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參數(shù)資料
| 型號： | ADC0802 |
| 廠商： | National Semiconductor Corporation |
| 元件分類： | 串行ADC |
| 英文描述： | 8-Bit uP Compatible A/D Converters |
| 中文描述： | 8位的兼容的A / D轉換器 |
| 文件頁數(shù)： | 34/41頁 |
| 文件大?。?/td> | 1118K |
| 代理商： | ADC0802 |
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Functional Description
(Continued)
any output of Port B will source current into node V
thus
raising the voltage at V
and making the output differential
more negative. Conversely, a logic “0” (0V) will pull current
out of node V
and decrease the voltage, causing the differ-
ential output to become more positive. For the resistor val-
ues shown, V
can move
±
12 mV with a resolution of 50 μV,
which will null the offset error term to
1
4
LSB of full-scale for
theADC0801. It is important that the voltage levels that drive
the auto-zero resistors be constant. Also, for symmetry, a
logic swing of 0V to 5V is convenient. To achieve this, a
CMOS buffer is used for the logic output signals of Port B
and this CMOS package is powered with a stable 5V source.
Buffer amplifier A1 is necessary so that it can source or sink
the D/A output current.
DS005671-91
Note 26:
R2 = 49.5 R1
Note 27:
Switches are LMC13334 CMOS analog switches.
Note 28:
The 9 resistors used in the auto-zero section can be
±
5% tolerance.
FIGURE 18. Gain of 100 Differential Transducer Preamp
A
www.national.com
34
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| ADC0802LCN | 8-Bit uP Compatible A/D Converters |
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| ADC0802LCWM | 8-Bit uP Compatible A/D Converters |
| ADC0801LCN | 8-Bit uP Compatible A/D Converters |
| ADC0802 | 8-Bit, Microprocessor- Compatible, A/D Converters |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| ADC0802LCD | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:8-Bit, Microprocessor- Compatible, A/D Converters |
| ADC0802LCD/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 |
| ADC0802LCJ | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:8-Bit uP Compatible A/D Converters |
| ADC0802LCJ/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 |
| ADC0802LCN | 功能描述:模數(shù)轉換器 - ADC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結構:Sigma-Delta 轉換速率: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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