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LMP7704 PDF预览

LMP7704

更新时间: 2024-11-22 03:51:43
品牌 Logo 应用领域
美国国家半导体 - NSC 放大器
页数 文件大小 规格书
22页 1402K
描述
Precision, CMOS Input, RRIO, Wide Supply Range Amplifiers

LMP7704 数据手册

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October 2006  
LMP7701/LMP7702/LMP7704  
Precision, CMOS Input, RRIO, Wide Supply Range  
Amplifiers  
General Description  
Features  
The LMP7701/LMP7702/LMP7704 are single, dual, and  
quad low offset voltage, rail-to-rail input and output precision  
amplifiers each with CMOS input stage and wide supply  
voltage range. The LMP7701/LMP7702/LMP7704 are part of  
Unless otherwise noted, typical values at VS = 5V  
n Input offset voltage (LMP7701)  
n Input offset voltage (LMP7702/LMP7704) 220 µV (max)  
n Input bias current  
n Input voltage noise  
n CMRR  
200 µV (max)  
200 fA  
9 nV/  
the LMP precision amplifier family and are ideal for sensor  
interface and other instrumentation applications.  
130 dB  
130 dB  
The guaranteed low offset voltage of less than 200 µV  
along with the guaranteed low input bias current of less than  
1 pA make the LMP7701 ideal for precision applications.  
The LMP7701/LMP7702/LMP7704 are built utilizing VIP50  
technology, which allows the combination of a CMOS input  
stage and a 12V common mode and supply voltage range.  
This makes the LMP7701/LMP7702/LMP7704 great choices  
in many applications where conventional CMOS parts can-  
not operate under the desired voltage conditions.  
n Open loop gain  
n Temperature range  
n Unity gain bandwidth  
n Supply current (LMP7701)  
n Supply current (LMP7702)  
n Supply current (LMP7704)  
n Supply voltage range  
n Rail-to-rail input and output  
−40˚C to 125˚C  
2.5 MHz  
715 µA  
1.5 mA  
2.9 mA  
2.7V to 12V  
The LMP7701/LMP7702/LMP7704 have a rail-to-rail input  
stage that significantly reduces the CMRR glitch commonly  
associated with rail-to-rail input amplifiers. This is achieved  
by trimming both sides of the complimentary input stage,  
thereby reducing the difference between the NMOS and  
PMOS offsets. The output of the LMP7701/LMP7702/  
LMP7704 swings within 40 mV of either rail to maximize the  
signal dynamic range in applications requiring low supply  
voltage.  
Applications  
n High impedance sensor interface  
n Battery powered instrumentation  
n High gain amplifiers  
n DAC buffer  
n Instrumentation amplifier  
n Active filters  
The LMP7701 is offered in the space saving 5-Pin SOT23  
package, the LMP7702 is offered in the 8-Pin MSOP, and the  
quad LMP7704 is offered in the 14-Pin TSSOP package.  
These small packages are ideal solutions for area con-  
strained PC boards and portable electronics.  
Typical Application  
20127305  
Precision Current Source  
LMP is a trademark of National Semiconductor Corporation.  
© 2006 National Semiconductor Corporation  
DS201273  
www.national.com  

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