Datasheet AD7492 (Analog Devices) - 3

link to page 1 link to page 1 link to page 1 link to page 1 link to page 1 link to page 1 link to page 1 link to page 1 link to page 3 link to page 3 link to page 4 link to page 4 link to page 4 link to page 4 link to page 5 link to page 5 link to page 7 link to page 7 link to page 8 link to page 8 link to page 8 link to page 8 link to page 9 link to page 9 link to page 11 link to page 11 link to page 13 link to page 13 link to page 14 link to page 14 link to page 14 link to page 14 link to page 14 link to page 14 link to page 14 link to page 14 link to page 15 link to page 15 link to page 15 link to page 15 link to page 15 link to page 15 link to page 15 link to page 15 link to page 15 link to page 15 link to page 17 link to page 17 link to page 19 link to page 19 link to page 19 link to page 19 link to page 19 link to page 19 link to page 22 link to page 22 link to page 22 link to page 22
AD7492 TABLE OF CONTENTS
Features .. 1 Converter Operation.. 13 Functional Block Diagram .. 1 Typical Connection Diagram ... 13 General Description ... 1 ADC Transfer Function... 13 Product Highlights ... 1 AC Acquisition Time ... 14 Revision History ... 2 DC Acquisition Time... 14 Specifications... 3 Analog Input ... 14 AD7492-5 .. 3 Parallel Interface... 14 AD7492/AD7492-4 .. 4 Operating Modes.. 14 Timing Specifications .. 6 Power-Up... 16 Absolute Maximum Ratings.. 7 Grounding and Layout .. 18 ESD Caution.. 7 Power Supplies .. 18 Pin Configuration and Function Descriptions... 8 Microprocessor Interfacing... 18 Typical Peformance Characteristics ... 10 Outline Dimensions ... 21 Terminology .. 12 Ordering Guide .. 21 Circuit Description... 13
REVISION HISTORY 5/06—Rev. 0 to Rev. A
Added AD7492-4..Universal Changes to Table 4.. 8 Updated Outline Dimensions ... 22 Changes to Ordering Guide .. 22
1/01—Revision 0: Initial Version
Rev. A | Page 2 of 24 Document Outline FEATURES FUNCTIONAL BLOCK DIAGRAM GENERAL DESCRIPTION PRODUCT HIGHLIGHTS TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS AD7492-5 AD7492/AD7492-4 TIMING SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PEFORMANCE CHARACTERISTICS TERMINOLOGY CIRCUIT DESCRIPTION CONVERTER OPERATION TYPICAL CONNECTION DIAGRAM ADC TRANSFER FUNCTION AC ACQUISITION TIME DC ACQUISITION TIME ANALOG INPUT PARALLEL INTERFACE OPERATING MODES POWER-UP GROUNDING AND LAYOUT POWER SUPPLIES MICROPROCESSOR INTERFACING OUTLINE DIMENSIONS ORDERING GUIDE