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LMP7312MAX PDF预览

LMP7312MAX

更新时间: 2024-11-04 05:42:27
品牌 Logo 应用领域
美国国家半导体 - NSC 运算放大器放大器电路光电二极管
页数 文件大小 规格书
22页 1014K
描述
Precision SPI-Programmable AFE with Differential/Single-Ended Input/Output

LMP7312MAX 技术参数

生命周期:Transferred零件包装代码:SOIC
包装说明:,针数:14
Reach Compliance Code:unknownECCN代码:EAR99
HTS代码:8542.33.00.01风险等级:5.6
Is Samacsys:N放大器类型:OPERATIONAL AMPLIFIER
JESD-30 代码:R-PDSO-G14端子数量:14
封装主体材料:PLASTIC/EPOXY封装形状:RECTANGULAR
封装形式:SMALL OUTLINE认证状态:Not Qualified
子类别:Operational Amplifier表面贴装:YES
端子形式:GULL WING端子位置:DUAL
Base Number Matches:1

LMP7312MAX 数据手册

 浏览型号LMP7312MAX的Datasheet PDF文件第2页浏览型号LMP7312MAX的Datasheet PDF文件第3页浏览型号LMP7312MAX的Datasheet PDF文件第4页浏览型号LMP7312MAX的Datasheet PDF文件第5页浏览型号LMP7312MAX的Datasheet PDF文件第6页浏览型号LMP7312MAX的Datasheet PDF文件第7页 
June 18, 2010  
LMP7312  
Precision SPI-Programmable AFE with Differential/Single-  
Ended Input/Output  
General Description  
Features  
The LMP7312 is a digitally programmable variable gain am-  
plifier/attenuator. Its wide input voltage range and superior  
precision make it a prime choice for applications requiring  
high accuracy such as data acquisition systems for IO mod-  
ules in programmable logic control (PLC). The LMP7312  
provides a differential output to maximize dynamic range and  
signal to noise ratio, thereby reducing the overall system er-  
ror. It can also be configured to handle single ended input data  
converters by means of the VOCM pin (see application section  
for details). The inputs of LMP7312 can be configured in at-  
tenuation mode to handle large input signals of up to +/- 15V,  
as well as in amplification mode to handle current loops of  
0-20mA and 4-20mA.The LMP7312 is equipped with a null  
switch to evaluate the offset of the internal amplifier. A guar-  
anteed 0.035% maximum gain error (for all gains) and a  
maximum gain drift of 5ppm over the extended industrial tem-  
perature range (-40° to 125°C) make the LMP7312 very  
attractive for high precision systems even under harsh con-  
ditions. A low input offset voltage of 100µV and low voltage  
noise of 3µVpp give the LMP7312 a superior performance.  
The LMP7312 is fully specified from -40° to 125°C and is  
available in SOIC-14 package.  
Typical Values, TA = 25°C, V+=5V, V-=0V.  
Gain bandwidth  
Input voltage range (G= 0.096 V/V)  
Core op-amp input offset voltage  
Supply current  
1 MHz  
-15V to +15V  
100 µV (max)  
2 mA (max)  
Gain (Attenuation Mode)  
0.096 V/V, 0.192 V/V  
0.384 V/V, 0.768 V/V  
1 V/V, 2 V/V  
0.035% (max)  
90 dB (min)  
Gain (AmplificationMode)  
Gain Error  
Core op-amp PSRR  
CMRR  
Adjustable output common mode  
Temperature range  
Package  
80 dB (min)  
1V to 4V  
−40 to 125°C  
14-Pin SOIC  
Applications  
Signal conditioning AFE  
±10V; ±5V; 0-5V; 0-10V; 0-20mA; 4-20mA  
Data Acquisition systems  
Motor control  
Instrument and process control  
Remote sensing  
Programmable automation control  
Typical Application  
30075513  
LMP™ is a trademark of National Semiconductor Corporation.  
© 2010 National Semiconductor Corporation  
300755  
www.national.com  

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