- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄17111 > EVAL-ADUC832QSZ (Analog Devices Inc)KIT DEV FOR ADUC832 QUICK START PDF資料下載
參數(shù)資料
| 型號： | EVAL-ADUC832QSZ |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 29/92頁 |
| 文件大小： | 0K |
| 描述： | KIT DEV FOR ADUC832 QUICK START |
| 產(chǎn)品培訓(xùn)模塊： | Process Control |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 系列： | QuickStart™ 套件 |
| 類型： | MCU |
| 適用于相關(guān)產(chǎn)品： | ADuC832 |
| 所含物品： | 評估板，線纜，電源，軟件和文檔 |
| 其它名稱： | EVAL-ADUC832QS EVAL-ADUC832QS-ND |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁當(dāng)前第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁第69頁第70頁第71頁第72頁第73頁第74頁第75頁第76頁第77頁第78頁第79頁第80頁第81頁第82頁第83頁第84頁第85頁第86頁第87頁第88頁第89頁第90頁第91頁第92頁
Data Sheet
ADuC832
Rev. B | Page 35 of 92
ADC CIRCUIT INFORMATION
GENERAL OVERVIEW
The ADC conversion block incorporates a fast, 8-channel,
12-bit, single-supply ADC. This block provides the user with
multichannel mux, track/hold, on-chip reference, calibration
features, and an ADC. All components in this block are easily
configured via a three-register SFR interface.
The ADC consists of a conventional successive approximation
converter based around a capacitor DAC. The converter accepts
an analog input range of 0 V to VREF. A high precision, low drift,
and factory calibrated 2.5 V reference is provided on-chip. An
external reference can be connected as described in the Voltage
Reference Connections section. This external reference can be
in the range of 1 V to AVDD.
Single step or continuous conversion modes can be initiated in
software or alternatively by applying a convert signal to an
external pin. Timer 2 can also be configured to generate a
repetitive trigger for ADC conversions. The ADC can be
configured to operate in a DMA mode whereby the ADC block
continuously converts and captures samples to an external
RAM space without any interaction from the MCU core. This
automatic capture facility can extend through a 16 MB external
data memory space.
The ADuC832 is shipped with factory programmed calibration
coefficients that are automatically downloaded to the ADC on
power-up, ensuring optimum ADC performance. The ADC
core contains internal offset and gain calibration registers that
can be hardware calibrated to minimize system errors.
A voltage output from an on-chip band gap reference propor-
tional to absolute temperature can also be routed through the
front-end ADC multiplexer (effectively a ninth ADC channel
input) facilitating a temperature sensor implementation.
ADC TRANSFER FUNCTION
The analog input range for the ADC is 0 V to VREF. For this range,
the designed code transitions occur midway between successive
integer LSB values (that is, 1/2 LSB, 3/2 LSBs, 5/2 LSBs…FS
3/2 LSBs). The output coding is straight binary with 1 LSB =
FS/4096 or 2.5 V/4096 = 0.61 mV when VREF = 2.5 V. The ideal
input/output transfer characteristic for the 0 V to VREF range is
shown in Figure 37.
OUTPUT
CODE
111...111
111...110
111...101
111...100
000...011
000...010
000...001
000...000
0V 1LSB
+FS
–1LSB
VOLTAGE INPUT
1LSB =
FS
4096
02987-
026
Figure 37. ADC Transfer Function
TYPICAL OPERATION
Once configured via the ADCCON1 to ADCCON3 SFRs, the
ADC converts the analog input and provides an ADC 12-bit
result word in the ADCDATAH/ADCDATAHL SFRs. The top
four bits of the ADCDATAH SFR are written with the channel
selection bits to identify the channel result. The format of the ADC
12-bit result word is shown in Figure 38.
CH–ID
TOP 4 BITS
HIGH 4 BITS OF
ADC RESULT WORD
LOW 8 BITS OF THE
ADC RESULT WORD
ADCDATAH SFR
ADCDATAL SFR
02987-
027
Figure 38. ADC Result Format
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| HBM15DRXS | CONN EDGECARD 30POS DIP .156 SLD |
| PCX1H270MCL1GS | CAP ALUM 27UF 50V 20% SMD |
| HSM08DRKI | CONN EDGECARD 16POS DIP .156 SLD |
| 0210490857 | CABLE JUMPER 1.25MM .051M 17POS |
| EVAL-ADUC831QSZ | KIT DEV FOR ADUC831 QUICK START |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| EVAL-ADUC834QS | 制造商:Analog Devices 功能描述:DATA ACQ SYS, MICROCNVRTR, DUAL 16BIT/24BIT - ADCS W/ EMBEDD - Bulk 制造商:Analog Devices 功能描述:8052 ADUC834 QUICKSTART DEV KIT |
| EVAL-ADUC834QSZ | 功能描述:KIT DEV QUICK START ADUC834 RoHS:是 類別:編程器，開發(fā)系統(tǒng) >> 通用嵌入式開發(fā)板和套件（MCU、DSP、FPGA、CPLD等） 系列:QuickStart™ 套件 標(biāo)準(zhǔn)包裝:1 系列:PICDEM™ 類型:MCU 適用于相關(guān)產(chǎn)品:PIC10F206，PIC16F690，PIC16F819 所含物品:板，線纜，元件，CD，PICkit 編程器 產(chǎn)品目錄頁面:659 (CN2011-ZH PDF) |
| EVAL-ADUC836QS | 制造商:Analog Devices 功能描述:MCU 8BIT 8052 CISC 62KB+4KB FLASH 3.6V 48LQFP - Bulk 制造商:Analog Devices 功能描述:KIT- ADUC836 DEV SYSTEM |
| EVAL-ADUC841QS | 制造商:AD 制造商全稱:Analog Devices 功能描述:MicroConverter 12-Bit ADCs and DACs with Embedded High Speed 62-kB Flash MCU |
| EVAL-ADUC841QSP2 | 制造商:AD 制造商全稱:Analog Devices 功能描述:MicroConverter 12-Bit ADCs and DACs with Embedded High Speed 62-kB Flash MCU |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。