Patent ID: 8400213

Claim:
A complementary band-gap voltage reference circuit comprising: first and second groups of transistors, wherein each group comprises at least one transistor of npn type and at least one transistor of pnp type and the transistors of different types in the same group having different smaller or bigger emitter current conduction areas; emitter-collector paths of a first transistor of each of said first and second groups being connected in parallel from a common connection so as to present differential base-emitter voltages across said first transistors, wherein said first transistors having a same first type and different emitter current conduction areas; a second transistor of each of said first and second groups being connected with its emitter-collector path in parallel with a base-emitter junction of said first transistor of the same group so as to present differential base-emitter voltages of said second transistors across said first and second groups of transistors, wherein said second transistors having the same type and different emitter current conduction areas; and output terminals connected to receive a regulated voltage which is an additive function of said differential base-emitter voltages and of additive base-emitter voltages of transistors with smaller emitter current conduction area and different type.