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DAC8560 PDF预览

DAC8560

更新时间: 2024-11-09 04:38:27
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描述
16-Bit, Ultra-Low Glitch, Voltage Output DIGITAL-TO-ANALOG CONVERTER with 2.5V, 2ppm/∑C Internal Reference

DAC8560 数据手册

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DAC8560  
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SLAS464DECEMBER 2006  
16-Bit, Ultra-Low Glitch, Voltage Output  
DIGITAL-TO-ANALOG CONVERTER  
with 2.5V, 2ppm/°C Internal Reference  
FEATURES  
DESCRIPTION  
Relative Accuracy: 4LSB  
The DAC8560 is a low-power, voltage output, 16-bit  
digital-to-analog converter (DAC). The DAC8560  
includes a 2.5V, 2ppm/°C internal reference (enabled  
by default), giving a full-scale output voltage range of  
2.5V. The internal reference has an initial accuracy  
of 0.02% and can source up to 20mA at the VREF pin.  
The device is monotonic, provides very good  
linearity, and minimizes undesired code-to-code  
transient voltages (glitch). The DAC8560 uses a  
versatile 3-wire serial interface that operates at clock  
rates up to 30MHz. It is compatible with standard  
SPI™, QSPI™, Microwire™, and digital signal  
processor (DSP) interfaces.  
Glitch Energy: 0.15nV-s  
MicroPower Operation: 510µA at 2.7V  
Internal Reference:  
2.5V Reference Voltage (enabled by default)  
0.02% Initial Accuracy  
2ppm/°C Temperature Drift (typ)  
5ppm/°C Temperature Drift (max)  
20mA Sink/Source Capability  
Power-On Reset to Zero  
Power Supply: +2.7V to +5.5V  
16-Bit Monotonic Over Temperature Range  
Settling Time: 10µs to ±0.003% FSR  
The DAC8560 incorporates a power-on-reset circuit  
that ensures the DAC output powers up at zero-scale  
and remains there until a valid code is written to the  
Low-Power Serial Interface with  
Schmitt-Triggered Inputs  
device. The DAC8560 contains  
a power-down  
feature, accessed over the serial interface, that  
reduces the current consumption of the device to  
1.2µA at 5V.  
On-Chip Output Buffer Amplifier with  
Rail-to-Rail Operation  
Power-Down Capability  
The low-power consumption, internal reference, and  
small footprint make this device ideal for portable,  
battery-operated equipment. The power consumption  
is 2.6mW at 5V, reducing to 6µW in power-down  
mode.  
Drop-In Compatible With DAC8531/01 and  
DAC8550/51  
Temperature Range: –40°C to +105°C  
Available in a Tiny MSOP-8 Package  
The DAC8560 is available in an MSOP-8 package.  
FUNCTIONAL BLOCK DIAGRAM  
APPLICATIONS  
VDD  
Process Control  
VFB  
Data Acquisition Systems  
Closed-Loop Servo-Control  
PC Peripherals  
VREF  
VOUT  
Ref (+)  
16-Bit DAC  
2.5V  
Reference  
Portable Instrumentation  
16  
DAC Register  
16  
SYNC  
SCLK  
DIN  
PWD  
Control  
Resistor  
Network  
Shift Register  
GND  
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas  
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
SPI, QSPI are trademarks of Motorola, Inc.  
Microwire is a trademark of National Semiconductor.  
All other trademarks are the property of their respective owners.  
PRODUCTION DATA information is current as of publication date.  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
Copyright © 2006, Texas Instruments Incorporated  

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