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参数资料
| 型号： | TSC102IDT |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 模拟信号调理 |
| 英文描述： | SPECIALTY ANALOG CIRCUIT, PDSO8 |
| 封装： | ROHS COMPLIANT, PLASTIC, TSSOP-8 |
| 文件页数： | 4/24页 |
| 文件大小： | 0K |
| 代理商： | TSC102IDT |
Parameter definitions
TSC102
12/24
Doc ID 16754 Rev 1
6
Parameter definitions
6.1
Common-mode rejection ratio (CMR)
The common-mode rejection ratio (CMR) measures the ability of the current sensing
amplifier to reject any DC voltage applied on both inputs Vp and Vm. The CMR is referred
back to the input so that its effect can be compared with the applied differential signal. The
CMR is defined by the formula:
6.2
Supply voltage rejection ratio (SVR)
The supply voltage rejection ratio (SVR) measures the ability of the current sensing amplifier
to reject any variation of the supply voltage VCC. The SVR is referred back to the input so
that its effect can be compared with the applied differential signal. The SVR is defined by the
formula:
6.3
Gain (Av) and input offset voltage (Vos)
The input offset voltage is defined as the intersection between the linear regression of the
Vsense =Vsense1 = 50 mV and Va12 is the output voltage with Vsense =Vsense2 = 5 mV, then
Vos can be calculated with the formula:
The amplification gain Av is defined as the ratio between the output voltage and the input
differential voltage.
CMR
20
–
ΔV
a1
ΔV
icm
Av
------------------------------
log
=
SVR
20
–
ΔV
a1
ΔV
cc
Av
---------------------------
log
=
V
os
V
sense1
V
sense1
V
sense2
–
V
a11
V
a12
–
------------------------------------------------
V
out1
–
=
Av
V
out
V
sense
------------------
=
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| TSC1031 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:High-voltage, high-side current sense amplifier |
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