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AD7927BRU-REEL Arkusz danych(PDF) 3 Page - Analog Devices |
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AD7927BRU-REEL Arkusz danych(HTML) 3 Page - Analog Devices |
3 / 29 page AD7927 Data Sheet Rev. D | Page 2 of 28 TABLE OF CONTENTS Features .............................................................................................. 1 General Description ......................................................................... 1 Functional Block Diagram .............................................................. 1 Product Highlights ........................................................................... 1 Revision History ............................................................................... 2 Specifications..................................................................................... 3 Timing Specifications .................................................................. 5 Absolute Maximum Ratings............................................................ 6 ESD Caution.................................................................................. 6 Pin Configuration and Function Descriptions............................. 7 Terminology ...................................................................................... 8 Typical Performance Characteristics ........................................... 10 Control Register.............................................................................. 12 Sequencer Operation...................................................................... 13 Shadow Register.............................................................................. 14 Circuit Information.................................................................... 15 Converter Operation.................................................................. 15 Analog Input ............................................................................... 15 ADC Transfer Function............................................................. 16 Handling Bipolar Input Signals ................................................ 16 Typical Connection Diagram........................................................ 17 Analog Input Selection .............................................................. 17 Digital Inputs .............................................................................. 17 VDRIVE............................................................................................ 18 The Reference ............................................................................. 18 Modes of Operation ....................................................................... 19 Normal Mode (PM1 = PM0 = 1) ............................................. 19 Full Shutdown (PM1 = 1, PM0 = 0) ........................................ 19 Auto Shutdown (PM1 = 0, PM0 = 1)....................................... 20 Powering Up the AD7927 ......................................................... 21 Power vs. Throughput Rate....................................................... 21 Serial Interface ................................................................................ 22 Writing Between Conversions .................................................. 22 Microprocessor Interfacing........................................................... 24 AD7927 to TMS320C541 .......................................................... 24 AD7927 to ADSP-21xx.............................................................. 24 AD7927 to DSP563xx ................................................................ 25 Application Hints ........................................................................... 26 Grounding and Layout .............................................................. 26 Outline Dimensions ....................................................................... 27 Ordering Guide .......................................................................... 27 Automotive Products ................................................................. 27 REVISION HISTORY 6/13—Rev. C to Rev. D Deleted Evaluating the AD7927 Performance Section.............. 26 Changes to Ordering Guide .......................................................... 27 12/11—Rev. B to Rev. C Changes to Features Section............................................................ 1 Changes to Table 1............................................................................ 3 Changes to Table 3............................................................................ 6 Changes to Ordering Guide, Added Automotive Products Section.............................................................................................. 27 12/08—Rev. A to Rev. B Changes to ESD Parameter, Table 3 ................................................6 Changes to Ordering Guide .......................................................... 27 1/07—Rev. 0 to Rev. A Updated Format..................................................................Universal Updated Layout .................................................................................8 Updated Layout .............................................................................. 10 Changes to Figure 12 Caption ...................................................... 14 Changes to Figure 13 Caption ...................................................... 15 Changes to Ordering Guide .......................................................... 27 1/03—Revision 0: Initial Version |
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