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DAC8552

更新时间： 2024-11-07 11:12:35
品牌 Logo 应用领域
德州仪器 - TI 脉冲转换器数模转换器
页数 文件大小 规格书
25页 608K
描述
16 位、双通道、超低毛刺脉冲、电压输出数模转换器

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DAC8552 数据手册

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DAC8552  
DAC855
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SLAS430A–JULY 2006–REVISED OCTOBER 2006  
16-BIT, DUAL CHANNEL, ULTRA-LOW GLITCH, VOLTAGE OUTPUT  
DIGITAL-TO-ANALOG CONVERTER  
FEATURES  
DESCRIPTION  
•
•
•
Relative Accuracy: 4LSB  
The DAC8552 is a 16-bit, dual channel, voltage  
output digital-to-analog converter (DAC) offering low  
power operation and a flexible serial host interface.  
Each on-chip precision output amplifier allows  
rail-to-rail output swing to be achieved over the  
supply range of 2.7V to 5.5V. The device supports a  
standard 3-wire serial interface capable of operating  
with input data clock frequencies up to 30MHz for  
VDD = 5V.  
Glitch Energy: 0.15nV-s  
MicroPower Operation:  
155µA per Channel at 2.7V  
•
•
•
•
•
•
Power-On Reset to Zero-Scale  
Power Supply: 2.7V to 5.5V  
16-Bit Monotonic Over Temperature  
Settling Time: 10µs to ±0.003% FSR  
Ultra-Low AC Crosstalk: –100dB Typ  
The DAC8552 requires an external reference voltage  
to set the output range of each DAC channel. Also  
incorporated into the device is a power-on reset  
circuit which ensures that the DAC outputs power up  
at zero-scale and remain there until a valid write  
takes place. The DAC8552 provides a flexible  
power-down feature, accessed over the serial  
interface, that reduces the current consumption of  
the device to 700nA at 5V.  
Low-Power Serial Interface with  
Schmitt-Triggered Inputs  
•
On-Chip Output Buffer Amplifier with  
Rail-to-Rail Operation  
•
•
Double-Buffered Input Architecture  
Simultaneous or Sequential Output Update  
and Power-down  
The low-power consumption of this device in normal  
operation makes it ideally suited for portable,  
battery-operated equipment and other low-power  
applications. The power consumption is 0.5mW per  
channel at 2.7V, reducing to 1µW in power-down  
mode.  
•
Available in a Tiny MSOP-8 Package  
APPLICATIONS  
•
•
•
•
•
•
Portable Instrumentation  
Closed-Loop Servo Control  
Process Control  
Data Acquisition Systems  
Programmable Attenuation  
PC Peripherals  
The DAC8552 is available in a MSOP-8 package  
with a specified operating temperature range of  
–40°C to +105°C.  
VDD  
VREF  
Data  
Buffer A  
DAC  
Register A  
DAC A  
DAC B  
VOUT  
A
Data  
Buffer B  
DAC  
Register B  
VOUTB  
16  
24-Bit,  
SYNC  
SCLK  
DIN  
Channel  
Select  
Load  
Control  
Power-Down  
Control Logic  
Serial-to-  
Parallel  
Shift  
8
2
Control Logic  
Resistor  
Network  
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, QSP 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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