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AMC1200-Q1 PDF预览

AMC1200-Q1

更新时间： 2024-11-12 11:06:39
品牌 Logo 应用领域
德州仪器 - TI 放大器
页数 文件大小 规格书
23页 901K
描述
汽车类 ±250mV 输入、精密电流检测基本隔离式放大器

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AMC1200-Q1 数据手册

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AMC1200-Q1  
www.ti.com  
SBAS585 –SEPTEMBER 2012  
Fully Differential Isolation Amplifier  
Check for Samples: AMC1200-Q1  
1
FEATURES  
DESCRIPTION  
The AMC1200-Q1 is a precision isolation amplifier  
with an output separated from the input circuitry by a  
silicon dioxide (SiO2) barrier that is highly resistant to  
magnetic interference. This barrier has been certified  
to provide galvanic isolation of up to 4000 VPEAK  
according to UL1577 and IEC60747-5-2. Used in  
conjunction with isolated power supplies, this device  
prevents noise currents on a high common-mode  
voltage line from entering the local ground and  
interfering with or damaging sensitive circuitry.  
2
•
AEC-Q100 Qualified With the Following  
Results:  
–
Device Temperature Grade 2: –40°C to  
105°C Ambient Operating Temperature  
Range  
–
–
Device HBM ESD Classification Level H2  
Device CDM ESD Classification Level C3B  
•
±250-mV Input Voltage Range Optimized for  
Shunt Resistors  
The input of the AMC1200-Q1 is optimized for direct  
connection to shunt resistors or other low-voltage-  
level signal sources. The excellent performance of  
the device supports accurate current control, resulting  
in system-level power saving and, especially in  
motor-control applications, lower torque ripple. The  
common-mode voltage of the output signal is  
automatically adjusted to either the 3-V or 5-V low-  
side supply.  
•
•
•
•
Very Low Nonlinearity: 0.075% Max. at 5 V  
Low Offset Error: 1.5 mV Max.  
Low Noise: 3.1 mVRMS Typ.  
Low High-Side Supply Current: 8 mA Max. at  
5 V  
•
•
•
•
•
Input Bandwidth: 60 kHz Min.  
Fixed Gain: 8 (0.5% Accuracy)  
High Common-Mode Rejection Ratio: 108 dB  
3.3-V Operation on Low-Side  
The AMC1200-Q1 is fully specified over the extended  
industrial temperature range of –40 °C to 105 °C and  
is available in the SMD-type, gullwing-8 package.  
Certified Galvanic Isolation:  
–
–
–
–
UL1577 and IEC60747-5-2 Approved  
Isolation Voltage: 4000 VPEAK  
Working Voltage: 1200 VPEAK  
Transient Immunity: 10 kV/µs Min.  
•
•
Typical 10-Year Lifespan at Rated Working  
Voltage (see Application Report SLLA197)  
Fully Specified Over the Extended Industrial  
Temperature Range  
APPLICATIONS  
•
Shunt Resistor Based Current Sensing in:  
–
–
–
–
Motor Control  
Green Energy  
Frequency Inverters  
Uninterruptible Power Supplies  
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.  
2
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 © 2012, Texas Instruments Incorporated  
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