REFERENCE VOLTAGE GENERATING CIRCUIT, INTEGRATED CIRCUIT AND VOLTAGE OR CURRENT SENSING DEVICE

摘要

A reference voltage generating circuit (9) comprising a first bandgap voltage source (4X) arranged to output a first bandgap voltage (VbgX) exhibiting a first type deviation in response to a strain applied at die level in a given direction; a second bandgap voltage source (4Y) arranged to output a second bandgap voltage (VbgY) exhibiting a second type deviation in response to a strain applied at die level in the given direction, said second type deviation being opposite to the first type deviation of the first bandgap voltage; and an adding circuit (5) arranged to add the first bandgap voltage and the second bandgap voltage, and to output a temperature drift and strain drift compensated reference voltage (Vref).