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LMP8601

更新时间： 2024-11-24 11:06:39
品牌 Logo 应用领域
德州仪器 - TI 放大器运算放大器放大器电路
页数 文件大小 规格书
29页 1409K
描述
具有直列式滤波器功能的 -22V 至 60V、双向电流感应放大器

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中文翻译

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LMP8601 数据手册

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LMP8601, LMP8601-Q1  
www.ti.com  
SNOSAR2E –SEPTEMBER 2008–REVISED MARCH 2013  
60-V Common-Mode Bidirectional Precision Current Sensing Amplifier  
Check for Samples: LMP8601, LMP8601-Q1  
1
FEATURES  
DESCRIPTION  
The LMP8601 and LMP8601Q are fixed 20x gain  
2
•
Unless Otherwise Noted, Typical Values at TA  
= 25°C, VS = 5.0V, Gain = 20x  
precision amplifiers. The part will amplify and filter  
small differential signals in the presence of high  
common mode voltages. The input common mode  
voltage range is –22V to +60V when operating from a  
single 5V supply. With 3.3V supply, the input  
common mode voltage range is from –4V to +27V.  
The LMP8601 and LMP8601Q are members of the  
Linear Monolithic Precision (LMP®) family and are  
ideal parts for unidirectional and bidirectional current  
sensing applications. All parameter values of the part  
that are shown in the tables are 100% tested and all  
bold values are also 100% tested over temperature.  
–
–
–
–
–
–
TCVOS 10μV/°C Max  
CMRR 90 dB Min  
Input offset voltage 1 mV Max  
CMVR at VS = 3.3V -4V to 27V  
CMVR at VS = 5.0V -22V to 60V  
Operating Ambient Temperature Range -  
40°C to 125°C  
–
LMP8601Q Available in Automotive AEC-  
Q100 Grade 1 Qualified Version  
The part has a precise gain of 20x which is adequate  
in most targeted applications to drive an ADC to its  
full scale value. The fixed gain is achieved in two  
separate stages, a preamplifier with a gain of 10x and  
an output stage buffer amplifier with a gain of 2x. The  
connection between the two stages of the signal path  
is brought out on two pins to enable the possibility to  
create an additional filter network around the output  
buffer amplifier. These pins can also be used for  
alternative configurations with different gain as  
described in Application Information.  
–
–
Single-Supply Bidirectional Operation  
All Min / Max Limits 100% Tested  
APPLICATIONS  
•
High-Side and Low-Side Driver Configuration  
Current Sensing  
•
•
•
•
•
•
Bidirectional Current Measurement  
Current Loop to Voltage Conversion  
Automotive Fuel Injection Control  
Transmission Control  
Power Steering  
Battery Management Systems  
Typical Applications  
D
S
I
I
L
Inductive  
Load  
C
load  
G
+5V  
48V  
48V  
I
B
+
-
+5V  
+3.3V  
+
-
+
-
Charger  
D
G
Inductive  
Load  
24V  
S
1
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.  
2
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 © 2008–2013, Texas Instruments Incorporated  
1234567...29

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