Apparatus for measure of quantity and associated method of manufacturing

An integrated device comprising:

• at least one electrical conductor to conduct a current,
• at least one sensing circuitry arranged to be placed in proximity to the at least one electrical conductor, the at least one sensing circuitry comprising at least one magnetic field sensing element, the at least one magnetic field sensing element arranged to be biased by a current derived from and/or related to the current into or out of an input, such that the output from the at least one magnetic field sensing element is related to the current through the electrical conductor and the current into or out of the input,
• wherein the integrated device is configured to provide an output measure of power, energy, or reactive power through the at least one electrical conductor,
• wherein the integrated device is encapsulated in an integrated circuit package having between 3 and 8 pins, and
• at least one of:
• wherein the at least one electrical conductor is bonded to the integrated circuit package, and
• wherein the at least one electrical conductor is encapsulated in the integrated circuit package.

A device configured to provide a measure of power, energy, or reactive power, wherein the device is configured to fit inside either:

• at least one of:
• a standard-sized plug, and a standard-sized socket, or
• at least one of:
• a plug having a substantially similar form factor as a standard-sized plug, and a socket having a substantially similar form factor as a standard-sized socket.