參數(shù)資料
型號(hào)： SX8723E083TDT
廠商： Semtech
文件頁數(shù)： 12/53頁
文件大?。?/td> 0K
描述： IC DAS PRESS/TEMP SENS 12MLPD
標(biāo)準(zhǔn)包裝： 1
系列： ZoomingADC™
類型： 數(shù)據(jù)采集系統(tǒng)（DAS）
輸入類型： 差分
輸出類型： 數(shù)字
接口： I²C
安裝類型： 表面貼裝
封裝/外殼： 12-BFDFN 裸露焊盤
供應(yīng)商設(shè)備封裝： 12-MLPD
包裝： 標(biāo)準(zhǔn)包裝
產(chǎn)品目錄頁面： 585 (CN2011-ZH PDF)
其它名稱： SX8723E083TDTDKR
ADVANCED COMMUNICATIONS & SENSING
V1.8 2009 Semtech Corp.
www.semtech.com
2
SX8723
ZoomingADC for Pressure and Temperature Sensing
Table of Contents
Description..............................................................................................................................................................1
Applications............................................................................................................................................................1
Features ..................................................................................................................................................................1
Ordering Information .............................................................................................................................................1
Functional Block Diagram.....................................................................................................................................1
Absolute Maximum Ratings ..................................................................................................................................4
Electrical Characteristics ......................................................................................................................................5
ZoomingADC Specifications.................................................................................................................................6
Timing Characteristics ..........................................................................................................................................8
2-WIRE Timing Waveforms ...................................................................................................................................8
Pin Configuration ...................................................................................................................................................9
Marking Information...............................................................................................................................................9
Pin Description .......................................................................................................................................................9
Circuit Description ...............................................................................................................................................10
General Description .............................................................................................................................................. 10
Block Diagram ....................................................................................................................................................... 10
VREF ..................................................................................................................................................................... 10
GPIO ..................................................................................................................................................................... 11
Charge Pump ........................................................................................................................................................ 12
RC Oscillator ......................................................................................................................................................... 13
2-WIRE.................................................................................................................................................................. 14
2-WIRE Communication Format ........................................................................................................................... 14
2-WIRE Address.................................................................................................................................................... 14
ZoomingADC ........................................................................................................................................................15
Features ................................................................................................................................................................ 15
Overview ............................................................................................................................................................... 15
ZADC Description.................................................................................................................................................. 15
Acquisition Chain................................................................................................................................................... 15
Registers ............................................................................................................................................................... 17
ZADC Detailed Functionality Description .............................................................................................................. 18
Continuous-Time vs. On-Request......................................................................................................................... 18
Input Multiplexers .................................................................................................................................................. 19
Programmable Gain Amplifiers ............................................................................................................................. 20
PGA & ADC Enabling............................................................................................................................................ 21
PGA1 ..................................................................................................................................................................... 21
PGA2 ..................................................................................................................................................................... 21
PGA3 ..................................................................................................................................................................... 21
ADC Characteristics .............................................................................................................................................. 22
Conversion Sequence ........................................................................................................................................... 22
Over-Sampling Frequency .................................................................................................................................... 22
Over-Sampling Ratio ............................................................................................................................................. 23
Elementary Conversions ....................................................................................................................................... 23
Resolution ............................................................................................................................................................. 24
Conversion Time and Throughput......................................................................................................................... 25
Output Code Format ............................................................................................................................................. 26
Power Saving Modes ............................................................................................................................................ 27
Registers Map ....................................................................................................................................................... 28
Registers Descriptions .......................................................................................................................................... 28
RC Register........................................................................................................................................................... 28
GPIO Registers ..................................................................................................................................................... 29
ZADC Registers .................................................................................................................................................... 30
Mode Register ....................................................................................................................................................... 31
Optional Operating Modes: External Voltage Reference Option .......................................................................... 32
Application Hints..................................................................................................................................................33
Recommended Operation Mode and Registers Settings...................................................................................... 33
Operation Mode..................................................................................................................................................... 33
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