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AD5444YRM

更新时间： 2024-01-25 19:18:49
品牌 Logo 应用领域
亚德诺 - ADI 转换器数模转换器
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28页 726K
描述
12-/14-Bit High Bandwidth Multiplying DACs with Serial Interface

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12-/14-Bit High Bandwidth  
Multiplying DACs with Serial Interface  
Data Sheet  
AD5444/AD5446  
FEATURES  
GENERAL DESCRIPTION  
12 MHz multiplying bandwidth  
INL of 0.5 LSB at 12 bits  
Pin-compatible 12-/14-bit current output DAC  
2.5 V to 5.5 V supply operation  
10-lead MSOP package  
10 V reference input  
50 MHz serial interface  
2.7 MSPS update rate  
The AD5444/AD54461 are CMOS 12-bit and 14-bit, current  
output, digital-to-analog converters (DACs). Operating from a  
single 2.5 V to 5.5 V power supply, these devices are suited for  
battery-powered and other applications.  
As a result of the CMOS submicron manufacturing process,  
these parts offer excellent 4-quadrant multiplication char-  
acteristics of up to 12 MHz.  
These DACs use a double-buffered, 3-wire serial interface that  
is compatible with SPI®, QSPI™, MICROWIRE™, and most DSP  
interface standards. On power-up, the internal shift register and  
latches are filled with 0s, and the DAC output is at zero scale.  
Extended temperature range: −40°C to +125°C  
4-quadrant multiplication  
Power-on reset with brownout detection  
0.4 µA typical current consumption  
Guaranteed monotonic  
The applied external reference input voltage (VREF) determines  
the full-scale output current. These parts can handle 10 V  
inputs on the reference, despite operating from a single-supply  
power supply of 2.5 V to 5.5 V. An integrated feedback resistor  
(RFB) provides temperature tracking and full-scale voltage output  
when combined with an external current-to-voltage precision  
amplifier. The AD5444/AD5446 DACs are available in small  
10-lead MSOP packages, which are pin-compatible with the  
AD5425/AD5426/AD5432/AD5443 family of DACs.  
APPLICATIONS  
Portable, battery-powered applications  
Waveform generators  
Analog processing  
Instrumentation applications  
Programmable amplifiers and attenuators  
Digitally controlled calibration  
Programmable filters and oscillators  
Composite video  
The EV-AD5443/46/53SDZ board is available for evaluating  
DAC performance. For more information, see the UG-327  
evaluation board user guide.  
Ultrasound  
Gain, offset, and voltage trimming  
Automotive radar  
1 US Patent Number 5,689,257.  
FUNCTIONAL BLOCK DIAGRAM  
V
V
REF  
DD  
R
FB  
R
AD5444/  
AD5446  
I
I
1
2
OUT  
12-BIT  
R-2R DAC  
OUT  
DAC REGISTER  
INPUT LATCH  
POWER-ON  
RESET  
SYNC  
SCLK  
SDIN  
CONTROL LOGIC AND  
INPUT SHIFT REGISTER  
SDO  
GND  
Figure 1.  
Rev. E  
Document Feedback  
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  
rightsof third parties that may result fromits 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 andregisteredtrademarks 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 ©2004–2013 Analog Devices, Inc. All rights reserved.  
Technical Support  
www.analog.com  
 
 
 
 
 
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AD5444YRM 替代型号

型号 品牌 替代类型 描述 数据表
AD5444YRMZ-REEL7 ADI

完全替代

 12-/14-Bit High Bandwidth Multiplying DACs with Serial Interface
AD5444YRMZ ADI

完全替代

 12-/14-Bit High Bandwidth Multiplying DACs with Serial Interface

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AD5444YRM-REEL7 ADI

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AD5445 ADI

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