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ADS8881

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SBAS547D – MAY 2013 – REVISED AUGUST 2015

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Changes from Revision B (December 2014) to Revision C

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Changed format to meet latest data sheet standards; added new sections, moved existing sections ................................. 1

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Changed ADS8881 to ADS8881C, added ADS8881I ........................................................................................................... 1

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Separated ADS8881C and ADS8881I specifications in Excellent AC and DC Performance Features bullet ....................... 1

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Changed Device Information table to current standards ........................................................................................................ 1

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Added Recommended Operating Conditions table ................................................................................................................ 7

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Changed LSB footnote to include how to convert LSB to ppm ............................................................................................. 8

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Changed fSCLK parameter maximum specification from 66.6 MHz to 70 MHz in Timing Requirements: 3-Wire

Operation table. .................................................................................................................................................................... 10

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Changed tSCLK parameter minimum specification from 15 ns to 14.3 ns in Timing Requirements: 3-Wire Operation

table. ..................................................................................................................................................................................... 10

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Added more information about validity of data on SCLK edges in all interface modes ....................................................... 25

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Changed diagrams and text for better explanation of the daisy-chain feature in the Daisy-Chain Mode section ............... 30

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Changed Equation 2 and Equation 3 .................................................................................................................................. 34

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Added Layout Guidelines section ......................................................................................................................................... 47

Changes from Revision A (July 2013) to Revision B

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Changed Wide Common-Mode Voltage Range Features bullet ............................................................................................ 1

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Added note 2 to Family Information table............................................................................................................................... 5

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Changed External Reference Input, Reference input current parameter typical specification from 350 to 300 .................... 8

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Added External Reference Input, Reference leakage current parameter to Electrical Characteristics.................................. 8

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Changed Power-Supply Requirements, Power-supply voltage parameter digital interface supply range as a function

of SCLK in Electrical Characteristics ...................................................................................................................................... 9

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Added Digital Inputs, Digital input leakage current parameter to Electrical Characteristics .................................................. 9

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Added true-differential input feature details to Analog Input section.................................................................................... 22

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Deleted shading from Figure 64 ........................................................................................................................................... 35

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Deleted shading from Figure 65 ........................................................................................................................................... 36

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Deleted shading from Figure 67 ........................................................................................................................................... 38

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Deleted shading from Figure 69 ........................................................................................................................................... 40

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Deleted shading from Figure 70 ........................................................................................................................................... 40

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Deleted shading from Figure 72 ........................................................................................................................................... 43

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Added power scaling with throughput feature details to Power Saving section ................................................................... 45

Changes from Original (May 2013) to Revision A

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Changed document status to Production Data; pre-RTM changes made throughout document .......................................... 1