Patent ID: 8749219

Claim:
A current generating circuit comprising: a first current source configured to generate a first current (I 1 ) having positive temperature characteristics; a second current source configured to generate a second current (I 2 ) having flat temperature characteristics; a compensation transistor configured as an NPN bipolar transistor, and arranged such that the second current (I 2 ) flows through from a collector of the compensation transistor and an emitter of the compensation transistor; a first current mirror circuit configured to multiply a base current of the compensation transistor by a first coefficient so as to generate a third current (I 3 ) having negative temperature characteristics; and a current path through which a fourth current (I 4 ) flows, wherein an output terminal of the first current source, an output terminal of the first current minor circuit and one end of the current path are connected at one node, and I 1 =I 3 +I 4 is established, and the fourth current (I 4 ) is the difference between the first current (I 1 ) and the third current (I 3 ), and wherein the current generating circuit is configured to output a current based on the fourth current (I 4 ).