Patent ID: 7671774

Claim:
An analog-to-digital converter comprising: a first integrator having a first input, the first integrator being configured to produce a first integrated output; a first switched resistance element coupled between the first input and the first integrated output, wherein the first integrated output is altered when the first switched resistance element is activated; a quantizer coupled to the first integrated output, the quantizer having a digital output, wherein the quantizer is configured to convert the first integrated output to a digital value; a digital-to-analog converter coupled between the digital output and the first input, wherein the digital-to-analog converter is configured to convert the digital value to an analog value; and a controller coupled to the first integrator and to the first switched resistance element, the controller being configured to; monitor the first integrator for an overload condition; activate the first switched resistance element in response to the first condition; and deactivate the first switched resistance element when the first condition no longer exists.