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AD5449YRUZ-REEL7 PDF预览

AD5449YRUZ-REEL7

更新时间： 2024-09-19 12:27:55
品牌 Logo 应用领域
亚德诺 - ADI 转换器数模转换器光电二极管PC
页数 文件大小 规格书
28页 717K
描述
Dual 8-/10-/12-Bit, High Bandwidth, Multiplying DACs with Serial Interface

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AD5449YRUZ-REEL7 数据手册

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Dual 8-/10-/12-Bit, High Bandwidth,  
Multiplying DACs with Serial Interface  
Data Sheet  
AD5429/AD5439/AD5449  
FEATURES  
GENERAL DESCRIPTION  
The AD5429/AD5439/AD54491 are CMOS, 8-, 10-, and 12-bit,  
dual-channel, current output digital-to-analog converters (DAC),  
respectively. These devices operate from a 2.5 V to 5.5 V power  
supply, making them suited to battery-powered and other  
applications.  
10 MHz multiplying bandwidth  
INL of 0.25 LSB @ 8 bits  
16-lead TSSOP package  
2.5 V to 5.5 V supply operation  
10 V reference input  
50 MHz serial interface  
As a result of being manufactured on a CMOS submicron process,  
these parts offer excellent 4-quadrant multiplication character-  
istics, with large signal multiplying bandwidths of 10 MHz.  
2.47 MSPS update rate  
Extended temperature range: −40°C to +125°C  
4-quadrant multiplication  
Power-on reset  
0.5 µA typical current consumption  
Guaranteed monotonic  
Daisy-chain mode  
The applied external reference input voltage (VREF) determines  
the full-scale output current. An integrated feedback resistor  
(RFB) provides temperature tracking and full-scale voltage  
output when combined with an external current-to-voltage  
precision amplifier.  
Readback function  
APPLICATIONS  
Portable battery-powered applications  
Waveform generators  
These DACs use a double-buffered, 3-wire serial interface that  
is compatible with SPI, QSPI™, MICROWIRE™, and most DSP  
interface standards. In addition, a serial data out (SDO) pin allows  
daisy-chaining when multiple packages are used. Data readback  
allows the user to read the contents of the DAC register via the  
SDO pin. On power-up, the internal shift register and latches  
are filled with 0s, and the DAC outputs are at zero scale.  
Analog processing  
Instrumentation applications  
Programmable amplifiers and attenuators  
Digitally controlled calibration  
Programmable filters and oscillators  
Composite video  
The AD5429/AD5439/AD5449 DACs are available in 16-lead  
TSSOP packages. The EV-AD5415/49SDZ evaluation board is  
available for evaluating DAC performance. For more  
Ultrasound  
Gain, offset, and voltage trimming  
information, see the UG-297 evaluation board user guide.  
FUNCTIONAL BLOCK DIAGRAM  
V
A
REF  
RFB  
R
AD5429/AD5439/AD5449  
V
DD  
R
A
FB  
SYNC  
I
1A  
OUT  
OUT  
SHIFT  
REGISTER  
INPUT  
REGISTER  
DAC  
REGISTER  
8-/10-/12-BIT  
R-2R DAC A  
SCLK  
SDIN  
I
2A  
SDO  
CLR  
LDAC  
I
I
1B  
2B  
OUT  
INPUT  
REGISTER  
DAC  
REGISTER  
8-/10-/12-BIT  
R-2R DAC B  
POWER-ON  
RESET  
OUT  
R
B
FB  
RFB  
R
LDAC  
V
B
REF  
Figure 1.  
1 U.S. Patent Number 5,689,257.  
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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AD5449YRUZ-REEL7 替代型号

型号 品牌 替代类型 描述 数据表
AD5449YRUZ ADI

完全替代

 Dual 8-/10-/12-Bit, High Bandwidth, Multiplying DACs with Serial Interface
AD5449YRU ADI

完全替代

 Dual 8-,10-,12-Bit High Bandwidth Multiplying DACs with Serial Interface
AD5449YRU-REEL7 ADI

完全替代

 Dual 8-,10-,12-Bit High Bandwidth Multiplying DACs with Serial Interface

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