An analog-to-digital converter based on an interleaving architecture is disclosed. The housing includes an attaching device for attaching the sprayer nozzle to the housing. The other end is then secured with respect to the eyelet by a crimp, the excess length being cut off after the length of the tether has been given an appropriate tension. As a result, the first driving circuit stops outputting drive signals, such that the first charge pump circuit stops its operation. The moving electrodes and the fixed electrodes have generally planar major surfaces perpendicular to the plane of the substrate. A wear resisting member is installed on a side wall of the center electrode for minimizing the wear of the side wall caused by the sparks to increase the useful life of the spark plug.