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参数资料
| 型号： | DAC8571IDGKR |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | DAC |
| 英文描述： | SERIAL INPUT LOADING, 13 us SETTLING TIME, 16-BIT DAC, PDSO8 |
| 封装： | GREEN, PLASTIC, MSOP-8 |
| 文件页数： | 3/30页 |
| 文件大小： | 825K |
| 代理商： | DAC8571IDGKR |
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THEORY OF OPERATION
D/A SECTION
_
+
Resistor
String
Ref+
Ref-
Reference Voltage
GND
DAC Register
V(SENSE)
VOUT
V
OUT
+ VREF
D
65536
RESISTOR STRING
R
VREF
GND
To Output
Amplifier
DAC8571
SLAS373A – DECEMBER 2002 – REVISED JULY 2003
The architecture of the DAC8571 consists of a string DAC followed by an output buffer amplifier. Figure 27
shows a block diagram of the DAC architecture.
Figure 27. DAC8571 Architecture
The input coding to the DAC8571 is unsigned binary, which gives the ideal output voltage as:
where D = decimal equivalent of the binary code that is loaded to the DAC register; it can range from 0 to 65535.
The resistor string section is shown in Figure 28. It is simply a divide-by-two resistor, followed by a string of
resistors, each of value R. The code loaded into the DAC register determines at which node on the string the
voltage is tapped off to be fed into the output amplifier by closing one of the switches connecting the string to the
amplifier. Because it is a string of resistors, it is assured monotonic.
Figure 28. Resistor String.
11
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DAC8571IDGKRG4 | 功能描述:数模转换器- DAC Lo-Pwr R-To-R Output 16-Bit I2C Input RoHS:否 制造商:Texas Instruments 转换器数量:1 DAC 输出端数量:1 转换速率:2 MSPs 分辨率:16 bit 接口类型:QSPI, SPI, Serial (3-Wire, Microwire) 稳定时间:1 us 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-14 封装:Tube |
| DAC8574 | 制造商:TI 制造商全称:Texas Instruments 功能描述:QUAD, 16-BIT, LOW-POWER, VOLTAGE OUTPUT, I2C INTERFACE DIGITAL-TO-ANALOG CONVERTER |
| DAC8574EVM | 功能描述:数据转换 IC 开发工具 DAC8574 Eval Mod RoHS:否 制造商:Texas Instruments 产品:Demonstration Kits 类型:ADC 工具用于评估:ADS130E08 接口类型:SPI 工作电源电压:- 6 V to + 6 V |
| DAC8574IPW | 功能描述:数模转换器- DAC Lo-Pwr Quad R-To-R Out 16-Bit I2C Input RoHS:否 制造商:Texas Instruments 转换器数量:1 DAC 输出端数量:1 转换速率:2 MSPs 分辨率:16 bit 接口类型:QSPI, SPI, Serial (3-Wire, Microwire) 稳定时间:1 us 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-14 封装:Tube |
| DAC8574IPWG4 | 功能描述:数模转换器- DAC Lo-Pwr Quad R-To-R Out 16-Bit I2C Input RoHS:否 制造商:Texas Instruments 转换器数量:1 DAC 输出端数量:1 转换速率:2 MSPs 分辨率:16 bit 接口类型:QSPI, SPI, Serial (3-Wire, Microwire) 稳定时间:1 us 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-14 封装:Tube |
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