Patent ID: 7019508

Claim:
A circuit for providing a temperature compensated current comprising: a input transistor having an input transistor control terminal and having an input transistor current terminal passing a reference current; a first buffer transistor having a first buffer transistor control terminal operable to receive a buffer control voltage proportional to the reference current and further having a first buffer transistor current terminal operable to pass a first leakage current; a first leakage block comprising a temperature dependent block operable to pass the first leakage current; a second buffer transistor having a second buffer transistor control terminal operable to receive the buffer control voltage and further having a second buffer transistor current terminal operable to pass a second leakage current; a second leakage block operable to pass the second leakage current; and an output transistor operable to generate an output current proportional to the reference current and further proportional to a ratio of the first and second leakage currents.