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參數(shù)資料
| 型號： | SX8724E082TRT |
| 廠商： | Semtech |
| 文件頁數(shù)： | 12/53頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC DAS PRESSURE/TEMP SENS 16MLPQ |
| 標準包裝： | 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： | 16-VQFN 裸露焊盤 |
| 供應商設備封裝： | 16-MLPQ（4x4） |
| 包裝： | 標準包裝 |
| 配用： | XE8000EV121-ND - BOARD EVAL FOR SX8723/24 |
| 其它名稱： | SX8724E082DKR |
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ADVANCED COMMUNICATIONS & SENSING
V1.23 2009 Semtech Corp.
www.semtech.com
2
SX8724
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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