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参数资料
| 型号： | ADC0805 |
| 厂商： | National Semiconductor Corporation |
| 元件分类： | 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转换器 |
| 文件页数： | 34/41页 |
| 文件大小： | 1118K |
| 代理商： | ADC0805 |
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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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| ADC0801LCN | 8-Bit uP Compatible A/D Converters |
| ADC0802 | 8-Bit, Microprocessor- Compatible, A/D Converters |
| ADC0802LCD | 8-Bit, Microprocessor- Compatible, A/D Converters |
| ADC0802LCN | 8-Bit, Microprocessor- Compatible, A/D Converters |
相关代理商/技术参数 |
参数描述 |
|---|---|
| ADC0805CN | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Analog-to-Digital Converter， 8-Bit |
| ADC0805IN | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Analog-to-Digital Converter， 8-Bit |
| ADC0805LCN | 制造商:OC White Company 功能描述:ADC Single SAR 8-bit Parallel 20-Pin PDIP Rail |
| ADC0805LCN/A+ | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Analog-to-Digital Converter， 8-Bit |
| ADC0805LCN/B+ | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Analog-to-Digital Converter， 8-Bit |
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