Patent ID: 6853238

Claim:
A bandgap reference circuit providing a reference node at an output, the circuit comprising an amplifier having first and second inputs and an output, the output being coupled to an input of a current control block, the current control block having first and second outputs, a first output being coupled to the output reference node and the second output being coupled to a dual feedback loop of the amplifier, thereby coupling the output of the amplifier to the first and second inputs of the amplifier, each of the first ad second inputs being additionally coupled to a respective first and second reference node, one of the inputs being coupled directly to its respective reference node via an active device and the second input node being coupled to its respective reference node via an impedance element in series with a second active device, said active devices being bipolar transistors and the dual feedback loop being provided with second active elements; at least one feedback path of the dual feedback loop being coupled via a third reference node to a load configured to provide a CTAT current.