AD7766TIMING DIAGRAMSt2MCLK18 × n18 × nt3t4t1t5t5DRDYtREAD 02 0 t 9- DRDY 44 06 Figure 2. DRDY vs. MCLK Timing Diagram, n = 1 for AD7766 (Decimate by 8), n = 2 for AD7766-1 (Decimate by 16), n = 4 for AD7766-2 (Decimate by 32) tDRDYDRDYtREADtt136CSt10123SCLKt11tt8t97t12 3 00 SDOMSBD22D21D20D1LSB 9- 44 06 Figure 3. Serial Timing Diagram, Reading Data Using CS CS = 0tDRDYDRDYtREADt14t10SCLK12324t11t8t9t15SDODATAINVALIDMSBD22D21D20D1LSBDATAINVALID 04 0 9- 44 06 Figure 4. Serial Timing Diagram, Reading Data Setting CS Logic Low Rev. C | Page 6 of 24 Document Outline FEATURES APPLICATIONS FUNCTIONAL BLOCK DIAGRAM GENERAL DESCRIPTION RELATED DEVICES TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS TIMING SPECIFICATIONS TIMING DIAGRAMS ABSOLUTE MAXIMUM RATINGS ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS TERMINOLOGY THEORY OF OPERATION AD7766/AD7766-1/AD7766-2 TRANSFER FUNCTION CONVERTER OPERATION ANALOG INPUT STRUCTURE SUPPLY AND REFERENCE VOLTAGES AD7766/AD7766-1/AD77662-2 INTERFACE INITIAL POWER-UP READING DATA POWER-DOWN, RESET, AND SYNCHRONIZATION DAISY CHAINING READING DATA IN DAISY-CHAIN MODE CHOOSING THE SCLK FREQUENCY DAISY-CHAIN MODE CONFIGURATION AND TIMING DIAGRAMS DRIVING THE AD7766/AD7766-1/AD7766-2 DIFFERENTIAL SIGNAL SOURCE SINGLE-ENDED SIGNAL SOURCE ANTIALIASING POWER DISSIPATION VREF+ INPUT SIGNAL MULTIPLEXING ANALOG INPUT CHANNELS OUTLINE DIMENSIONS ORDERING GUIDE