參數(shù)資料
型號： EVAL-AD5781SDZ
廠商： Analog Devices Inc
文件頁數(shù)： 14/28頁
文件大?。?/td> 0K
描述： BOARD EVAL FOR AD5781
標(biāo)準(zhǔn)包裝： 1
DAC 的數(shù)量： 1
位數(shù)： 18
數(shù)據(jù)接口： DSP，MICROWIRE?，QSPI?，串行，SPI?
設(shè)置時間： 1µs
DAC 型： 電壓
工作溫度： -40°C ~ 125°C
已供物品： 板，CD
已用 IC / 零件： AD5781
Data Sheet
AD5781
Rev. D | Page 21 of 28
Table 9. Hardware Control Pins Truth Table
LDAC
CLR
RESET
Function
0
The AD5781 is in reset mode. The device cannot be programmed.
The AD5781 is returned to its power-on state. All registers are set to their default values.
0
1
The DAC register is loaded with the clearcode register value, and the output is set accordingly.
0
1
The output is set according to the DAC register value.
1
0
1
The DAC register is loaded with the clearcode register value, and the output is set accordingly.
1
The output is set according to the DAC register value.
0
1
The output remains at the clear code value.
1
The output remains set according to the DAC register value.
0
1
The output remains at the clear code value.
1
The DAC register is loaded with the clearcode register value and the output is set accordingly.
0
1
The DAC register is loaded with the clearcode register value and the output is set accordingly.
1
The output remains at the clear code value.
0
1
The output is set according to the DAC register value.
1
X is don’t care.
ON-CHIP REGISTERS
DAC Register
Table 10 outlines how data is written to and read from the DAC register.
Table 10. DAC Register
MSB
LSB
DB23
DB22
DB21
DB20
DB19
DB2
DB1
DB0
R/W
Register address
DAC register data
R/W
0
1
18-bits of data
1
X is don’t care.
The following equation describes the ideal transfer function of the DAC:
(
)
REFN
REFP
OUT
V
D
V
+
×
=
1
218
where:
VREFN is the negative voltage applied at the VREFNS input pin.
VREFP is the positive voltage applied at the VREFPS input pin.
D is the 18-bit code programmed to the DAC.
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EVAL-AD5821EBZ 功能描述:BOARD EVALUATION FOR AD5821 RoHS:是 類別:編程器，開發(fā)系統(tǒng) >> 評估板 - 數(shù)模轉(zhuǎn)換器 (DAC) 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1 系列:- DAC 的數(shù)量:4 位數(shù):12 采樣率（每秒）:- 數(shù)據(jù)接口:串行，SPI? 設(shè)置時間:3µs DAC 型:電流/電壓 工作溫度:-40°C ~ 85°C 已供物品:板 已用 IC / 零件:MAX5581
EVAL-AD5821EBZ1 制造商:AD 制造商全稱:Analog Devices 功能描述:120 mA, Current Sinking, 10-Bit, I2C DAC
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