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參數(shù)資料
| 型號： | AD-C0838CCN |
| 廠商： | National Semiconductor Corporation |
| 元件分類： | 串行ADC |
| 英文描述： | 8-Bit Serial I/O A/D Converters with Multiplexer Options |
| 中文描述： | 8位串行I /辦公自動化/ D轉(zhuǎn)換器多路復(fù)用選項 |
| 文件頁數(shù)： | 14/32頁 |
| 文件大?。?/td> | 678K |
| 代理商： | AD-C0838CCN |
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Functional Description
(Continued)
TABLE 6. MUX Addressing: ADC0832
Single-Ended MUX Mode
MUX Address
SGL/
ODD/
DIF
SIGN
1
0
1
1
Channel
#
0
1
+
+
COM is internally tied to A GND
TABLE 7. MUX Addressing: ADC0832
Differential MUX Mode
MUX Address
SGL/
ODD/
DIF
SIGN
0
0
0
1
Channel
#
0
1
+
+
Since the input configuration is under software control, it can
be modified, as required, at each conversion. A channel can
be treated as a single-ended, ground referenced input for
one conversion; then it can be reconfigured as part of a dif-
ferential channel for another conversion. Figure 1 illustrates
the input flexibility which can be achieved.
The analog input voltages for each channel can range from
50 mV below ground to 50 mV above V
CC
(typically 5V) with-
out degrading conversion accuracy.
2.0 THE DIGITAL INTERFACE
A most important characteristic of these converters is their
serial data link with the controlling processor. Using a serial
communication format offers two very significant system im-
provements; it allows more function to be included in the
converter package with no increase in package size and it
can eliminate the transmission of low level analog signals by
locating the converter right at the analog sensor; transmitting
highly noise immune digital data back to the host processor.
To understand the operation of these converters it is best to
refer to the Timing Diagrams and Functional Block Diagram
and to follow a complete conversion sequence. For clarity a
separate diagram is shown of each device.
1.Aconversion is initiated by first pulling the CS (chip select)
line low. This line must be held low for the entire conversion.
The converter is now waiting for a start bit and its MUX as-
signment word.
2. A clock is then generated by the processor (if not provided
continuously) and output to the A/D clock input.
www.national.com
14
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| ADC0831 | 8-Bit Serial I/O A/D Converters with Multiplexer Options(8位串行輸入/輸出帶多路選擇A/D轉(zhuǎn)換器) |
| AD101 | Circular Connector; No. of Contacts:6; Series:LJTPQ00R; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:11; Circular Contact Gender:Pin; Circular Shell Style:Wall Mount Receptacle; Insert Arrangement:11-98 |
| AD109 | Circular Connector; No. of Contacts:26; Series:LJTPQ00R; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:17; Circular Contact Gender:Pin; Circular Shell Style:Wall Mount Receptacle |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ADC0838CCN | 制造商:Texas Instruments 功能描述:IC 8BIT ADC SERIAL DIP20 838 |
| ADC0838CCN/A+ | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Analog-to-Digital Converter， 8-Bit |
| ADC0838CCN/B+ | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Analog-to-Digital Converter， 8-Bit |
| ADC0838CCN/NOPB | 功能描述:模數(shù)轉(zhuǎn)換器 - 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(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| ADC0838CCN/SL160884 | 制造商:Texas Instruments 功能描述: |
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