Detecting overloading of an analog-to-digital converter of an implantable medical device

An implantable medical device, comprising:

• an analog-to-digital converter (ADC) that converts an analog input signal from a sensor into a digital signal;
• an overload detection module that determines that the ADC is in an overload condition based on at least one signal from the ADC;
• and
• a processor that disregards the digital signal in response to the determination.

An implantable medical device, comprising:

• an analog-to-digital converter (ADC) that converts an analog input signal from a sensor into a digital signal, wherein the ADC includes a clamping integrator that generates a clamp signal when the clamping integrator is operating in a clamped mode;
• an overload detection module that determines that the ADC is in an overload condition based on the clamp signal from the ADC;
• and
• a processor that disregards the digital signal in response to the determination.

An implantable medical device, comprising:

• an analog-to-digital converter (ADC) that converts an analog input signal from a sensor into a digital signal;
• an overload detection module that that generates a low toggle signal if a quantizer of the ADC outputs the same value during a threshold number of consecutive clock cycles and determines that the ADC is in an overload condition based on the low toggle;
• and
• a processor that disregards the digital signal in response to the determination.