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ADS8689IPWR bảng dữ liệu(PDF) 2 Page - Texas Instruments |
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ADS8689IPWR bảng dữ liệu(HTML) 2 Page - Texas Instruments |
2 / 74 page 2 ADS8681, ADS8685, ADS8689 SBAS633B – FEBRUARY 2016 – REVISED DECEMBER 2016 www.ti.com Product Folder Links: ADS8681 ADS8685 ADS8689 Submit Documentation Feedback Copyright © 2016, Texas Instruments Incorporated Table of Contents 1 Features .................................................................. 1 2 Applications ........................................................... 1 3 Description ............................................................. 1 4 Revision History..................................................... 2 5 Pin Configuration and Functions ......................... 4 6 Specifications......................................................... 5 6.1 Absolute Maximum Ratings ...................................... 5 6.2 ESD Ratings.............................................................. 5 6.3 Recommended Operating Conditions ....................... 5 6.4 Thermal Information .................................................. 5 6.5 Electrical Characteristics........................................... 6 6.6 Timing Requirements: Conversion Cycle................ 10 6.7 Timing Requirements: Asynchronous Reset........... 10 6.8 Timing Requirements: SPI-Compatible Serial Interface ................................................................... 10 6.9 Timing Requirements: Source-Synchronous Serial Interface (External Clock) ........................................ 11 6.10 Timing Requirements: Source-Synchronous Serial Interface (Internal Clock).......................................... 11 6.11 Typical Characteristics .......................................... 15 7 Detailed Description ............................................ 22 7.1 Overview ................................................................. 22 7.2 Functional Block Diagram ....................................... 22 7.3 Feature Description................................................. 23 7.4 Device Functional Modes........................................ 35 7.5 Programming........................................................... 40 7.6 Register Maps ......................................................... 48 8 Application and Implementation ........................ 56 8.1 Application Information............................................ 56 8.2 Typical Application ................................................. 56 9 Power Supply Recommendations ...................... 60 9.1 Power Supply Decoupling ....................................... 60 9.2 Power Saving .......................................................... 60 10 Layout................................................................... 61 10.1 Layout Guidelines ................................................. 61 10.2 Layout Example .................................................... 62 11 Device and Documentation Support ................. 63 11.1 Documentation Support ........................................ 63 11.2 Related Links ........................................................ 63 11.3 Receiving Notification of Documentation Updates 63 11.4 Community Resources.......................................... 63 11.5 Trademarks ........................................................... 63 11.6 Electrostatic Discharge Caution ............................ 63 11.7 Glossary ................................................................ 64 12 Mechanical, Packaging, and Orderable Information ........................................................... 64 4 Revision History NOTE: Page numbers for previous revisions may differ from page numbers in the current version. Changes from Revision A (March 2016) to Revision B Page • Added ADS8685 and ADS8689 devices to document .......................................................................................................... 1 • Changed Features bullets: added High Speed bullet, deleted Aggregate Throughput sub-bullet from Excellent Performance bullet, added Extended to Industrial Temperature Range bullet, and deleted Packages bullet ....................... 1 • Changed Description section ................................................................................................................................................. 1 • Deleted Device Comparison Table ........................................................................................................................................ 4 • Added maximum throughput to conditions statement of Electrical Characteristics table and all Timing Requirements tables ..................................................................................................................................................................................... 6 • Changed Power-Supply Requirements sub-section parameter names in Electrical Characteristics table for clarity (specification values did not change) ..................................................................................................................................... 8 • Changed conditions of Timing Requirements tables ........................................................................................................... 10 • Changed Typical Characteristics section: added maximum throughput to conditions statement and deleted redundant plots for the ADS868x ........................................................................................................................................ 15 • Changed Input Alarm section: corrected alarm reset configuration in last two paragraphs and both images ..................... 34 • Added fifth paragraph of Multiple Devices: Daisy-Chain Topology section.......................................................................... 37 • Added RST (Falling Edge) to Device Functional States figure ............................................................................................ 38 • Changed bulleted list in Data Transfer Frame section pertaining to the end of the data transfer frame F .......................... 41 • Changed Output Data Word section..................................................................................................................................... 43 • Changed several value after reset notations from h to b throughout bit registers of the Register Maps section ............... 48 • Changed ALARM_H_TH_REG Register Field Descriptions table ...................................................................................... 55 • Changed ALARM_L_TH_REG Register Field Descriptions table ....................................................................................... 55 • Changed Application and Implementation section for clarity and improved description of device functionality ................. 56 • Changed first sentence of Power Saving section................................................................................................................. 60 |
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