參數(shù)資料
型號(hào): AD5781BRUZ-REEL7
廠商: Analog Devices Inc
文件頁(yè)數(shù): 16/28頁(yè)
文件大小: 0K
描述: IC DAC 18BIT SRL 20TSSOP
產(chǎn)品變化通告: AD57x1 Feature Change 27/Jul/2011
設(shè)計(jì)資源: 18-Bit Accurate, low noise, precision bipolar DC voltage source (CN0177)
標(biāo)準(zhǔn)包裝: 1,000
設(shè)置時(shí)間: 1µs
位數(shù): 18
數(shù)據(jù)接口: DSP,MICROWIRE?,QSPI?,串行,SPI?
轉(zhuǎn)換器數(shù)目: 1
電壓電源: 模擬和數(shù)字,雙 ±
工作溫度: -40°C ~ 125°C
安裝類(lèi)型: 表面貼裝
封裝/外殼: 20-TSSOP(0.173",4.40mm 寬)
供應(yīng)商設(shè)備封裝: 20-TSSOP
包裝: 帶卷 (TR)
輸出數(shù)目和類(lèi)型: *
采樣率(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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