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參數(shù)資料
| 型號(hào)： | AD5791BRUZ |
| 廠商： | Analog Devices Inc |
| 文件頁(yè)數(shù)： | 15/29頁(yè) |
| 文件大?。?/td> | 0K |
| 描述： | IC DAC 20BIT SRL 20TSSOP |
| 產(chǎn)品變化通告： | AD57x1 Feature Change 27/Jul/2011 |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 設(shè)置時(shí)間： | 1µs |
| 位數(shù)： | 20 |
| 數(shù)據(jù)接口： | DSP，MICROWIRE?，QSPI?，串行，SPI? |
| 轉(zhuǎn)換器數(shù)目： | 1 |
| 電壓電源： | 雙 ± |
| 工作溫度： | -40°C ~ 125°C |
| 安裝類型： | 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： | 管件 |
| 輸出數(shù)目和類型： | * |
| 采樣率（每秒）： | * |
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Data Sheet
AD5791
Rev. D | Page 21 of 28
Table 9. Hardware Control Pins Truth Table
LDAC
CLR
RESET
Function
0
The AD5791 is in reset mode. The device cannot be programmed.
The AD5791 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
DB0
R/W
Register address
DAC register data
R/W
0
1
20-bits of data
The following equation describes the ideal transfer function of the DAC:
(
)
REFN
REFP
OUT
V
D
V
+
×
=
1
220
where:
VREFN is the negative voltage applied at the VREFN input pins.
VREFP is the positive voltage applied at the VREFP input pins.
D is the 20-bit code programmed to the DAC.
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| AD5791SRU-EP | 功能描述:數(shù)模轉(zhuǎn)換器- DAC 20bit 2LSB Unbuffered Ref EP MILA TEMP RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換器數(shù)量:1 DAC 輸出端數(shù)量:1 轉(zhuǎn)換速率:2 MSPs 分辨率:16 bit 接口類型:QSPI, SPI, Serial (3-Wire, Microwire) 穩(wěn)定時(shí)間:1 us 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-14 封裝:Tube |
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| AD579ZJN | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
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