參數(shù)資料
型號： ADS1286P
元件分類： ADC
英文描述： Analog-to-Digital Converter??? 12-Bit
中文描述： 12位模數(shù)轉(zhuǎn)換器
文件頁數(shù)： 32/42頁
文件大?。?/td> 872K
代理商： ADS1286P
ADS1212, 1213
SBAS064A
32
Four-Wire Interface
Figure 30 shows a four-wire interface with a 8xC32 micro-
processor. Again, the Slave Mode is being used.
Multi-Wire Interface
Figures 31 and 32 show multi-wire interfaces with a 8xC51
or 68HC11 microprocessor. In these interfaces, the mode of
the ADS1212/13 is actually controlled dynamically. This
could be extremely useful when the ADS1212/13 is to be
used in a wide variety of ways. For example, it might be
desirable to have the ADS1212/13 produce data at a steady
rate and to have the converter operating in the Continuous
Read Mode. But for system calibration, the Slave Mode
might be preferred because multiple instructions can be
issued per conversion period.
Note that the MODE input should not be changed in the
middle of a serial transfer. This could result in misoperation
of the device. A Master/Slave Mode change will not affect
the output data.
Note that the X
IN
input can also be controlled. It is possible
with some microcontrollers and digital signal processors to
produce a continuous serial clock, which could be connected
to the X
IN
input. The frequency of the clock is often settable
over some range. Thus, the power dissipation of the
ADS1212/13 could be dynamically varied by changing both
the Turbo Mode and X
IN
input-trading off conversion speed
and resolution for power consumption.
I/O Recovery
If serial communication stops during an instruction or data
transfer for longer than 4 t
DATA
, the ADS1212/13 will reset
its serial interface. This will not affect the internal registers.
The main controller must not continue the transfer after this
event, but must re-start the transfer from the beginning.
This feature is very useful if the main controller can be reset
at any point. After reset, simply wait 8 t
DATA
before
starting serial communication.
FIGURE 31. Full Interface with a 8xC51 Microprocessor.
ADS1212
A
IN
P
A
IN
N
AGND
V
BIAS
CS
DSYNC
X
IN
X
OUT
DGND
REF
IN
REF
OUT
AV
DD
MODE
DRDY
SDOUT
SDIO
SCLK
DV
DD
P1.0
P1.1
P1.2
P1.3
P1.4
P1.5
P1.6
P1.7
V
CC
P0.0
P0.1
P0.2
P0.3
P0.4
P0.5
P0.6
8xC51
C
2
6pF
C
1
6pF
XTAL
AGND
DGND
AV
DD
DV
DD
DGND
AGND
1.0μF
R
2
10k
R
1
10k
FIGURE 30. Four-Wire Interface with a 8xC32 Microprocessor.
DGND
ADS1212
A
IN
P
A
IN
N
AGND
V
BIAS
CS
DSYNC
X
IN
X
OUT
DGND
REF
IN
REF
OUT
AV
DD
MODE
DRDY
SDOUT
SDIO
SCLK
DV
DD
P1.0
P1.1
P1.2
P1.3
P1.4
P1.5
P1.6
P1.7
RESET
RXD
TXD
INT0
INT1
WR
RD
X2
X1
V
SS
8xC32
C
2
27pF
C
1
27pF
DV
DD
AGND
DGND
AV
DD
DV
DD
D
CLK
Q
Q
D
CLK
Q
Q
1/2 74HC74
1/2 74HC74
XTAL
AGND
1.0μF
R
1
10k
相關(guān)PDF資料
PDF描述
ADS1286PA Analog-to-Digital Converter??? 12-Bit
ADS1286PB Analog-to-Digital Converter??? 12-Bit
ADS1286PC Analog-to-Digital Converter??? 12-Bit
ADS1286PK Analog-to-Digital Converter??? 12-Bit
ADS1286PL Analog-to-Digital Converter??? 12-Bit
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ADS1286P 制造商:Texas Instruments 功能描述:IC 12BIT ADC 200 KHZ PDIP8 1286
ADS1286PA 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12bit 200KHz Unipol RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32
ADS1286PA 制造商:BURR-BROWN 功能描述:IC 12BIT ADC 1286 DIP8 制造商:Texas Instruments 功能描述:Analog-Digital Converter IC Number of Bi
ADS1286PAG4 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12B Micro Pwr Sampling ADC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32
ADS1286PB 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-Bit Micro Power Sampling RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32
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