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ADS1220IRVAT Arkusz danych(PDF) 2 Page - Texas Instruments |
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ADS1220IRVAT Arkusz danych(HTML) 2 Page - Texas Instruments |
2 / 71 page ADS1220 SBAS501B – MAY 2013 – REVISED FEBRUARY 2015 www.ti.com Table of Contents 8.3 Feature Description................................................. 19 1 Features .................................................................. 1 8.4 Device Functional Modes........................................ 31 2 Applications ........................................................... 1 8.5 Programming........................................................... 33 3 Description ............................................................. 1 8.6 Register Map........................................................... 38 4 Revision History..................................................... 2 9 Application and Implementation ........................ 43 5 Pin Configuration and Functions ......................... 3 9.1 Application Information............................................ 43 6 Specifications......................................................... 4 9.2 Typical Applications ................................................ 48 6.1 Absolute Maximum Ratings ...................................... 4 10 Power-Supply Recommendations ..................... 58 6.2 ESD Ratings.............................................................. 4 10.1 Power-Supply Sequencing.................................... 58 6.3 Recommended Operating Conditions ....................... 5 10.2 Power-Supply Decoupling..................................... 58 6.4 Thermal Information .................................................. 5 11 Layout................................................................... 59 6.5 Electrical Characteristics........................................... 6 11.1 Layout Guidelines ................................................. 59 6.6 SPI Timing Requirements ......................................... 8 11.2 Layout Example .................................................... 60 6.7 SPI Switching Characteristics ................................... 8 12 Device and Documentation Support ................. 61 6.8 Typical Characteristics .............................................. 9 12.1 Documentation Support ........................................ 61 7 Parameter Measurement Information ................ 15 12.2 Trademarks ........................................................... 61 7.1 Noise Performance ................................................. 15 12.3 Electrostatic Discharge Caution ............................ 61 8 Detailed Description ............................................ 18 12.4 Glossary ................................................................ 61 8.1 Overview ................................................................. 18 13 Mechanical, Packaging, and Orderable 8.2 Functional Block Diagram ....................................... 18 Information ........................................................... 61 4 Revision History NOTE: Page numbers for previous revisions may differ from page numbers in the current version. Changes from Revision A (July 2013) to Revision B Page • Added TI Design, Device Information, ESD Ratings, Recommended Operating Conditions, and Switching Characteristics tables and Application and Implementation, Power Supply Recommendations, Layout, Device and Documentation Support, and Mechanical, Packaging, and Orderable Information sections ................................................. 1 • Changed document title, QFN to VQFN throughout document, Features, Applications, Description, Pin Configuration and Functions, Parameter Measurement Information, Feature Description, Device Functional Modes, Programming, and Register Map sections, and front-page figure ................................................................................................................. 1 • Deleted Product Family table ................................................................................................................................................ 3 • Changed format of Absolute Maximum Ratings table, added minimum junction temperature specification, changed input current parameter name, and removed momentary input current specification ............................................................ 4 • Changed Analog Inputs and Voltage Reference Inputs sections (specification values were not changed) and added Internal Oscillator section to Electrical Characteristics table.................................................................................................. 6 • Changed System Performance section: changed VIO parameter name and added PGA disabled row to Offset drift, Gain error, and Gain drift parameters in System Performance section of Electrical Characteristics table ............................ 6 • Changed Internal Voltage Reference section: changed Reference drift parameter maximum specification and added Long-term drift parameter in Electrical Characteristics table.................................................................................................. 6 • Deleted Clock Sources section and changed Temperature Sensor and Power Supply sections (specification values were not changed) in Electrical Characteristics table............................................................................................................. 7 • Changed Digital Inputs/Outputs section, VIL parameter minimum specification in Electrical Characteristics table ............... 7 • Changed SPI Timing Requirements and Figure 1 (specification values were not changed), added SPI Switching Characteristics and Figure 2 .................................................................................................................................................. 8 • Changed format of Typical Characteristics section (actual curves did not change) .............................................................. 9 Changes from Original (May 2013) to Revision A Page • Changed document status to Mixed Status; pre-RTM changes made throughout ................................................................ 1 2 Submit Documentation Feedback Copyright © 2013–2015, Texas Instruments Incorporated Product Folder Links: ADS1220 |
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