Datasheet AD7266 (Analog Devices) - 3

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AD7266 TABLE OF CONTENTS
Features .. 1 VDRIVE.. 18 General Description ... 1 Modes of Operation ... 19 Functional Block Diagram .. 1 Normal Mode.. 19 Product Highlights ... 1 Partial Power-Down Mode ... 19 Revision History ... 2 Full Power-Down Mode .. 20 Specifications... 3 Power-Up Times... 21 Timing Specifications .. 5 Power vs. Throughput Rate... 21 Absolute Maximum Ratings.. 6 Serial Interface .. 22 ESD Caution.. 6 Microprocessor Interfacing... 23 Pin Configuration and Function Descriptions... 7 AD7266 to ADSP218x ... 23 Typical Performance Characteristics ... 9 AD7266 to ADSP-BF53x ... 24 Terminology .. 11 AD7266 to TMS320C541 .. 24 Theory of Operation .. 13 AD7266 to DSP563xx .. 25 Circuit Information.. 13 Application Hints ... 26 Converter Operation.. 13 Grounding and Layout .. 26 Analog Input Structure.. 13 PCB Design Guidelines for LFCSP .. 26 Analog Inputs.. 14 Evaluating the AD7266 Performance .. 26 Analog Input Selection .. 17 Outline Dimensions ... 27 Output Coding.. 17 Ordering Guide .. 27 Transfer Functions.. 18 Digital Inputs .. 18
REVISION HISTORY 5/11—Rev. A to Rev. B 4/05—Revision 0: Initial Version
Changes to Mnemonic Order for Pin 13 to Pin 18, Pin 23 to Pin 25, and Pin 28, Pin 30 in Table 4 .. 7 Added EPAD Note.. 7 Updated Outline Dimensions ... 27 Changes to Ordering Guide .. 27
11/06—Rev. 0 to Rev. A
Changes to Format ...Universal Changes to Reference Input/Output Section .. 4 Changes to Table 4.. 7 Changes to Terminology Section.. 11 Changes to Figure 24 and Differential Mode Section.. 15 Changes to Figure 29.. 16 Changes to Figure 39.. 21 Changes to AD7265 to ADSP-BF53x Section... 24 Updated Outline Dimensions ... 27 Changes to Ordering Guide .. 27 Rev. B | Page 2 of 28 Document Outline FEATURES GENERAL DESCRIPTION FUNCTIONAL BLOCK DIAGRAM PRODUCT HIGHLIGHTS 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 ANALOG INPUT STRUCTURE ANALOG INPUTS Single-Ended Mode Differential Mode Driving Differential Inputs Using an Op Amp Pair Pseudo Differential Mode ANALOG INPUT SELECTION OUTPUT CODING TRANSFER FUNCTIONS DIGITAL INPUTS VDRIVE MODES OF OPERATION NORMAL MODE PARTIAL POWER-DOWN MODE FULL POWER-DOWN MODE POWER-UP TIMES POWER vs. THROUGHPUT RATE SERIAL INTERFACE MICROPROCESSOR INTERFACING AD7266 TO ADSP-218x AD7266 TO ADSP-BF53x AD7266 TO TMS320C541 AD7266 TO DSP563xx APPLICATION HINTS GROUNDING AND LAYOUT PCB DESIGN GUIDELINES FOR LFCSP EVALUATING THE AD7266 PERFORMANCE OUTLINE DIMENSIONS ORDERING GUIDE