Thermopile temperature sensor with a reference sensor therein

A system comprising:

• a sensor package, the sensor package comprising:
• a substrate;
• a thermopile sensor disposed over the substrate, the thermopile sensor configured to generate a first electrical signal based upon detected electromagnetic radiation;
• a reference thermopile sensor disposed over the substrate, the reference thermopile sensor configured to generate a second electrical signal based upon detected electromagnetic radiation;
• a reference temperature sensor disposed over the substrate, the reference temperature sensor configured to generate a signal representing a temperature associated with the thermopile sensor and the reference thermopile sensor;
• a lid assembly disposed over the thermopile sensor and the reference thermopile sensor, the lid assembly comprising a transparent structure that passes electromagnetic radiation occurring in a limited spectrum of wavelengths and an electromagnetic blocker disposed over the lid assembly, the electromagnetic blocker defining an aperture over the thermopile sensor,
• wherein at least a portion of the electromagnetic blocker is positioned over the reference thermopile sensor, the electromagnetic blocker configured to at least substantially block the electromagnetic radiation occurring in a limited spectrum of wavelengths;
• and
• integrated circuitry in electrical communication with the sensor package, the application-specific integrated circuitry configured to generate an electrical signal corresponding to the detected electromagnetic radiation.