Datasheet AD7903 (Analog Devices) - 3

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AD7903 Data Sheet TABLE OF CONTENTS
Features .. 1 Analog Inputs.. 15 Applications ... 1 Driver Amplifier Choice ... 16 General Description ... 1 Single-to-Differential Driver .. 16 Functional Block Diagram .. 1 Voltage Reference Input .. 17 Revision History ... 2 Power Supply ... 17 Specifications ... 3 Digital Interface .. 17 Timing Specifications .. 5 CS Mode .. 18 Absolute Maximum Ratings .. 6 Chain Mode .. 22 ESD Caution .. 6 Applications Information .. 24 Pin Configuration and Function Descriptions ... 7 Simultaneous Sampling ... 24 Typical Performance Characteristics ... 8 Functional Safety Considerations .. 25 Terminology .. 13 Layout ... 26 Theory of Operation .. 14 Evaluating Performance of the AD7903.. 26 Circuit Information .. 14 Outline Dimensions ... 27 Converter Operation .. 14 Ordering Guide .. 27 Typical Connection Diagram.. 15
REVISION HISTORY 8/14—Rev. A to Rev. B
Changed Standby Current Unit from nA to µA ... 4 Changes to Power Supply Section .. 17
1/14—Rev. 0 to Rev. A
Change to Gain Error Temperature Drift Parameter .. 3 Changes to Figure 12 .. 9 Changes to Figure 17 and Figure 20... 10 Changes to Figure 28 .. 11
12/13—Revision 0: Initial Version
Rev. B | Page 2 of 28 Document Outline Features Applications General Description Functional Block Diagram Table of Contents Revision History Specifications Timing Specifications Absolute Maximum Ratings ESD Caution Pin Configuration and Function Descriptions Typical Performance Characteristics Terminology Theory of Operation Circuit Information Converter Operation Transfer Functions Typical Connection Diagram Analog Inputs Driver Amplifier Choice Single-to-Differential Driver Voltage Reference Input Power Supply Digital Interface CS Mode CS Mode, 3-Wire Interface Without Busy Indicator CS Mode, 3-Wire Interface with Busy Indicator CS Mode, 4-Wire Interface Without Busy Indicator CS Mode, 4-Wire Interface with Busy Indicator Chain Mode Chain Mode Without Busy Indicator Chain Mode with Busy Indicator Applications Information Simultaneous Sampling Functional Safety Considerations Layout Evaluating Performance of the AD7903 Outline Dimensions Ordering Guide