BAND GAP REFERENCE VOLTAGE GENERATOR, CAPABLE OF BEING MINIATURIZED AND SUPPLYING A REFERENCE VOLTAGE UNDER 1V

摘要

PURPOSE: A band gap reference voltage generator is provided to supply a reference voltage under 1V regardless of temperature variation while reducing the number of resistor which requires large area.;CONSTITUTION: A band gap reference voltage generator includes a third and fourth resistance(R3-R4), a first and second bipolar transistor, and fourth and fifth NMOS transistor(M4-M5). The PMOS transistor has a gate and a source which are connected to a first node and a power terminal in common and has a drain connected to 2-4 nodes respectively. A feedback amplifier has inverting and non-inverting terminal which are connected to the second and third node respectively. The first and second bipolar transistor has emitters which are connected to a fifth node and the third node and has collector and base which are connected to the ground.;COPYRIGHT KIPO 2010