I am looking for an ic with temperature sensor built in. What I really need is a SMD IC that I can use to measure the temperature of a PCB pad. This means that the IC has to have some pins to conduct the temperature inside the IC, then the IC will output a ADC (0 to 5) or analog (0 to 5) signal. The IC I need has to be very small and preferably have Vcc, GND, and Signal. In addition to these pins it should have one or more pins to conduct the heat of the pad I am trying to measure inside the IC. The temperature range I am looking for is -40 to 100 degrees Celsius.