Datasheet AD7910, AD7920 (Analog Devices) - 2

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AD7910/AD7920 TABLE OF CONTENTS
Features .. 1 ADC Transfer Function... 14 Applications... 1 Typical Connection Diagram ... 14 Functional Block Diagram .. 1 Analog Input ... 15 General Description ... 1 Digital Inputs .. 15 Product Highlights ... 1 Modes of Operation ... 16 Specifications... 3 Normal Mode.. 16 AD7910 .. 3 Power-Down Mode .. 16 AD7920 .. 4 Power-Up Time .. 16 Timing Specifications .. 6 Power vs. Throughput Rate... 18 Timing Examples .. 7 Serial Interface .. 19 Timing Example 1 .. 7 Microprocessor Interfacing... 20 Timing Example 2 .. 7 AD7910/AD7920 to TMS320C541 Interface ... 20 Absolute Maximum Ratings.. 8 AD7910/AD7920 to ADSP-218x.. 20 ESD Caution.. 8 AD7910/AD7920 to DSP563xx Interface ... 21 Pin Configurations and Function Descriptions ... 9 Application Hints ... 22 Typical Performance Characteristics ... 10 Grounding and Layout .. 22 Terminology .. 12 Evaluating Performance .. 22 Circuit Information .. 13 Outline Dimensions ... 23 Converter Operation.. 14 Ordering Guide .. 24
REVISION HISTORY 9/05—Rev. B to Rev. C 8/03—Rev. 0 to Rev. A
Updated Formatting ..Universal Changes to Ordering Guide...6 Updated Outline Dimensions... 23 Changes to Evaluating the AD7910/AD7920 Performance Changes to Ordering Guide.. 24 Section.. 18 Updated Outline Dimensions .. 19
3/04—Rev. A to Rev. B
Added U.S. Patent Number .. 1 Changes to Note 5 .. 2 Changes to Note 6 of AD7920 Specifications... 4 Changes to Note 1 of Timing Specifications .. 4 Changes to Absolute Maximum Ratings .. 6 Changes to Ordering Guide.. 6 Rev. C | Page 2 of 24 Document Outline FEATURES APPLICATIONS FUNCTIONAL BLOCK DIAGRAM GENERAL DESCRIPTION PRODUCT HIGHLIGHTS SPECIFICATIONS AD7910 AD7920 TIMING SPECIFICATIONS TIMING EXAMPLES TIMING EXAMPLE 1 TIMING EXAMPLE 2 ABSOLUTE MAXIMUM RATINGS ESD CAUTION PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS TERMINOLOGY CIRCUIT INFORMATION CONVERTER OPERATION ADC TRANSFER FUNCTION TYPICAL CONNECTION DIAGRAM ANALOG INPUT DIGITAL INPUTS MODES OF OPERATION NORMAL MODE POWER-DOWN MODE POWER-UP TIME POWER VS. THROUGHPUT RATE SERIAL INTERFACE MICROPROCESSOR INTERFACING AD7910/AD7920 TO TMS320C541 INTERFACE AD7910/AD7920 TO ADSP-218x AD7910/AD7920 TO DSP563xx INTERFACE APPLICATION HINTS GROUNDING AND LAYOUT EVALUATING PERFORMANCE OUTLINE DIMENSIONS ORDERING GUIDE