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AMC1200SDUBR

AMC1200SDUBR首页预览图
型号: AMC1200SDUBR
PDF文件:
  • AMC1200SDUBR PDF文件
  • AMC1200SDUBR PDF在线浏览
功能描述: Fully-Differential Isolation Amplifier Low Offset Error: 1.5 mV max
PDF文件大小: 488.89 Kbytes
PDF页数: 共22页
制造商: TI1[Texas Instruments]
制造商LOGO: TI1[Texas Instruments] LOGO
制造商网址: http://www.ti.com
捡单宝AMC1200SDUBR
PDF页面索引
120%
G =G +
ERRTOT ERR
R
2
R
IN
R
IN
R
2
R
1
L1
L2
AMC1200
SBAS542 APRIL 2011
www.ti.com
VOLTAGE MEASUREMENT
The AMC1200 can also be used for isolated voltage measurement applications, as shown in a simplified way in
Figure 34. In such applications, usually a resistor divider (R
1
and R
2
in Figure 34) is used to match the relatively
small input voltage range of the AMC1200. R
2
and the input resistance R
IN
of the AMC1200 also create a
resistance divider that results in additional gain error. With the assumption that R
1
and R
IN
have a considerably
higher value than R
2
, the resulting total gain error can be estimated using Equation 1:
Where G
ERR
= the gain error of AMC1200.
(1)
Figure 34. Voltage Measurement Application
14 Copyright © 2011, Texas Instruments Incorporated
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