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AD7242JR-REEL PDF预览

AD7242JR-REEL

更新时间: 2024-01-10 13:40:44
品牌 Logo 应用领域
亚德诺 - ADI 转换器数模转换器
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12页 321K
描述
AD7242JR-REEL

AD7242JR-REEL 技术参数

是否Rohs认证: 不符合生命周期:Obsolete
Reach Compliance Code:not_compliantECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:5.92
转换器类型:D/A CONVERTER输入位码:2'S COMPLEMENT
JESD-30 代码:R-PDSO-G28JESD-609代码:e0
最大线性误差 (EL):0.012%标称负供电电压:-5 V
位数:12功能数量:2
端子数量:28最高工作温度:70 °C
最低工作温度:封装主体材料:PLASTIC/EPOXY
封装代码:SOP封装等效代码:SOP28,.4
封装形状:RECTANGULAR封装形式:SMALL OUTLINE
电源:+-5 V认证状态:Not Qualified
最大稳定时间:3 µs子类别:Other Converters
最大压摆率:27 mA标称供电电压:5 V
表面贴装:YES技术:BICMOS
温度等级:COMMERCIAL端子面层:Tin/Lead (Sn/Pb)
端子形式:GULL WING端子节距:1.27 mm
端子位置:DUALBase Number Matches:1

AD7242JR-REEL 数据手册

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LC2MOS Dual, Complete,  
12-Bit/14-Bit Serial DACs  
a
AD7242/AD7244  
FEATURES  
FUNCTIONAL BLOCK DIAGRAM  
Two 12-Bit/14-Bit DACs with Output Amplifiers  
AD7242: 12-Bit Resolution  
AD7244: 14-Bit Resolution  
On-Chip Voltage Reference  
Fast Settling Time  
AD7242: 3 s to ؎1/2 LSB  
AD7244: 4 s to ؎1/2 LSB  
High Speed Serial Interface  
Operates from ؎5 V Supplies  
Specified Over –40؇C to +85؇C in Plastic Packages  
Low Power – 130 mW typ  
GENERAL DESCRIPTION  
The AD7242/AD7244 is a fast, complete, dual 12-bit/14-bit  
voltage output D/A converter. It consists of a 12-bit/14-bit  
DAC, 3 V buried Zener reference, DAC output amplifiers and  
high speed serial interface logic.  
Interfacing to both DACs is serial, minimizing pin count and  
allowing a small package size. Standard control signals allow  
interfacing to most DSP processors and microcontrollers.  
Asynchronous control of DAC updating for both DACs is made  
possible with a separate LDAC input for each DAC.  
PRODUCT HIGHLIGHTS  
1. Complete, Dual 12-Bit/14-Bit DACs  
The AD7242/AD7244 operates from ±5 V power supplies,  
providing an analog output range of ±3 V. A REF OUT/REF  
IN function allows the DACs to be driven from the on-chip 3 V  
reference or from an external reference source.  
The AD7242/AD7244 provides the complete function for  
generating voltages to 12-bit/14-bit resolution. The part  
features an on-chip reference, output buffer amplifiers and  
two 12-bit/14-bit D/A converters.  
The AD7242/AD7244 is fabricated in Linear Compatible  
CMOS (LC2MOS), an advanced mixed technology process that  
combines precision bipolar circuits with low power CMOS  
logic. Both parts are available in a 24-pin, 0.3-inch wide, plastic  
or hermetic dual-in-line package (DIP) and in a 28-pin, plastic  
small outline (SOIC) package. The AD7242 and AD7244 are  
available in the same pinout to allow easy upgrade from 12-bit  
to 14-bit performance.  
2. High Speed Serial Interface  
The AD7242/AD7244 provides a high speed, easy-to-use,  
serial interface allowing direct interfacing to DSP processors  
and microcontrollers. A separate serial port is provided for  
each DAC.  
3. Small Package Size  
The AD7242/AD7244 is available in a 24-pin DIP and a 28-  
pin SOIC package offering considerable space saving over  
comparable solutions.  
REV. A  
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  
which may result from its use. No license is granted by implication or  
otherwise under any patent or patent rights of Analog Devices.  
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.  
Tel: 617/329-4700  
Fax: 617/326-8703  
World Wide Web Site: http://www.analog.com  
© Analog Devices, Inc., 1996  

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