Datasheet AD7091R-5 (Analog Devices) - 3

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AD7091R-5 Data Sheet TABLE OF CONTENTS
Features .. 1 I2C Register Access ... 19 Applications ... 1 Conversion Result Register ... 20 Functional Block Diagram .. 1 Channel Register .. 21 General Description ... 1 Configuration Register .. 22 Revision History ... 2 Alert Indication Register ... 24 Specifications ... 3 Channel x Low Limit Register .. 26 I2C Timing Specifications .. 5 Channel x High Limit Register ... 26 Absolute Maximum Ratings .. 6 Channel x Hysteresis Register .. 26 Thermal Resistance .. 6 I2C Interface .. 27 ESD Caution .. 6 Serial Bus Address Byte ... 27 Pin Configurations and Function Descriptions ... 7 General I2C Timing .. 27 Typical Performance Characteristics ... 9 Writing to the AD7091R-5 .. 28 Terminology .. 14 Writing Two Bytes of Data to a 16-Bit Register ... 28 Theory of Operation .. 15 Writing to Multiple Registers.. 28 Circuit Information .. 15 Reading Data from the AD7091R-5 ... 29 Converter Operation .. 15 Reading Two Bytes of Data from a 16-Bit Register ... 29 ADC Transfer Function ... 15 Modes of Operation ... 30 Reference ... 15 Sample Mode... 30 Power Supply ... 16 Command Mode .. 30 Device Reset .. 16 Autocycle Mode .. 32 Analog Input ... 16 Power-Down Mode .. 32 Driver Amplifier Choice .. 17 Alert ... 33 Typical Connection Diagram.. 17 Busy .. 33 I2C Registers .. 19 Channel Sequencer .. 33 Addressing Registers .. 19 Outline Dimensions ... 34 Slave Address ... 19 Ordering Guide .. 34
REVISION HISTORY 7/15—Revision 0: Initial Version
Rev. 0 | Page 2 of 34 Document Outline FEATURES APPLICATIONS FUNCTIONAL BLOCK DIAGRAM GENERAL DESCRIPTION REVISION HISTORY SPECIFICATIONS I2C TIMING SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS THERMAL RESISTANCE ESD CAUTION PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS TERMINOLOGY THEORY OF OPERATION CIRCUIT INFORMATION CONVERTER OPERATION ADC TRANSFER FUNCTION REFERENCE POWER SUPPLY DEVICE RESET ANALOG INPUT DRIVER AMPLIFIER CHOICE TYPICAL CONNECTION DIAGRAM I2C REGISTERS ADDRESSING REGISTERS SLAVE ADDRESS I2C REGISTER ACCESS CONVERSION RESULT REGISTER CHANNEL REGISTER CONFIGURATION REGISTER ALERT INDICATION REGISTER CHANNEL x LOW LIMIT REGISTER CHANNEL x HIGH LIMIT REGISTER CHANNEL x HYSTERESIS REGISTER I2C INTERFACE SERIAL BUS ADDRESS BYTE GENERAL I2C TIMING WRITING TO THE AD7091R-5 WRITING TWO BYTES OF DATA TO A 16-BIT REGISTER WRITING TO MULTIPLE REGISTERS READING DATA FROM THE AD7091R-5 READING TWO BYTES OF DATA FROM A 16-BIT REGISTER MODES OF OPERATION SAMPLE MODE COMMAND MODE AUTOCYCLE MODE POWER-DOWN MODE ALERT BUSY CHANNEL SEQUENCER OUTLINE DIMENSIONS ORDERING GUIDE