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AD7834AR-REEL

更新时间： 2024-11-30 13:05:23
品牌 Logo 应用领域
亚德诺 - ADI /
页数 文件大小 规格书
16页 406K
描述
IC QUAD, SERIAL INPUT LOADING, 10 us SETTLING TIME, 14-BIT DAC, PDSO28, MS-013AE, SOIC-28, Digital to Analog Converter

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AD7834AR-REEL 数据手册

 浏览型号AD7834AR-REEL的Datasheet PDF文件第2页浏览型号AD7834AR-REEL的Datasheet PDF文件第3页浏览型号AD7834AR-REEL的Datasheet PDF文件第4页浏览型号AD7834AR-REEL的Datasheet PDF文件第5页浏览型号AD7834AR-REEL的Datasheet PDF文件第6页浏览型号AD7834AR-REEL的Datasheet PDF文件第7页 
LC2MOS  
Quad 14-Bit DAC  
a
AD7834/AD7835  
FEATURES  
GENERAL DESCRIPTION  
Four 14-Bit DACs in One Package  
AD7834—Serial Loading  
AD7835—Parallel 8-/14-Bit Loading  
Voltage Outputs  
The AD7834 and AD7835 contain four 14-bit DACs on one  
monolithic chip. The AD7834 and AD7835 have output volt-  
ages in the range of ±8.192 V with a maximum span of 14 V.  
The AD7834 is a serial input device. Data is loaded in 16-bit  
format from the external serial bus, MSB first after two leading  
0s, into one of the input latches via DIN, SCLK and FSYNC.  
The AD7834 has five dedicated package address pins, PA0–  
PA4, that can be wired to AGND or VCC to permit up to 32  
AD7834s to be individually addressed in a multipackage  
application.  
Power-On Reset Function  
Max/Min Output Voltage Range of +/–8.192 V  
Maximum Output Voltage Span of 14 V  
Common Voltage Reference Inputs  
User Assigned Device Addressing  
Clear Function to User-Defined Voltage  
Surface Mount Packages  
The AD7835 can accept either 14-bit parallel loading or  
double-byte loading, where right-justified data is loaded in one  
8-bit and one 6-bit byte. Data is loaded from the external bus  
into one of the input latches under the control of the WR, CS,  
BYSHF and DAC channel address pins, A0–A2.  
AD7834—28-Pin SO, DIP and Cerdip  
AD7835—44-Pin PQFP and PLCC  
APPLICATIONS  
Process Control  
Automatic Test Equipment  
General Purpose Instrumentation  
With either device, the LDAC signal can be used to update  
either all four DAC outputs simultaneously or individually,  
on reception of new data. In addition, for either device, the  
asynchronous CLR input can be used to set all signal outputs,  
VOUT1–VOUT4, to the user-defined voltage level on the Device  
Sense Ground pin, DSG. On power-on, before the power sup-  
plies have stabilized, internal circuitry holds the DAC output  
voltage levels to within ±2 V of the DSG potential. As the sup-  
plies stabilize, the DAC output levels move to the exact DSG  
potential (assuming CLR is exercised).  
The AD7834 is available in 28-pin 0.3" SO and 0.6" DIP pack-  
ages, and the AD7835 is available in a 44-pin PQFP package  
and a 44-pin PLCC package.  
AD7835 FUNCTIONAL BLOCK DIAGRAM  
AD7834 FUNCTIONAL BLOCK DIAGRAM  
V
(–)A  
V
V
V
V
(+)A  
REF  
V
V (–)  
V
REF  
V
V
(+)  
DSG A  
REF  
CC  
DD  
SS  
CC  
DD  
SS  
REF  
INPUT  
REGISTER  
1
INPUT  
REGISTER  
1
AD7835  
AD7834  
DAC 1  
LATCH  
DAC 1  
LATCH  
DAC 1  
DAC 2  
DAC 1  
DAC 2  
BYSHF  
PAEN  
X1  
X1  
X1  
X1  
V
1
2
V
1
2
OUT  
OUT  
14  
DB13  
DB0  
PA0  
PA1  
PA2  
PA3  
PA4  
INPUT  
BUFFER  
INPUT  
REGISTER  
2
INPUT  
REGISTER  
2
DAC 2  
LATCH  
DAC 2  
LATCH  
CONTROL  
LOGIC  
V
V
OUT  
OUT  
WR  
CS  
&
ADDRESS  
DECODE  
INPUT  
REGISTER  
3
INPUT  
REGISTER  
3
DAC 3  
LATCH  
DAC 3  
LATCH  
DAC 3  
DAC 4  
DAC 3  
DAC 4  
X1  
X1  
V
3
4
X1  
X1  
V
3
4
OUT  
OUT  
FSYNC  
A0  
A1  
A2  
INPUT  
REGISTER  
4
INPUT  
REGISTER  
4
ADDRESS  
DECODE  
DAC 4  
LATCH  
DAC 4  
LATCH  
SERIAL-TO-  
PARALLEL  
CONVERTER  
DIN  
V
V
OUT  
OUT  
CLR  
SCLK  
CLR  
AGND  
DGND  
DSG  
LDAC  
DSG B  
(+)B  
REF  
AGND  
V
V (–)B  
REF  
DGND  
LDAC  
REV. A  
Information furnished by Analog Devices is believed to be accurate and  
reliable. However, no responsibility is assumed by Analog Devices for its  
use, nor for any infringements of patents or other rights of third parties  
which may result from its use. No license is granted by implication or  
otherwise under any patent or patent rights of Analog Devices.  
© Analog Devices, Inc., 1995  
One Technology Way, P.O. Box 9106, Norwood. MA 02062-9106, U.S.A.  
Tel: 617/329-4700 Fax: 617/326-8703  
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AD7834AR-REEL 替代型号

型号 品牌 替代类型 描述 数据表
AD7834ARZ ADI

完全替代

 LC2MOS Quad 14-Bit DAC
AD7834BRZ ADI

完全替代

 暂无描述

与AD7834AR-REEL相关器件

型号 品牌 获取价格 描述 数据表
AD7834ARZ ADI

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 		LC2MOS Quad 14-Bit DAC
AD7834ARZ-REEL ROCHESTER

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 		QUAD, SERIAL INPUT LOADING, 10 us SETTLING TIME, 14-BIT DAC, PDSO28, ROHS COMPLIANT, MS-01
AD7834BN ADI

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 		LC2MOS Quad 14-Bit DAC
AD7834BN ROCHESTER

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 		QUAD, SERIAL INPUT LOADING, 10 us SETTLING TIME, 14-BIT DAC, PDIP28, PLASTIC, MS-011, DIP-
AD7834BNZ ROCHESTER

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 		QUAD, SERIAL INPUT LOADING, 10 us SETTLING TIME, 14-BIT DAC, PDIP28, ROHS COMPLIANT, PLAST
AD7834BR ADI

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 		LC2MOS Quad 14-Bit DAC
AD7834BR ROCHESTER

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 		QUAD, SERIAL INPUT LOADING, 10 us SETTLING TIME, 14-BIT DAC, PDSO28, MS-013AE, SOIC-28
AD7834BR-REEL ADI

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 		QUAD, SERIAL INPUT LOADING, 10us SETTLING TIME, 14-BIT DAC, PDSO28, MS-013AE, SOIC-28
AD7834BRZ ADI

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 		暂无描述
AD7834BRZ ROCHESTER

获取价格

 		QUAD, SERIAL INPUT LOADING, 10 us SETTLING TIME, 14-BIT DAC, PDSO28, ROHS COMPLIANT, MS-01

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