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AD8803ARZ

更新时间： 2024-11-20 12:53:43
品牌 Logo 应用领域
亚德诺 - ADI 转换器数模转换器光电二极管PC
页数 文件大小 规格书
16页 216K
描述
Octal 8-Bit TrimDAC with Power Shutdown

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AD8803ARZ 数据手册

 浏览型号AD8803ARZ的Datasheet PDF文件第2页浏览型号AD8803ARZ的Datasheet PDF文件第3页浏览型号AD8803ARZ的Datasheet PDF文件第4页浏览型号AD8803ARZ的Datasheet PDF文件第5页浏览型号AD8803ARZ的Datasheet PDF文件第6页浏览型号AD8803ARZ的Datasheet PDF文件第7页 
Octal 8-Bit TrimDAC  
with Power Shutdown  
a
AD8801/AD8803  
FEATURES  
FUNCTIO NAL BLO CK D IAGRAM  
Low Cost  
(D ACs 2–7 O m itted for Clar ity)  
Replaces Eight Potentiom eters  
Eight Individually Program m able Outputs  
Three-Wire Serial Input  
Pow er Shutdow n ≤ 25 ␮W Including IDD and IREF  
Midscale Preset, AD8801  
V
REFH  
V
REFL  
AD8801/AD8803  
V
REFH  
8
8-BIT  
V
V
O1  
DAC 1  
DD  
OUT  
LATCH  
V
REFL  
Separate VREFL Range Setting, AD8803  
+3 V to +5 V Single Supply Operation  
RS  
CK  
GND  
8
1
DAC  
SELECT  
.
.
.
.
.
.
APPLICATIONS  
Autom atic Adjustm ent  
Trim m er Potentiom eter Replacem ent  
Video and Audio Equipm ent Gain and Offset Adjustm ent  
Portable and Battery Operated Equipm ent  
8
ADDRESS  
3
11-BIT  
SERIAL  
LATCH  
D
8
SDI  
RS  
CK  
CLK  
V
REFH  
8-BIT  
LATCH  
8
8
CS  
V
O8  
DAC 8 OUT  
GENERAL D ESCRIP TIO N  
V
REFL  
8
CK RS  
T he AD8801/AD8803 provides eight digitally controlled dc  
voltage outputs. This potentiometer divider TrimDAC® allows  
replacement of the mechanical trimmer function in new designs.  
The AD8801/AD8803 is ideal for dc voltage adjustment  
applications.  
RS  
SHDN  
Easily programmed by serial interfaced microcontroller ports,  
the AD8801 with its midscale preset is ideal for potentiometer  
replacement where adjustments start at a nominal value. Appli-  
cations such as gain control of video amplifiers, voltage con-  
trolled frequencies and bandwidths in video equipment,  
geometric correction and automatic adjustment in CRT com-  
puter graphic displays are a few of the many applications ideally  
suited for these parts. T he AD8803 provides independent con-  
trol of both the top and bottom end of the potentiometer divider  
allowing a separate zero-scale voltage setting determined by the  
VREFL pin. T his is helpful for maximizing the resolution of de-  
vices with a limited allowable voltage control range.  
Internally the AD8801/AD8803 contain eight voltage output  
digital-to-analog converters, sharing a common reference volt-  
age input.  
Each DAC has its own DAC register that holds its output state.  
T hese DAC registers are updated from an internal serial-to-par-  
allel shift register that is loaded from a standard three-wire serial  
input digital interface. Eleven data bits make up the data word  
clocked into the serial input register. T his data word is decoded  
where the first 3 bits determine the address of the DAC register  
to be loaded with the last 8 bits of data. T he AD8801/AD8803  
consumes only 5 µA from 5 V power supplies. In addition, in  
shutdown mode reference input current consumption is also re-  
duced to 5 µA while saving the DAC latch settings for use after  
return to normal operation.  
T he AD8801/AD8803 is available in 16-pin plastic DIP and the  
1.5 mm height SO-16 surface mount packages.  
See the AD 8802/AD 8804 for a twelve channel ver sion of this pr oduct.  
Tr im D AC is a r egister ed tr adem ar k of Analog D evices, Inc.  
REV. A  
Inform ation furnished by Analog Devices is believed to be accurate and  
reliable. However, no responsibility is assum ed by Analog Devices for its  
use, nor for any infringem ents of patents or other rights of third parties  
which m ay result from its use. No license is granted by im plication or  
otherwise under any patent or patent rights of Analog Devices.  
© Analog Devices, Inc., 1995  
One Technology Way, P.O. Box 9106, Norw ood. MA 02062-9106, U.S.A.  
Tel: 617/ 329-4700  
Fax: 617/ 326-8703  
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中文翻译

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AD8803ARZ 替代型号

型号 品牌 替代类型 描述 数据表
AD8803AR-REEL ADI

完全替代

 IC OCTAL, SERIAL INPUT LOADING, 0.6 us SETTLING TIME, 8-BIT DAC, PDSO16, 1.50 MM HEIGHT, S
AD8803AR ADI

完全替代

 Octal 8-Bit TrimDAC with Power Shutdown

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AD8804 ADI

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AD8804_15 ADI

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AD8804AN ADI

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 		12 Channel, 8-Bit TrimDACs with Power Shutdown
AD8804ANZ ROCHESTER

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 		12, SERIAL INPUT LOADING, 0.6us SETTLING TIME, 8-BIT DAC, PDIP20, PLASTIC, DIP-20
AD8804ANZ ADI

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 		12 Channel, 8-Bit TrimDACs with Power Shutdown
AD8804AR ADI

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 		12 Channel, 8-Bit TrimDACs with Power Shutdown
AD8804AR ROCHESTER

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 		12, SERIAL INPUT LOADING, 0.6 us SETTLING TIME, 8-BIT DAC, PDSO20, SOIC-20
AD8804AR-REEL ROCHESTER

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 		12, SERIAL INPUT LOADING, 0.6 us SETTLING TIME, 8-BIT DAC, PDSO20, SOIC-20
AD8804ARU ADI

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 		12 Channel, 8-Bit TrimDACs with Power Shutdown
AD8804ARU ROCHESTER

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 		12, SERIAL INPUT LOADING, 0.6 us SETTLING TIME, 8-BIT DAC, PDSO20, 1 MM HEIGHT, TSSOP-20

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