參數(shù)資料
型號： C8051F005DK
廠商： Silicon Laboratories Inc
文件頁數(shù)： 82/171頁
文件大?。?/td> 0K
描述： DEV KIT FOR F005/006/007
標(biāo)準包裝： 1
類型： MCU
適用于相關(guān)產(chǎn)品： Silicon Laboratories C8051 F005/006/007
所含物品： 評估板，電源，USB 線纜，適配器和文檔
產(chǎn)品目錄頁面： 626 (CN2011-ZH PDF)
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C8051F000/1/2/5/6/7
C8051F010/1/2/5/6/7
1.7.
Analog to Digital Converter
The C8051F000/1/2/5/6/7 has an on-chip 12-bit SAR ADC with a 9-channel input multiplexer and programmable
gain amplifier. With a maximum throughput of 100ksps, the ADC offers true 12-bit accuracy with an INL of
1LSB. The ADC in the C8051F010/1/2/5/6/7 is similar, but with 10-bit resolution. Each ADC has a maximum
throughput of 100ksps. Each ADC has an INL of
1LSB, offering true 12-bit accuracy with the C8051F00x, and
true 10-bit accuracy with the C8051F01x. There is also an on-board 15ppm voltage reference, or an external
reference may be used via the VREF pin.
The ADC is under full control of the CIP-51 microcontroller via the Special Function Registers. One input channel
is tied to an internal temperature sensor, while the other eight channels are available externally. Each pair of the
eight external input channels can be configured as either two single-ended inputs or a single differential input. The
system controller can also put the ADC into shutdown to save power.
A programmable gain amplifier follows the analog multiplexer. The gain can be set in software from 0.5 to 16 in
powers of 2. The gain stage can be especially useful when different ADC input channels have widely varied input
voltage signals, or when it is necessary to “zoom in” on a signal with a large DC offset (in differential mode, a DAC
could be used to provide the DC offset).
Conversions can be started in four ways; a software command, an overflow on Timer 2, an overflow on Timer 3, or
an external signal input. This flexibility allows the start of conversion to be triggered by software events, external
HW signals, or convert continuously. A completed conversion causes an interrupt, or a status bit can be polled in
software to determine the end of conversion. The resulting 10 or 12-bit data word is latched into two SFRs upon
completion of a conversion. The data can be right or left justified in these registers under software control.
Compare registers for the ADC data can be configured to interrupt the controller when ADC data is within a
specified window. The ADC can monitor a key voltage continuously in background mode, but not interrupt the
controller unless the converted data is within the specified window.
Figure 1.10. ADC Diagram
100ksps
SAR
ADC
+
-
Control & Data
SFR's
SFR Bus
+
-
+
-
+
-
9-to-1
AMUX
(SE or
DIFF)
+
-
X
AIN0
AIN1
AIN2
AIN3
AIN4
AIN5
AIN6
AIN7
TEMP
SENSOR
Programmable
Gain Amp
VREF
REF
(not bonded out on
F002, F007, F012,
and F017
Rev. 1.7
18
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
C8051F005DK-A 功能描述:DEV KIT FOR C8051F005/F006/F007 RoHS:否 類別:編程器，開發(fā)系統(tǒng) >> 過時/停產(chǎn)零件編號 系列:- 標(biāo)準包裝:1 系列:- 類型:MCU 適用于相關(guān)產(chǎn)品:Freescale MC68HC908LJ/LK（80-QFP ZIF 插口） 所含物品:面板、纜線、軟件、數(shù)據(jù)表和用戶手冊 其它名稱:520-1035
C8051F005DK-B 功能描述:DEV KIT FOR C8051F005/F006/F007 RoHS:否 類別:編程器，開發(fā)系統(tǒng) >> 過時/停產(chǎn)零件編號 系列:- 標(biāo)準包裝:1 系列:- 類型:MCU 適用于相關(guān)產(chǎn)品:Freescale MC68HC908LJ/LK（80-QFP ZIF 插口） 所含物品:面板、纜線、軟件、數(shù)據(jù)表和用戶手冊 其它名稱:520-1035
C8051F005DK-E 功能描述:DEV KIT FOR C8051F005/F006/F007 RoHS:否 類別:編程器，開發(fā)系統(tǒng) >> 過時/停產(chǎn)零件編號 系列:- 標(biāo)準包裝:1 系列:- 類型:MCU 適用于相關(guān)產(chǎn)品:Freescale MC68HC908LJ/LK（80-QFP ZIF 插口） 所含物品:面板、纜線、軟件、數(shù)據(jù)表和用戶手冊 其它名稱:520-1035
C8051F005DK-H 功能描述:DEV KIT FOR C8051F005/F006/F007 RoHS:否 類別:編程器，開發(fā)系統(tǒng) >> 過時/停產(chǎn)零件編號 系列:- 標(biāo)準包裝:1 系列:- 類型:MCU 適用于相關(guān)產(chǎn)品:Freescale MC68HC908LJ/LK（80-QFP ZIF 插口） 所含物品:面板、纜線、軟件、數(shù)據(jù)表和用戶手冊 其它名稱:520-1035
C8051F005DK-J 功能描述:DEV KIT FOR C8051F005/F006/F007 RoHS:否 類別:編程器，開發(fā)系統(tǒng) >> 過時/停產(chǎn)零件編號 系列:- 標(biāo)準包裝:1 系列:- 類型:MCU 適用于相關(guān)產(chǎn)品:Freescale MC68HC908LJ/LK（80-QFP ZIF 插口） 所含物品:面板、纜線、軟件、數(shù)據(jù)表和用戶手冊 其它名稱:520-1035
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