A high dynamic range amplifier circuit for amplifying pixel signals of an imager device is disclosed. The fastener is double-ended and allows two opposed items to be joined. An interlayer insulating film formed as a layer below an upper wiring is provided on the active region and the control electrodes. Permanent magnets and heat conductive members are arranged on a magnetheat conductive member arranged plate. The relative values of inductance of the choke coil and transformer primary and the capacitance of the tuning capacitors is set to provide a resonant frequency that is equal to the nominal frequency of the AC input power.