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DAC7821IRGPT PDF预览

DAC7821IRGPT

更新时间： 2024-09-13 09:59:39
品牌 Logo 应用领域
德州仪器 - TI 转换器数模转换器
页数 文件大小 规格书
18页 1611K
描述
12-Bit, Parallel Input, Multiplying Digital-to-Analog Converter

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DAC7821IRGPT 技术参数

生命周期：Obsolete零件包装代码：QFN
包装说明：PLASTIC, QFN-20针数：20
Reach Compliance Code：unknown风险等级：5.65
Is Samacsys：N转换器类型：D/A CONVERTER
输入位码：BINARY输入格式：PARALLEL, WORD
JESD-30 代码：S-PQCC-N20长度：4 mm
最大线性误差 (EL)：0.0244%位数：12
功能数量：1端子数量：20
最高工作温度：125 °C最低工作温度：-40 °C
封装主体材料：PLASTIC/EPOXY封装代码：HVQCCN
封装等效代码：LCC20,.16SQ,20封装形状：SQUARE
封装形式：CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE电源：3/5 V
认证状态：Not Qualified座面最大高度：1 mm
最大稳定时间：0.2 µs子类别：Other Converters
最大压摆率：0.005 mA标称供电电压：2.7 V
表面贴装：YES技术：CMOS
温度等级：AUTOMOTIVE端子形式：NO LEAD
端子节距：0.5 mm端子位置：QUAD
宽度：4 mmBase Number Matches：1

DAC7821IRGPT 数据手册

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DAC7821  
DAC7821  
www.ti.com  
SBAS365A–OCTOBER 2005–REVISED FEBRUARY 2006  
12-Bit, Parallel Input, Multiplying  
Digital-to-Analog Converter  
FEATURES  
DESCRIPTION  
•
2.5 V to 5.5 V Supply Operation  
The DAC7821 is a CMOS 12-bit current output  
digital-to-analog converter (DAC). This device  
operates from a single 2.5 V to 5.5 V power supply,  
making it suitable to battery-powered and many other  
applications.  
•
Fast Parallel Interface:  
17ns Write Cycle  
•
•
•
•
•
Update Rate of 20.4 MSPS  
10 MHz Multiplying Bandwidth  
±10 V Reference Input  
This DAC operates with a fast parallel interface. Data  
readback allows the user to read the contents of the  
DAC register via the DB pins. On power-up, the  
internal register and latches are filled with zeroes and  
the DAC outputs are at zero scale.  
Low Glitch Energy: 5 nV-s  
Extended Temperature Range:  
–40°C to +125°C  
The  
DAC7821  
offers  
excellent  
4-quadrant  
•
•
•
•
•
•
•
20-Lead QFN and 20-Lead TSSOP Packages  
12-Bit Monotonic  
multiplication 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) provides temperature tracking and  
full-scale voltage output when combined with an  
external current-to-voltage precision amplifier.  
±1 LSB INL  
4-Quadrant Multiplication  
Power-On Reset with Brownout Detection  
Readback Function  
Industry-Standard Pin Configuration  
The DAC7821 is available in a 20-lead TSSOP  
package as well as a small 20-lead QFN package  
(available Q2 2006).  
APPLICATIONS  
•
•
•
•
•
•
•
•
Portable Battery-Powered Instruments  
Waveform Generators  
Analog Processing  
Programmable Amplifiers and Attenuators  
Digitally-Controlled Calibration  
Programmable Filters and Oscillators  
Composite Video  
V
DD  
V
REF  
R
DAC7821  
R
FB  
I 1  
OUT  
12-Bit  
Power-On  
Reset  
R-2R DAC  
I 2  
OUT  
Ultrasound  
DAC Register  
Input Latch  
CS  
Control  
Logic  
R/W  
Parallel Bus  
DB0  
DB11  
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.  
All 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 © 2005–2006, Texas Instruments Incorporated  
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