Datasheet AD7091R-2, AD7091R-4, AD7091R-8 (Analog Devices) - 6

AD7091R-2/AD7091R-4/AD7091R-8 Data Sheet Timing Diagram tCYC EOC tACQ tCNVPW CONVST tQUIET tCONVERT tEOCCSL CS tHSDO tSCLK tSCLKH SCLK 1 2 3 4 5 6 7 15 16 t t t DSDO SCLKL EN t TRISTATE DIS TRISTATE SDO CH_ID2 CH_ID1 CH_ID0 ALERT DB11 DB10 DB9 DB1 DB0 tSSDISCLK tHSDISCLK
2 00
SDI ADD4 ADD3 ADD2 ADD1 ADD0 RW DB9 DB1 DB0
91- 108 Figure 4. Serial Port Timing Rev. C | Page 6 of 42 Document Outline FEATURES APPLICATIONS FUNCTIONAL BLOCK DIAGRAM GENERAL DESCRIPTION TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS TIMING SPECIFICATIONS Timing Diagram 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 TYPICAL CONNECTION DIAGRAM ANALOG INPUT DRIVER AMPLIFIER CHOICE REGISTERS ADDRESSING REGISTERS CONVERSION RESULT REGISTER CHANNEL REGISTER CONFIGURATION REGISTER ALERT INDICATION REGISTER CHANNEL x LOW LIMIT REGISTER CHANNEL x HIGH LIMIT REGISTER CHANNEL x HYSTERESIS REGISTER SERIAL PORT INTERFACE READING CONVERSION RESULT WRITING DATA TO THE REGISTERS READING DATA FROM THE REGISTERS POWER-ON DEVICE INITIALIZATION MODES OF OPERATION NORMAL MODE POWER-DOWN MODE ALERT (AD7091R-4 AND AD7091R-8 ONLY) BUSY (AD7091R-4 AND AD7091R-8 ONLY) CHANNEL SEQUENCER DAISY CHAIN OUTLINE DIMENSIONS ORDERING GUIDE