Datasheet AD7457 (Analog Devices) - 3

link to page 4 link to page 6 link to page 7 link to page 7 link to page 8 link to page 9 link to page 11 link to page 12 link to page 12 link to page 12 link to page 12 link to page 12 link to page 13 link to page 13 link to page 14 link to page 14 link to page 14 link to page 15 link to page 15 link to page 17 link to page 17 link to page 18 link to page 18
AD7457 TABLE OF CONTENTS
Specifications... 3 Analog Input ... 12 Timing Specifications... 5 Analog Input Structure.. 12 Absolute Maximum Ratings.. 6 Digital Inputs .. 13 ESD Caution.. 6 Reference Section ... 13 Pin Configuration and Function Descriptions... 7 Serial Interface .. 13 Typical Performance Characteristics ... 8 Power Consumption .. 14 Terminology .. 10 Microprocessor Interfacing... 14 Theory of Operation .. 11 Application Hints ... 16 Circuit Information.. 11 Grounding and Layout .. 16 Converter Operation.. 11 Outline Dimensions ... 17 ADC Transfer Function... 11 Ordering Guide .. 17 Typical Connection Diagram ... 11
REVISION HISTORY 2/05—Rev. 0 to Rev. A
Changes to Table 3.. 6 Changes to Ordering Guide .. 17
10/03—Rev. 0: Initial Version
Rev. A | Page 2 of 20 Document Outline FEATURES APPLICATIONS GENERAL DESCRIPTION PRODUCT HIGHLIGHTS SPECIFICATIONS TIMING SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS TERMINOLOGY THEORY OF OPERATION CIRCUIT INFORMATION CONVERTER OPERATION ADC TRANSFER FUNCTION TYPICAL CONNECTION DIAGRAM ANALOG INPUT ANALOG INPUT STRUCTURE DIGITAL INPUTS REFERENCE SECTION SERIAL INTERFACE POWER CONSUMPTION MICROPROCESSOR INTERFACING AD7457 to ADSP-218x APPLICATION HINTS GROUNDING AND LAYOUT OUTLINE DIMENSIONS ORDERING GUIDE