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AD7835AP-REEL

更新时间： 2024-11-30 21:21:47
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亚德诺 - ADI PC转换器
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LC2MOS Quad 14-Bit DAC

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AD7835AP-REEL 数据手册

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LC2MOS  
Quad 14-Bit DACs  
AD7834/AD7835  
The AD7834 is a serial input device. Data is loaded in 16-bit  
format from the external serial bus, MSB first after two leading  
FEATURES  
Four 14-bit DACs in one package  
AD7834—serial loading  
0s, into one via DIN, SCLK, and  
.
FSYNC  
AD7835—parallel 8-bit/14-bit loading  
Voltage outputs  
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 AD7834 has five dedicated package address pins, PA0 to  
PA4, that can be wired to AGND or VCC to permit up to 32  
AD7834s to be individually addressed in a multipackage  
application.  
The AD7835 can accept either 14-bit parallel loading or double-  
byte loading, where right-justified data is loaded in one 8-bit  
byte 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  
, and DAC channel address pins, A0 to A2.  
BYSHF  
AD7834—28-lead SOIC and PDIP  
AD7835—44-lead MQFP and PLCC  
With each device, the  
signal is used to update all four  
LDAC  
APPLICATIONS  
Process control  
Automatic test equipment  
General purpose instrumentation  
DAC outputs simultaneously, or individually, on reception of  
new data. In addition, for each device, the asynchronous  
CLR  
input can be used to set all signal outputs, VOUT1 to VOUT4, to  
the user-defined voltage level on the Device Sense Ground pin,  
DSG. On power-on, before the power supplies have stabilized,  
internal circuitry holds the DAC output voltage levels to within  
2 V of the DSG potential. As the supplies stabilize, the DAC  
output levels move to the exact DSG potential (assuming  
is exercised).  
GENERAL DESCRIPTION  
The AD7834 and AD7835 parts contain four 14-bit DACs on  
one monolithic chip. The AD7834 and AD7835 have out-  
put voltages in the range of 8.192 V with a maximum  
span of 14 V.  
CLR  
The AD7834 is available in 28-lead 0.3" SOIC package and  
28-lead 0.6" PDIP package, and the AD7835 is available in a  
44-lead MQFP package and a 44-lead PLCC package.  
AD7834 FUNCTIONAL BLOCK DIAGRAM  
AD7835 FUNCTIONAL BLOCK DIAGRAM  
V
V
(–)  
V
V
(–)A  
V
REF  
V
V
V
(+)  
V
V
(+)A  
DSG A  
REF  
CC  
REF  
CC  
DD  
SS  
REF  
DD  
SS  
INPUT  
AD7835  
AD7834  
INPUT  
DAC 1  
DAC 1  
DAC 1  
DAC 2  
REGISTER  
1
DAC 1  
DAC 2  
REGISTER  
1
LATCH  
LATCH  
PAEN  
BYSHF  
×
×
1
1
×1  
×1  
V
1
2
V
V
1
2
OUT  
OUT  
14  
DB13  
DB0  
PA0  
PA1  
INPUT  
BUFFER  
INPUT  
REGISTER  
2
INPUT  
REGISTER  
2
DAC 2  
LATCH  
DAC 2  
LATCH  
CONTROL  
LOGIC  
AND  
ADDRESS  
DECODE  
V
OUT  
PA2  
PA3  
PA4  
OUT  
WR  
CS  
INPUT  
REGISTER  
3
INPUT  
REGISTER  
3
DAC 3  
LATCH  
DAC 3  
LATCH  
DAC 3  
DAC 4  
DAC 3  
DAC 4  
×
×
1
1
V
3
4
×1  
×1  
V
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
OUT  
OUT  
CLR  
SCLK  
CLR  
AGND  
DGND  
LDAC  
DSG  
DSG B  
(+)B  
AGND  
DGND  
V
(–)B  
REF  
V
LDAC  
REF  
Figure 1.  
Figure 2.  
Rev. C  
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 that may result from its use.  
Specifications subject to change without notice. No license is granted by implication  
or otherwise under any patent or patent rights of Analog Devices. Trademarks and  
registered trademarks are the property of their respective owners.  
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.  
Tel: 781.329.4700  
Fax: 781.461.3113  
www.analog.com  
© 2005 Analog Devices, Inc. All rights reserved.  
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AD7835AP-REEL 替代型号

型号 品牌 替代类型 描述 数据表
AD7835APZ ADI

完全替代

 LC2MOS Quad 14-Bit DAC
AD7835APZ-REEL ADI

完全替代

 IC QUAD, PARALLEL INPUT LOADING, 10 us SETTLING TIME, 14-BIT DAC, PQCC44, ROHS COMPLIANT,
AD7835AP ADI

完全替代

 LC2MOS Quad 14-Bit DAC

与AD7835AP-REEL相关器件

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AD7835APZ ADI

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 		LC2MOS Quad 14-Bit DAC
AD7835APZ-REEL ADI

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 		IC QUAD, PARALLEL INPUT LOADING, 10 us SETTLING TIME, 14-BIT DAC, PQCC44, ROHS COMPLIANT,
AD7835AS ADI

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 		LC2MOS Quad 14-Bit DAC
AD7835AS ROCHESTER

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 		QUAD, PARALLEL INPUT LOADING, 10 us SETTLING TIME, 14-BIT DAC, PQFP44, MO-112AA-1, MQFP-44
AD7835AS-REEL ADI

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 		IC QUAD, PARALLEL INPUT LOADING, 10 us SETTLING TIME, 14-BIT DAC, PQFP44, MO-112AA-1, MQFP
AD7835ASZ ADI

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 		LC2MOS Quad 14-Bit DAC
AD7835ASZ ROCHESTER

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 		QUAD, PARALLEL INPUT LOADING, 10 us SETTLING TIME, 14-BIT DAC, PQFP44, ROHS COMPLIANT, MO-
AD7835ASZ-REEL ADI

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 		LC2MOS Quad 14-Bit DACs
AD7835BS ADI

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 		LC2MOS Quad 14-Bit DAC
AD7835BSZ-REEL ADI

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 		IC QUAD, SERIAL INPUT LOADING, 14-BIT DAC, PQFP44, LEAD FREE, PLASTIC, QFP-44, Digital to

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