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AD7394AR

更新时间： 2024-11-29 12:41:39
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亚德诺 - ADI /
页数 文件大小 规格书
12页 307K
描述
3 V, Dual, Serial Input 12-/10-Bit DACs

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AD7394AR 数据手册

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+3 V, Dual, Serial Input  
12-/10-Bit DACs  
a
AD7394/AD7395  
FUNCTIONAL BLOCK DIAGRAM  
FEATURES  
Micropower: 100 ␮A/DAC  
V
V
DD  
REF  
0.1 ␮A Typical Power Shutdown  
Single-Supply +2.7 V to +5.5 V Operation  
Compact 1.1 mm Height TSSOP-14 Package  
AD7394/12-Bit Resolution  
AD7395/10-Bit Resolution  
Serial Interface with Schmitt Trigger Inputs  
OP  
AMP A  
R
E
G
I
CS  
D
A
C
EN  
DAC A  
V
OUTA  
S
T
E
R
CLK  
A
D
SDI  
(DATA)  
APPLICATIONS  
R
E
G
I
S
T
E
R
P
R
S
H
I
F
T
12  
Automotive Output Span Voltage  
Portable Communications  
Digitally Controlled Calibration  
PC Peripherals  
AD7394/AD7395  
R
E
G
I
S
T
E
R
D
D
A
C
OP  
AMP B  
B
LDA  
LDB  
DAC B  
V
OUTB  
P
R
GENERAL DESCRIPTION  
The AD7394/AD7395 family of dual, 12-/10-bit, voltage output  
digital-to-analog converters is designed to operate from a single  
+3 V supply. Built using a CBCMOS process, this monolithic  
DAC offers the user low cost and ease of use in single-supply  
+3 V systems. Operation is guaranteed over the supply voltage  
range of +2.7 V to +5.5 V making this device ideal for battery  
operated applications.  
RS  
DGND  
MSB  
AGND  
SHDN  
The AD7394/AD7395 is specified over the extended industrial  
(–40°C to +85°C) temperature range. Packages available in-  
clude plastic DIP and low profile 1.75 mm height SO-14 surface  
mount packages. The AD7395ARU is available for ultracompact  
applications in a thin 1.1 mm TSSOP-14 package. For automotive  
applications the AD7395AR is specified for operation over the  
(–40°C to +125°C) temperature range.  
The full-scale output voltage is determined by the applied exter-  
nal reference input voltage, VREF. The rail-to-rail VREF input  
to VOUT outputs allows for a full-scale voltage set equal to the  
positive supply VDD or any value in between.  
A doubled-buffered serial data interface offers high speed,  
microcontroller compatible inputs using serial-data-in (SDI),  
clock (CLK) and load strobe (LDA + LDB) pins. A chip-select  
(CS) pin simplifies connection of multiple DAC packages by  
enabling the clock input when active low. Additionally, an RS  
input sets the output to zero scale or to 1/2 scale based on the  
logic level applied to the MSB pin. The power shutdown pin,  
SHDN, reduces power dissipation to nanoamp current levels.  
All digital inputs contain Schmitt-triggered logic levels to mini-  
mize power dissipation and prevent false triggering on the clock  
input.  
1
V
V
= 3V  
DD  
0.8  
0.6  
= 2.5V  
REF  
0.4  
0.2  
0
–0.2  
–0.4  
–0.6  
–0.8  
–1  
Both parts are offered in the same pinout to allow users to select  
the amount of resolution appropriate for their application with-  
out circuit card redesign.  
T
= –55؇C, +25؇C, +85؇C  
SUPERIMPOSED  
A
0
500  
1000 1500  
2000 2500 3000 3500 4000  
CODE – Decimal  
Figure 1. Differential Nonlinearity Error vs. Code  
REV. 0  
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.  
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.  
Tel: 781/329-4700  
Fax: 781/326-8703  
World Wide Web Site: http://www.analog.com  
© Analog Devices, Inc., 1998  
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AD7394AR 替代型号

型号 品牌 替代类型 描述 数据表
AD7394ARZ ADI

完全替代

 IC SERIAL INPUT LOADING, 70 us SETTLING TIME, 12-BIT DAC, PDSO14, 1.75 MM HEIGHT, LOW PROF
AD7394ARZ-REEL7 ADI

完全替代

 IC SERIAL INPUT LOADING, 70 us SETTLING TIME, 12-BIT DAC, PDSO14, 1.75 MM HEIGHT, SOIC-14,
AD7394AR-REEL7 ADI

功能相似

 IC SERIAL INPUT LOADING, 70 us SETTLING TIME, 12-BIT DAC, PDSO14, 1.75 MM HEIGHT, SOIC-14,

与AD7394AR相关器件

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AD7394AR-REEL7 ADI

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 		IC SERIAL INPUT LOADING, 70 us SETTLING TIME, 12-BIT DAC, PDSO14, 1.75 MM HEIGHT, SOIC-14,
AD7394ARZ ADI

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 		IC SERIAL INPUT LOADING, 70 us SETTLING TIME, 12-BIT DAC, PDSO14, 1.75 MM HEIGHT, LOW PROF
AD7394ARZ-REEL7 ADI

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 		IC SERIAL INPUT LOADING, 70 us SETTLING TIME, 12-BIT DAC, PDSO14, 1.75 MM HEIGHT, SOIC-14,
AD7395 ADI

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 		+3 V, Dual, Serial Input 12-/10-Bit DACs
AD7395AN ADI

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 		+3 V, Dual, Serial Input 12-/10-Bit DACs
AD7395AR ADI

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 		+3 V, Dual, Serial Input 12-/10-Bit DACs
AD7395AR-REEL7 ADI

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 		IC SERIAL INPUT LOADING, 70 us SETTLING TIME, 10-BIT DAC, PDSO14, 1.75 MM HEIGHT, SOIC-14,
AD7395ARU ADI

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 		+3 V, Dual, Serial Input 12-/10-Bit DACs
AD7395ARU-REEL7 ADI

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 		IC SERIAL INPUT LOADING, 70 us SETTLING TIME, 10-BIT DAC, PDSO14, 1.10 MM HEIGHT, TSSOP-14
AD7396 ADI

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 		3 V, Parallel Input Dual 12-Bit /10-Bit DACs

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