www.semtech.com/products/ Page 28 ADVANCED COMMUNICATIONS & SENSING DATASHEET SX8725C ZoomingADC fo" />
  • <pre id="4cchr"><span id="4cchr"><tr id="4cchr"></tr></span></pre>
  • <big id="4cchr"></big>
    <ins id="4cchr"><small id="4cchr"></small></ins>
  • 參數(shù)資料
    型號: SX8725CWLTDT
    廠商: Semtech
    文件頁數(shù): 21/68頁
    文件大小: 0K
    描述: IC DAS ADC 16BIT I2C/SRL
    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: 12-WDFN 裸露焊盤
    供應商設備封裝: 12-MLPD-EP(4x4)
    包裝: 標準包裝
    其它名稱: SX8725CWLTDTDKR
    www.semtech.com/products/
    Page 28
    ADVANCED COMMUNICATIONS & SENSING
    DATASHEET
    SX8725C
    ZoomingADC for sensing data acquisition
    Revision 1.01
    January 2011
    Semtech
    7.7 Analog-to-Digital Converter (ADC)
    The main performance characteristics of the ADC (resolution, conversion time, etc.) are determined by three
    programmable parameters. The setting of these parameters and the resulting performances are described later.
    fs :Over-sampling frequency
    OSR :Over-Sampling Ratio
    NELCONV :
    Number of Elementary Conversions
    7.7.1 Conversion Sequence
    A conversion is started each time the bit Start or the Def bit is set. As depicted in Figure 14, a complete analog-to-
    digital conversion sequence is made of a set of NELCONV elementary incremental conversions and a final quantization
    step. Each elementary conversion is made of (OSR+1) over-sampling periods Ts=1/fs, i.e.:
    The result is the mean of the elementary conversion results. An important feature is that the elementary conversions
    are alternatively performed with the offset of the internal amplifiers contributing in one direction and the other to the
    output code. Thus, converter internal offset is eliminated if at least two elementary sequences are performed (i.e. if
    NELCONV >= 2). A few additional clock cycles are also required to initiate and end the conversion properly.
    Equation 13
    Figure 14. Analog-to-Digital Conversion Sequence
    Note
    The internal bandgap reference state may be forced High or Low, or may be set
    to toggle during conversion at either the same rate or half the rate of the
    Elementary Conversion. This may be useful to help eliminate bandgap related
    internal offset voltage and 1/fs noise.
    ]
    [
    /
    )
    1
    (
    s
    f
    OSR
    T
    S
    ELCONV
    +
    =
    Init
    Elementary
    Conversion
    Elementary
    Conversion
    Elementary
    Conversion
    Elementary
    Conversion
    End
    Conversion index
    Offset
    12
    N
    ELCONV-1
    N
    ELCONV
    Conversion
    Result
    +-
    +
    -
    T
    CONV
    Not
    Recommended
    New
    Designs
    相關PDF資料
    PDF描述
    SX8725E083TDT IC DAS PRESS/TEMP SENS 12MLPD
    SY10E445JC IC CONV 4-BIT SER/PAR 28-PLCC
    SY10E446JC TR IC CONV 4-BIT SER/PAR 28-PLCC
    SY54017ARMG TR IC MULTIPLEXER DUAL 1X1 16MLF
    SY54017RMG TR IC MULTIPLEXER DUAL 1X1 16MLF
    相關代理商/技術參數(shù)
    參數(shù)描述
    SX8725E083TDT 功能描述:IC DAS PRESS/TEMP SENS 12MLPD RoHS:是 類別:集成電路 (IC) >> 接口 - 傳感器和探測器接口 系列:ZoomingADC™ 其它有關文件:Automotive Product Guide 產(chǎn)品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:74 系列:- 類型:觸控式傳感器 輸入類型:數(shù)字 輸出類型:數(shù)字 接口:JTAG,串行 電流 - 電源:100µA 安裝類型:表面貼裝 封裝/外殼:20-TSSOP(0.173",4.40mm 寬) 供應商設備封裝:20-TSSOP 包裝:管件
    SX8725E083TRT 功能描述:IC DAS PRESSURE/TEMP SENS 12MLPD RoHS:是 類別:集成電路 (IC) >> 接口 - 傳感器和探測器接口 系列:ZoomingADC™ 其它有關文件:Automotive Product Guide 產(chǎn)品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:74 系列:- 類型:觸控式傳感器 輸入類型:數(shù)字 輸出類型:數(shù)字 接口:JTAG,串行 電流 - 電源:100µA 安裝類型:表面貼裝 封裝/外殼:20-TSSOP(0.173",4.40mm 寬) 供應商設備封裝:20-TSSOP 包裝:管件
    SX8725S 制造商:SEMTECH 制造商全稱:Semtech Corporation 功能描述:ZoomingADC for sensing data acquisition ADVANCED COMMUNICATIONS & SENSING
    SX8725SWLTDT 制造商:Semtech Corporation 功能描述: 制造商:Semtech Corporation 功能描述:1 INPUTS ZOOMING ADC WITH SPI
    SX8733 制造商:SEMTECH 制造商全稱:Semtech Corporation 功能描述:Precision Diode Digital Temperature For Up To 3 External Sensors