Patent ID: 7667632

Claim:
An electronic device, comprising: an internal data storage location coupled to an electrical conductor; and a quantizing circuit coupled to the internal data storage location via the electrical conductor, the quantizing circuit comprising: an analog-to-digital converter having an input and an output, wherein the input is coupled to the electrical conductor, wherein the analog-to-digital converter comprises a delta-sigma modulator comprising: a comparator having first and second inputs and an output, wherein the output of the comparator is coupled to the digital filter, wherein the first input is coupled to the electrical conductor, and wherein the second input is coupled to a reference voltage source; a capacitor having one plate coupled to the electrical conductor; and a switch coupled to the electrical conductor in series with the internal data storage location, wherein the switch comprises a gate coupled to the output of the comparator; and a digital filter coupled to the output of the analog-to-digital converter.