Patent ID: 7714640

Claim:
A bandgap circuit devoid of a trim resistors comprising a high gain amplifier, a plurality of bandgap resistors, and at least four bipolar devices interconnected across circuitry in a predetermined configuration capable to produce a bandgap voltage (V BG ), to a first order, approximating a predetermined designed bandgap voltage (V BGDESIGN ), wherein individually, the emitter area of at least three or more of the four bipolar devices is greater than a traditional emitter area of an equivalent traditional bipolar device by a factor within a range of approximately 1.75 to 2.25, wherein the predetermined designed bandgap voltage (V BGDESIGN ) approximates a voltage in the range of 1.15 to 1.35 volts and the bandgap voltage (V BG ) approximates a voltage of within 10% of the designed bandgap voltage (V BGDESIGN ), and wherein the plurality of bandgap resistors are configured to be horizontally positioned in relation to a heat source approximately situated beyond a linear distance of approximately 200 μm.