Environmental sensor

An environmental sensor for providing digital measurement values of environmental magnitudes, comprising:

• an analog circuitry, configured to provide analog environmental measurement values of environmental magnitudes obtained through measurements performed at least in one of the plurality of scale subranges;
• an analog-to-digital converter, ADC, unit, configured to convert the analog environmental measurement values onto digital versions of the analog environmental measurement values;
• a controller according to any of the preceding claims, configured to:
• select, among the plurality of scale subranges, the one scale subrange in which the at least one analog environmental measurement is to be performed,
• select the offset information and the gain information which are associated with the selected scale subrange and which describe the offset and the gain, respectively, to be applied by the analog circuitry to perform the at least one second analog environmental measurement in the selected scale subrange;
• and
• provide the offset information and the gain information to the analog circuitry,
• so that the analog circuitry applies the offset and the gain to the second analog environmental measurement in the selected scale subrange, so as to obtain at least one analog environmental measurement value lying in the selected scale subrange and a digital version of the at least one analog environmental measurement value lying in the selected scale subrange.

A method for providing digital measurements from analog environmental measurements acquired by analog circuitry, the digital measurements lying in a global scale range or wide scale range, wherein the global scale range or wide scale range is subjected to a subdivision into a plurality of scale subranges which are proper subranges of the global scale range or wide scale range, wherein the scale subranges are such that one first scale subrange is different from one second scale subrange and the first scale subrange is not a proper subrange of the second scale subrange and the second scale subrange is not a proper subrange of the first scale subrange, the method comprising:

• selecting, among the plurality of scale subranges, one scale subrange in which at least one second analog environmental measurement value is to be acquired,
• selecting an offset information and a gain information which are associated with the selected scale subrange and which describe an offset and a gain, respectively, to be applied by the analog circuitry to perform a second analog environmental measurement in the selected scale subrange;
• and
• providing the offset information and the gain information to the analog circuitry.