“VB is bias voltage within common-mode range, dependent on VREF’'.这句话不太理解,
(1)Vref不就是偏压么?怎么还要加VB这个偏压?
(2)还有INA156的热电偶应用电路VB那个地方是接地的?有什么不同么?是应用有区别还是运放有区别?
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