Patent ID: 8496379

Claim:
A method of measuring temperature, said method comprising: adjusting a first current that is driven to a first node and a second current that is driven to a second node until a first voltage measured at said first node and a second voltage measured at said second node are substantially equal, wherein said first node is coupled to ground and wherein said second node and a first resistor are coupled in series to ground and in parallel to said first node, and wherein said second current is driven using a first number of current-source elements; adjusting a third current that is driven to a third node until a third voltage measured at said third node is substantially equal to a reference fourth voltage, wherein said third node and a second resistor are coupled in series to ground and in parallel to said first node, and wherein said third current is driven using a second number of current-source elements; and using said first number and said second number when said third and fourth voltages are substantially equal and measures of said first and second resistors to determine said temperature.