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AD5676R

更新时间： 2024-01-23 04:27:20
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亚德诺 - ADI /
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AD5676R 数据手册

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Octal, 16-Bit nanoDAC+ with SPI Interface  
Data Sheet  
AD5676  
FEATURES  
GENERAL DESCRIPTION  
High performance  
The AD5676 is a low power, octal, 16-bit buffered voltage  
High relative accuracy (INL): 3 LSB maximum at 16 bits  
Total unadjusted error (TUE): 0.14% of FSR maximum  
Offset error: 1.5 mV maximum  
Gain error: 0.06% of FSR maximum  
Wide operating ranges  
output digital-to-analog converter (DAC). The device includes  
a gain select pin, giving a full-scale output of VREF (gain = 1) or  
2 × VREF (gain = 2). The AD5676 DAC operates from a single  
2.7 V to 5.5 V supply and is guaranteed monotonic by design.  
The AD5676 is available in 20-lead TSSOP and LFCSP packages.  
−40°C to +125°C temperature range  
2.7 V to 5.5 V power supply  
Easy implementation  
User selectable gain of 1 or 2 (GAIN pin/gain bit)  
Reset to zero scale or midscale (RSTSEL pin)  
1.8 V logic compatibility  
The internal power-on reset circuit and the RSTSEL pin of the  
AD5676 ensure that the output DACs power up to zero scale or  
midscale and then remain there until a valid write takes place. The  
AD5676 contains a per channel power-down mode that typically  
reduces the current consumption of the device to 1 µA.  
The AD5676 employs a versatile serial peripheral interface (SPI)  
that operates at clock rates up to 50 MHz, and contains a VLOGIC pin  
intended for 1.8 V to 5.5 V logic.  
50 MHz SPI with readback or daisy chain  
Robust 2 kV HBM and 1.5 kV FICDM ESD rating  
20-lead, TSSOP and LFCSP RoHS-compliant packages  
Table 1. Octal nanoDAC+® Devices  
APPLICATIONS  
Interface  
Reference  
Internal  
External  
Internal  
External  
16-Bit  
12-Bit  
Optical transceivers  
SPI  
AD5676R  
AD5676  
AD5675R  
AD5675  
AD5672R  
Base station power amplifiers  
Process control (PLC input/output cards)  
Industrial automation  
Not applicable  
AD5671R  
I2C  
Not applicable  
Data acquisition systems  
PRODUCT HIGHLIGHTS  
1. High relative accuracy (INL) 16-bit: 3 LSB maximum.  
2. −40°C to +125°C temperature range.  
3. 20-lead, TSSOP and LFCSP RoHS-compliant packages.  
FUNCTIONAL BLOCK DIAGRAM  
V
V
V
REF  
LOGIC  
DD  
AD5676  
BUFFER  
BUFFER  
BUFFER  
BUFFER  
BUFFER  
BUFFER  
BUFFER  
BUFFER  
INPUT  
DAC  
STRING  
DAC 0  
V
V
V
V
V
V
V
V
0
1
2
3
4
5
6
7
OUT  
OUT  
OUT  
OUT  
OUT  
OUT  
OUT  
OUT  
REGISTER  
REGISTER  
INPUT  
REGISTER  
DAC  
REGISTER  
STRING  
DAC 1  
INPUT  
REGISTER  
DAC  
REGISTER  
STRING  
DAC 2  
SCLK  
SYNC  
SDI  
INPUT  
REGISTER  
DAC  
REGISTER  
STRING  
DAC 3  
INTERFACE  
LOGIC  
INPUT  
REGISTER  
DAC  
REGISTER  
STRING  
DAC 4  
INPUT  
REGISTER  
DAC  
REGISTER  
STRING  
DAC 5  
SDO  
INPUT  
REGISTER  
DAC  
REGISTER  
STRING  
DAC 6  
LDAC  
RESET  
INPUT  
REGISTER  
DAC  
REGISTER  
STRING  
DAC 7  
POWER-DOWN  
LOGIC  
POWER-ON RESET  
GAIN x1/x2  
GAIN  
RSTSEL  
GND  
Figure 1.  
Rev. B  
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  
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 ©2014–2015 Analog Devices, Inc. All rights reserved.  
Technical Support  
www.analog.com  
 
 
 
 
 
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