CS30 datasheet(14/18 Pages) STMICROELECTRONICS

部品番号	CS30

部品情報	High side current sense high voltage op amp

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Parameter definitions

CS30

14/18

DocID026040 Rev 1

4.5

Output voltage accuracy

The output voltage accuracy is the difference between the actual output voltage and the

theoretical output voltage. Ideally, the current sensing output voltage should be equal to the

input differential voltage multiplied by the theoretical gain, as in the following formula:

Vout-th=Av Vsense

The actual value is very slightly different, mainly due to the effects of:

•

the input offset voltage Vos,

•

non-linearity

Figure 22. Vout vs. Vsense theoretical and actual characteristics

The output voltage accuracy, expressed in percentage, can be calculated with the following

formula:

with Av = 20 V/V for CS30A, Av = 50 V/V for CS30B and Av = 100 V/V for CS30C.

ΔVout

abs Vout Av Vsense

⋅

()

–

()

Av Vsense

⋅

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CS30 データシート(PDF) 14 Page - STMicroelectronics