with speed. This feature makes it attractive for lower speed applications.

Features

  • 500kHz Sample Rate
  • 16-Bit Resolution
  • Zero Latency at Full Speed
  • Unipolar, Single-Ended Input, Range: 0V to Vref
  • SPI Compatible Serial Interface with Daisy Chain Option
  • Excellent Performance:93.6dB SNR Typ at 10kHz I/P
  • -106dB THD Typ at 10kHz I/P
  • ±1.5 LSB Max INL
  • ±1.0 LSB Max DNL
  • Low Power Dissipation: 18mW Typ at 500 KSPS
  • Power Scales Linearly with Speed: 3.6mW/100 KSPS
  • Power Dissipation During Power-Down State: 0.25μW Typ
  • 10-Pin MSOP and SON Packages

Applications

  • Battery-Powered Equipment
  • Data Acquisition Systems
  • Instrumentation and Process Control
  • Medical Electronics
  • Optical Networking

Functional Block Diagram

Block Diagram - Texas Instruments ADS8319 Precision 16-Bit SAR ADC
Published: 2014-03-18 | Updated: 2025-08-01