Pin name difference in official OPA357AIDBVT and OPA357AIDBVRG4 symbol

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Hi All,

I would like to ask a question on OPA357.

I downloaded symbols from http://focus.ti.com/docs/prod/folders/print/opa357.html#symbols and noted difference between

1.    OPA357AIDBVT

2.    OPA357AIDBVRG4

In 1, pin 3 and pin 4 are named “PIN” and “MIN”, while in 2 they are named “+In” “-In”.

So does the “PIN” and “MIN” in 1 means “positive in” and “negative in”, or there are other reason?

Thanks,

Zheng