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DAC7811

更新时间： 2024-02-28 06:12:51
品牌 Logo 应用领域
德州仪器 - TI 转换器
页数 文件大小 规格书
18页 688K
描述
12-Bit, Serial Input, Multiplying Digital-to-Analog Converter

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DAC7811 数据手册

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DAC7811  
www.ti.com  
SBAS337–APRIL 2005  
12-Bit, Serial Input, Multiplying  
Digital-to-Analog Converter  
FEATURES  
DESCRIPTION  
•
•
•
•
•
•
2.7 V to 5.5 V Supply Operation  
The DAC7811 is a CMOS 12-bit current output  
digital-to-analog converter (DAC). This device  
operates from a 3.0 V to 5.5 V power supply, making  
it suitable to both battery-powered and many other  
applications.  
50 MHz Serial Interface  
10 MHz Multiplying Bandwidth  
±10 V Reference Input  
Low Glitch Energy: 2 nV-s  
This DAC uses 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 pin (SDO) allows for  
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 zeroes  
and the DAC outputs are at zero scale.  
Extended Temperature Range:  
–40°C to +125°C  
•
•
•
•
•
•
•
10-Lead SON Package  
12-Bit Monotonic  
4-Quadrant Multiplication  
Power-On Reset with Brownout Detection  
Daisy-Chain Mode  
The DAC7811 offers excellent 4-quadrant multipli-  
cation characteristics, with large signal multiplying  
bandwidth of 10 MHz. The applied external reference  
input voltage (VREF) determines the full-scale output  
current. An integrated feedback resistor (RFB) pro-  
vides temperature tracking and full-scale voltage  
output when combined with an external cur-  
rent-to-voltage precision amplifier.  
Readback Function  
Industry-Standard Pin Configuration  
APPLICATIONS  
•
•
•
•
•
•
•
•
Portable Battery-Powered Instruments  
Waveform Generators  
Analog Processing  
Programmable Amplifiers and Attenuators  
Digitally Controlled Calibration  
Programmable Filters and Oscillators  
Composite Video  
The DAC7811 is available in a 10-lead MSOP pack-  
age as well as a small 10-lead SON package.  
V
DD  
V
REF  
R
Ultrasound  
R
FB  
DAC7811  
I
I
1
2
OUT  
12-Bit  
R-2R DAC  
OUT  
DAC Register  
Input Latch  
Power-On  
Reset  
SYNC  
SCLK  
SDIN  
Control Logic and  
Input Shift Register  
SDO  
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 is a trademark of Motorola, Inc.  
MICROWIRE is a trademark of National Semiconductor.  
All trademarks are the property of their respective owners.  
PRODUCT PREVIEW information concerns products in the forma-  
tive or design phase of development. Characteristic data and other  
specifications are design goals. Texas Instruments reserves the  
right to change or discontinue these products without notice.  
Copyright © 2005, Texas Instruments Incorporated  
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DAC7811 替代型号

型号 品牌 替代类型 描述 数据表
DAC8811 TI

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