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AD5546BRU

更新时间： 2024-11-04 22:02:27
品牌 Logo 应用领域
亚德诺 - ADI 转换器数模转换器
页数 文件大小 规格书
16页 680K
描述
Current Output, Parallel Input, 16-/14-Bit Multiplying DACs with 4-Quadrant Resistors

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AD5546BRU 数据手册

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Current Output, Parallel Input, 16-/14-Bit  
Multiplying DACs with 4-Quadrant Resistors  
AD5546/AD5556  
FEATURES  
16-bit resolution  
FUNCTIONAꢀ BꢀOCK DIAGRAM  
R
R
REF R  
1
COM  
OFS  
14-bit resolution  
2- or 4-quadrant multiplying DAC  
1 ꢀSB DNꢀ  
1 ꢀSB INꢀ or 2 ꢀSB INꢀ  
Operating supply voltage: 2.7 V to 5.5 V  
ꢀow noise: 12 nV/√Hz  
ꢀow power: IDD = 10 µA  
0.5 µs settling time  
R
R
R
R
FB  
1
2
OFS  
R
I
FB  
DAC  
16/14  
AD5546/  
AD5556  
OUT  
V
DD  
WR  
CONTROL  
LOGIC  
DAC  
REGISTER  
LDAC  
GND  
DB0–DB15  
POR  
Built-in RFB facilitates current-to-voltage conversion  
Built-in 4-quadrant resistors allow 0 V to –10 V, 0 V to +10 V,  
or 10 V outputs  
MSB RS  
Figure 1. AD5546/AD5556 Simplified Block Diagram  
2 mA full-scale current 20ꢁ, with VREF = 10 V  
Automotive operating temperature: –40°C to +125°C  
Compact TSSOP-28 package  
GENERAꢀ DESCRIPTION  
The AD5546/AD5556 are precision 16-/14-bit, multiplying, low  
power, current output, parallel input D/A converters. They  
operate from a single 2.7 V to 5.5 V supply with 1ꢀ V multi-  
plying references for 4-quadrant outputs. Built-in 4-quadrant  
resistors facilitate the resistance matching and temperature  
tracking that minimize the number of components needed for  
multiquadrant applications. The feedback resistor (RFB) simpli-  
fies the I-V conversion with an external buffer. The AD5546/  
AD5556 are packaged in compact TSSOP-28 packages with  
operating temperatures from –4ꢀ°C to +125°C.  
APPꢀICATIONS  
Automatic test equipment  
Instrumentation  
Digitally controlled calibration  
Digital waveform generation  
5V  
2
+
VIN  
U2A  
U3  
ADR03  
OP2177  
–
5
6
C1  
TRIM  
–VREF  
REF  
+VREF  
VOUT  
GND  
4
R1  
RCOM  
ROF  
RFB  
R1  
R2  
ROFS  
RFB  
C2  
5V  
VDD  
IOUT  
–
16/14-BIT  
U1  
U2B  
OP2177  
AD5546/AD5556  
VOUT  
GND  
16/14 DATA  
+
–VREF TO +VREF  
WR LDAC RS MSB  
WR  
LDAC  
RS  
MSB  
Figure 2. 16-/14-Bit, 4-Quadrant Multiplying DAC with a Minimum of External Components  
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 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: 781.326.8703  
www.analog.com  
© 2004 Analog Devices, Inc. All rights reserved.  
 
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AD5546BRU 替代型号

型号 品牌 替代类型 描述 数据表
AD5546BRUZ ADI

完全替代

 Current-Output Parallel-Input, 16-Bit Digital-to-Analog Converter
AD5546BRU-REEL7 ADI

类似代替

 Current Output, Parallel Input, 16-/14-Bit Multiplying DACs with 4-Quadrant Resistors

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