CMOS VOLTAGE REFERENCE WITH STACKED BASE-TO-EMITTER VOLTAGES

摘要

A band-gap voltage reference forming part of a CMOS IC chip. A DELTA VBE voltage is developed by stacked pairs of parasitic bipolar transistors, with the transistors of each pair operated at different current densities. MOS buffer transistors are connected at corresponding ends of the stacks where the DELTA VBE voltage is developed. The bipolar transistors are driven by MOS current sources.