參數(shù)資料
型號： AD7939BCP
廠商： ANALOG DEVICES INC
元件分類： ADC
英文描述： 8-Channel, 1.5 MSPS, 12-Bit and 10-Bit Parallel ADCs with a Sequencer
中文描述： 8-CH 10-BIT SUCCESSIVE APPROXIMATION ADC, PARALLEL ACCESS, QCC32
封裝： MO-220-VHHD-2, LFCSP-32
文件頁數(shù)： 2/32頁
文件大小： 1332K
代理商： AD7939BCP
AD7938/AD7939
Preliminary Technical Data
TABLE OF CONTENTS
AD7938—Specifications..................................................................3
AD7939—Specifications..................................................................5
Timing Specifications.......................................................................7
Absolute Maximum Ratings............................................................8
ESD Caution..................................................................................8
Pin Function Description................................................................9
Terminology....................................................................................11
Typical Performance Characteristics...........................................13
On-Chip Registers..........................................................................16
Circuit Information........................................................................18
Converter Operation..................................................................18
ADC Transfer Function.............................................................18
Typical Connection Diagram ...................................................19
Analog Input Structure..............................................................19
Analog Inputs.............................................................................. 20
Analog Input Selection.............................................................. 22
Reference Section....................................................................... 23
Parallel Interface......................................................................... 25
Power Modes of Operation....................................................... 28
Power vs. Throughput Rate....................................................... 29
Microprocessor Interfacing....................................................... 29
Application Hints ........................................................................... 31
Grounding and Layout.............................................................. 31
PCB Design Guidelines for Chip Scale Package .................... 31
Evaluating the AD7938/AD7939 Performance...................... 31
Outline Dimensions....................................................................... 32
Ordering Guide .......................................................................... 32
REVISION HISTORY
8/04—Revision PrN: Preliminary Version
Rev. PrN | Page 2 of 32
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