Patent ID: 7952421

Claim:
A circuit for generating a current proportional to absolute temperature, the circuit comprising: a first current path including a first resistive element and first transistor coupled at a first node and a second current path in parallel with the first current path including a second resistive element and a second transistor coupled at a second node; a PTAT current path in parallel with the first and second current paths including a first current source configured to be controlled by a signal from the first node, a second current source configured to be controlled by a signal from the second node, and a current sensing element inter-coupled between the first current source and the second current source at a third node and fourth node, respectively; a control terminal of the first transistor coupled to the fourth node and a control terminal of the second transistor coupled to the third node; and a third current path including a third current source configured to be controlled by the signal of the second node and to emboss a reference current into a current mirror.