The 1st current source which generates the 1st electric current which possesses

摘要

PROBLEM TO BE SOLVED: To provide a current generation circuit capable of generating a current having a temperature dependency.;SOLUTION: A first current source 42 generates a first current I1 having positive temperature characteristics. A second current source 44 generates a second current I2. A first current mirror circuit 46 generates a third current I3 by multiplying a base current Ib of a compensating transistor Q5 which is an NPN bipolar transistor and is disposed on a rout of the second current I2 by a first coefficient (K1). The second current mirror circuit 48 generates a fourth current I4' in proportion to a difference between the first current I1 and the third current I3. The current generation circuit 40 outputs a total current of a fifth current I5 in proportion to the base current Ib and the fourth current I4'.;COPYRIGHT: (C)2012,JPO&INPIT