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AD7393

更新时间： 2024-11-28 23:16:19
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亚德诺 - ADI /
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11页 202K
描述
+3 V, Parallel Input Micropower 10- and 12-Bit DACs

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AD7393 数据手册

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+3 V, Parallel Input  
a
Micropower 10- and 12-Bit DACs  
AD7392/AD7393  
FEATURES  
FUNCTIONAL BLOCK DIAGRAM  
Micropower: 100 ␮A  
0.1 ␮A Typical Power Shutdown  
Single-Supply +2.7 V to +5.5 V Operation  
Compact 1.1 mm Height TSSOP-20 Package  
AD7392/12-Bit Resolution  
AD7393/10-Bit Resolution  
0.9 LSB Differential Nonlinearity Error  
AD7392  
V
DD  
12-BIT  
DAC  
V
REF  
V
OUT  
SHDN  
12  
DAC REGISTER  
AGND  
12  
APPLICATIONS  
DGND  
CS  
DB0–DB11 RS  
Automotive 0.5 V to 4.5 V Output Span Voltage  
Portable Communications  
Digitally Controlled Calibration  
PC Peripherals  
GENERAL DESCRIPTION  
Additionally, an asynchronous RS input sets the output to zero  
The AD7392/AD7393 family of 10- and 12-bit voltage-output  
digital-to-analog converters is designed to operate from a single  
+3 V supply. Built using a CBCMOS process, these monolithic  
DACs offer 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.  
scale at power on or upon user demand.  
Both parts are offered in the same pinout to allow users to select  
the amount of resolution appropriate for their applications  
without circuit card changes.  
The AD7392/AD7393 are specified for operation over the ex-  
tended industrial (–40°C to +85°C) temperature range. The  
AD7393AR is specified for the –40°C to +125°C automotive  
temperature range. AD7392/AD7393s are available in plastic  
DIP, and 20-lead SOIC packages. The AD7393ARU is avail-  
able for ultracompact applications in a thin 1.1 mm height  
TSSOP-20 package.  
The full-scale voltage output is determined by the external  
reference input voltage applied. The rail-to-rail REFIN to  
DACOUT allows for a full-scale voltage set equal to the positive  
supply VDD or any value in between. The voltage outputs are  
capable of sourcing 5 mA.  
For serial data input, 8-lead packaged versions, see the AD7390  
and AD7391 products.  
A 12-bit wide data latch loads with a 45 ns write time allowing  
interface to the fastest processors without wait states.  
1
1
AD7393  
AD7392  
V
V
T
= +2.7V  
= +2.5V  
V
V
T
= +2.7V  
= +2.5V  
0.8  
0.6  
DD  
DD  
0.8  
0.6  
REF  
REF  
= 25؇C  
= 25؇C  
A
A
0.4  
0.4  
0.2  
0.2  
0
0
؊0.2  
؊0.4  
؊0.6  
؊0.8  
؊1  
؊0.2  
؊0.4  
؊0.6  
؊0.8  
؊1  
0
128  
256  
384  
512  
640  
768  
896  
1024  
0
512  
1024 1536  
2048 2560  
3072 3584  
4096  
CODE – Decimal  
CODE – Decimal  
Figure 1. AD7392 Differential Nonlinearity Error vs. Code  
Figure 2. AD7393 Differential Nonlinearity Error vs. Code  
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.  
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., 1999  
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