參數(shù)資料
型號： AD7949BCPZRL7
廠商： Analog Devices Inc
文件頁數(shù)： 23/32頁
文件大?。?/td> 0K
描述： IC ADC 14BIT 250KSPS 8CH 20LFCSP
產(chǎn)品培訓(xùn)模塊： Power Line Monitoring
產(chǎn)品變化通告： Startup Circuitry Design Improvement Change 15/April/2009
標(biāo)準(zhǔn)包裝： 1,500
系列： PulSAR®
位數(shù)： 14
采樣率（每秒）： 250k
數(shù)據(jù)接口： DSP，MICROWIRE?，QSPI?，串行，SPI?
轉(zhuǎn)換器數(shù)目： 1
功率耗散（最大）： 15.5mW
電壓電源： 單電源
工作溫度： -40°C ~ 85°C
安裝類型： 表面貼裝
封裝/外殼： 20-VFQFN 裸露焊盤，CSP
供應(yīng)商設(shè)備封裝： 20-LFCSP-VQ
包裝： 帶卷 (TR)
輸入數(shù)目和類型： *
Data Sheet
AD7949
Rev. D | Page 3 of 32
REVISION HISTORY
3/12—Rev. C to Rev. D
Changes to Figure 26 ......................................................................16
Changes to Internal Reference/Temperature Sensor Section....19
Changes to External Reference and Internal Buffer Section.....20
Changes to Bits[5:3] Function, Table 9.........................................24
Updated Outline Dimensions........................................................32
8/11—Rev. B to Rev. C
Changes to Internal Reference Section ........................................18
Changes to External Reference and Internal Buffer Section and
External Reference Section ............................................................19
Changes to Bits[5:3] Function, Table 9.........................................22
5/09—Rev. A to Rev. B
Changes to Features Section, Applications Section, and
Figure 1 ...............................................................................................1
Changes to Specifications Section...................................................3
Changes to Timing Specifications Section.....................................5
Changes to Table 5 ............................................................................7
Changes to Figure 4 and Table 6 .....................................................8
Changes to Figure 20 ......................................................................11
Changes to Converter Operation Section....................................13
Changes to Table 7 ..........................................................................14
Changes to Figure 25 and Figure 26 .............................................15
Changes to Bipolar Single Supply Section, Input Structure
Section, and Selectable Low-Pass Filter Section .........................16
Changes to Input Configurations Section, Sequencer Section,
and Source Resistance Section.......................................................17
Changes to Internal Reference/Temperature Sensor Section....18
Added Figure 30; Renumbered Sequentially...............................18
Changes to External Reference and Internal Buffer Section,
External Reference Section, and Reference Decoupling
Section ..............................................................................................19
Added Figure 31 and Figure 32.....................................................19
Changes to Power Supply Section.................................................20
Changed Reading/Writing During Conversion, Fast Hosts
Section to Reading/Writing After Conversion,
Any Speed Hosts .............................................................................21
Changes to Configuration Register, CFG Section and
Table 9...............................................................................................22
Added General Timing Without a Busy Indicator Section and
Figure 36...........................................................................................23
Added General Timing with a Busy Indicator Section and
Figure 37...........................................................................................24
Added Channel Sequencer Section, Examples Section, and
Figure 38...........................................................................................25
Changes to Read/Write Spanning Conversion Without a Busy
Indicator Section and Figure 40 ....................................................26
Changes to Read/Write Spanning Conversion with a Busy
Indicator Section and Figure 42 ....................................................27
Changes to Evaluating AD7949 Performance Section...............28
Added Exposed Pad Notation to Outline Dimensions..............29
Changes to Ordering Guide...........................................................29
5/08—Rev. 0 to Rev. A
Changes to Ordering Guide...........................................................26
5/08—Revision 0: Initial Version
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