参数资料
型号: DAC8531EVM
厂商: Texas Instruments
文件页数: 3/27页
文件大小: 0K
描述: EVAL MOD FOR DAC8531
产品培训模块: Data Converter Basics
标准包装: 1
DAC 的数量: 1
位数: 16
数据接口: SPI?、QSPI?、MICROWIRE? 和 DSP
设置时间: 8µs
DAC 型: 电压
工作温度: -40°C ~ 105°C
已供物品:
已用 IC / 零件: DAC8531
产品目录页面: 900 (CN2011-ZH PDF)
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其它名称: 296-13548
DAC8531
11
SBAS192B
www.ti.com
THEORY OF OPERATION
DAC SECTION
The architecture consists of a string DAC followed by an
output buffer amplifier. Figure 1 shows a block diagram of the
DAC architecture.
CODE CHANGE GLITCH
Time (2
s/div)
V
OUT
(20mV/div)
Glitch Waveform (20mV/div)
TYPICAL CHARACTERISTICS: VDD = 2.7V (Cont.)
At TA = +25°C, VDD = 2.7V, unless otherwise noted.
RESISTOR STRING
Figure 2 shows the resistor string section. It is simply 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. It is
ensured monotonic because it is a string of resistors.
FIGURE 1. DAC8531 Architecture.
The input coding to the DAC8531 is straight binary, so the
ideal output voltage is given by:
VV
D
OUT
REF
=
65536
where D = decimal equivalent of the binary code that is
loaded to the DAC register; it can range from 0 to 65535.
FIGURE 2. Resistor String.
DAC Register
REF (+)
Resistor String
REF(–)
Output
Amplifier
GND
V
DD
V
OUT
V
FB
To Output
Amplifier
R
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相关代理商/技术参数
参数描述
DAC8531IDRB 制造商:Texas Instruments 功能描述:
DAC8531IDRBR 功能描述:数模转换器- DAC Lo-Pwr R-to-R Out 16-Bit Serial 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
DAC8531IDRBRG4 功能描述:数模转换器- DAC Lo-Pwr R-to-R Out 16-Bit Serial 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
DAC8531IDRBT 功能描述:数模转换器- DAC Lo-Pwr R-to-R Out 16-Bit Serial 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
DAC8531IDRBTG4 功能描述:数模转换器- DAC Lo-Pwr R-to-R Out 16-Bit Serial 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