参数资料
型号: AD5781BRUZ-REEL7
厂商: Analog Devices Inc
文件页数: 16/28页
文件大小: 0K
描述: IC DAC 18BIT SRL 20TSSOP
产品变化通告: AD57x1 Feature Change 27/Jul/2011
设计资源: 18-Bit Accurate, low noise, precision bipolar DC voltage source (CN0177)
标准包装: 1,000
设置时间: 1µs
位数: 18
数据接口: DSP,MICROWIRE?,QSPI?,串行,SPI?
转换器数目: 1
电压电源: 模拟和数字,双 ±
工作温度: -40°C ~ 125°C
安装类型: 表面贴装
封装/外壳: 20-TSSOP(0.173",4.40mm 宽)
供应商设备封装: 20-TSSOP
包装: 带卷 (TR)
输出数目和类型: *
采样率(每秒): 1M
Data Sheet
AD5781
Rev. D | Page 23 of 28
Software Control Register
This is a write only register in which writing a 1 to a particular bit has the same effect as pulsing the corresponding pin low.
Table 14. Software Control Register
MSB
LSB
DB23
DB22
DB21
DB20
DB19
DB3
DB2
DB1
DB0
R/W
Register address
Software control register data
0
1
0
Reserved
RESET
LDAC2
1
The CLR function has no effect if the LDAC pin is low.
2
The LDAC function has no effect if the CLR pin is low.
Table 15. Software Control Register Functions
Function
Description
LDAC
Setting this bit to 1 updates the DAC register and consequently the DAC output.
CLR
Setting this bit to 1 sets the DAC register to a user defined value (see Table 13) and updates the DAC output. The output
value depends on the DAC register coding that is being used, either binary or twos complement.
RESET
Setting this bit to 1 returns the AD5781 to its power-on state.
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