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參數(shù)資料
| 型號： | MSC1211Y3PAGRG4 |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-BIT, FLASH, 40 MHz, MICROCONTROLLER, PQFP64 |
| 封裝： | GREEN, PLASTIC, TQFP-64 |
| 文件頁數(shù)： | 31/111頁 |
| 文件大?。?/td> | 1113K |
| 代理商： | MSC1211Y3PAGRG4 |
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MSC1211, MSC1212
MSC1213,MSC1214
SBAS323G JUNE 2004 REVISED OCTOBER 2007
www.ti.com
26
OVERVIEW
The MSC1211/12/13/14 ADC structure is shown in
Figure 12. The figure lists the components that make up
the ADC, along with the corresponding special function
register (SFR) associated with each component.
ADC INPUT MULTIPLEXER
The input multiplexer provides for any combination of
differential inputs to be selected as the input channel, as
shown in Figure 13. For example, if AIN0 is selected as the
positive differential input channel, then any other channel
can be selected as the negative differential input channel.
With this method, it is possible to have up to eight fully
differential input channels with common connections
between them. It is also possible to switch the polarity of
the differential input pair to negate any offset voltages. In
addition, current sources are supplied that will source or
sink current to detect open or short circuits on the pins.
TEMPERATURE SENSOR
On-chip diodes provide temperature sensing capability.
When the configuration register for the input MUX is set to
all 1s, the diodes are connected to the inputs of the ADC.
All other channels are open.
BURNOUT DETECT
When the Burnout Detect (BOD) bit is set in the ADC
control configuration register (ADCON0 DCh), two current
sources are enabled. The current source on the positive
input channel sources approximately 2
A of current. The
current source on the negative input channel sinks
approximately 2
A. The current sources allow for the
detection of an open circuit (full-scale reading) or short
circuit (small differential reading) on the selected input
differential pair. The buffer should be on for sensor burnout
detection.
Σ
X
Input
Multiplexer
Temperature
Sensor
Buffer
PGA
Sample
and Hold
ADMUX
D7h
REFOUT/
REFIN+
REFIN
REFOUT/
REFIN+
f
MOD
REFIN
AIN5
AIN6
AIN7
AINCOM
ADCON1
DDh
ADCON2
DEh
ADCON3
DFh
OCR
GCR
ADRES
SUMR
D3h D2h D1h
D6h D5h D4h
DBh DAh D9h
E5h E4h E3h E2h
Offset
Calibration
Register
ADC0N0
DCh
ACLK
F6h
SSCON
E1h
ODAC
E6h
Offset
DAC
Σ ADC
Modulator
FAST
SINC2
SINC3
AUTO
ADC
Result Register
Σ
Summation
Block
V
IN
AIN2
AIN3
AIN4
AIN0
AIN1
f
SAMP
f
DATA
Gain
Calibration
Register
Burnout
Detect
AV
DD
In+
AGND
In
Burnout
Detect
AIPOL.5
A4h
AISTAT.5
A7h
AIE.5
A6h
AIPOL.6
A4h
AISTAT.6
A7h
AIE.6
A6h
Figure 12. MSC1211/12/13/14 ADC Structure
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MSC1211Y3PAGT | 功能描述:數(shù)據(jù)轉(zhuǎn)換系統(tǒng) Precision ADC & DACs w/8051 CPU & Flash RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換速率:0.001 MSPs 分辨率:24 bit 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| MSC1211Y3PAGTG4 | 功能描述:數(shù)據(jù)轉(zhuǎn)換系統(tǒng) 8051 CPU w/ 8kB Mem 24B ADC & Quad 16B RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換速率:0.001 MSPs 分辨率:24 bit 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| MSC1211Y4 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:Precision Analog-to-Digital Converter (ADC) and Digital-to-Analog Converters (DACs) with 8051 Microcontroller and Flash Memory |
| MSC1211Y4PAGR | 功能描述:數(shù)據(jù)轉(zhuǎn)換系統(tǒng) Precision ADC & DACs w/8051 CPU & Flash RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換速率:0.001 MSPs 分辨率:24 bit 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| MSC1211Y4PAGRG4 | 功能描述:數(shù)據(jù)轉(zhuǎn)換系統(tǒng) Precision ADC & DACs w/8051 CPU & Flash RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換速率:0.001 MSPs 分辨率:24 bit 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
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