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AD7655 데이터시트(PDF) 2 Page - Analog Devices |
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AD7655 데이터시트(HTML) 2 Page - Analog Devices |
2 / 28 page AD7654 Rev. B | Page 2 of 28 TABLE OF CONTENTS Features .............................................................................................. 1 Applications....................................................................................... 1 Functional Block Diagram .............................................................. 1 General Description ......................................................................... 1 Product Highlights ........................................................................... 1 Specifications..................................................................................... 3 Timing Specifications .................................................................. 5 Absolute Maximum Ratings............................................................ 7 ESD Caution.................................................................................. 7 Pin Configuration and Function Descriptions............................. 8 Terminology .................................................................................... 11 Typical Performance Characteristics ........................................... 12 Application Information................................................................ 14 Circuit Information.................................................................... 14 Modes of Operation ................................................................... 14 Transfer Functions...................................................................... 14 Typical Connection Diagram ................................................... 16 Analog Inputs.............................................................................. 16 Input Channel Multiplexer........................................................ 16 Driver Amplifier Choice ........................................................... 16 Voltage Reference Input ............................................................ 17 Power Supply............................................................................... 17 Power Dissipation....................................................................... 17 Conversion Control ................................................................... 18 Digital Interface.......................................................................... 18 Parallel Interface......................................................................... 18 Serial Interface ............................................................................ 20 Master Serial Interface............................................................... 20 Slave Serial Interface .................................................................. 22 Microprocessor Interfacing....................................................... 24 SPI Interface (ADSP-219x) ....................................................... 24 Application Hints ........................................................................... 25 Layout .......................................................................................... 25 Evaluating the AD7654 Performance ...................................... 25 Outline Dimensions ....................................................................... 26 Ordering Guide .......................................................................... 27 REVISION HISTORY 11/05—Rev. A to Rev. B Changes to General Description .................................................... 1 Changes to Timing Specifications .................................................. 5 Changes to Figure 16...................................................................... 13 Changes to Figure 18...................................................................... 15 Added Table 8.................................................................................. 17 Changes to Figure 24...................................................................... 19 Changes to Figure 29...................................................................... 21 Updated Outline Dimensions ....................................................... 26 Changes to Ordering Guide .......................................................... 26 11/04—Rev. 0 to Rev. A Changes to Figure 7........................................................................ 12 Changes to Figure 18...................................................................... 15 Changes to Figure 19...................................................................... 16 Changes to Voltage Reference Input Section .............................. 17 Changes to Conversion Control Section ..................................... 18 Changes to Digital Interface Section ........................................... 18 Updated Outline Dimensions...................................................... 25 11/02—Revision 0: Initial Version |
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