Integrators for sensor applications

An analyte sensor system, comprising:

• a sensor assembly including:
• an analyte sensor configured to, when the sensor assembly is positioned against a body, produce a sensor signal that is representative of a level of an analyte in the body,
• a housing portion coupled to the sensor assembly, and
• a battery disposed within the housing portion;
• and
• an electronics assembly configured to removably couple to the housing portion and the sensor assembly, the electronics assembly including:
• battery contacts configured to electrically couple to the battery when the electronics assembly is coupled to the sensor assembly,
• a sensor contact configured to receive the sensor signal from the analyte sensor,
• an integrator circuit coupled to the sensor contact and configured to provide an integrator output signal representative of the sensor signal integrated from a first time to a second time;
• a reset circuit coupled to the integrator circuit and configured to reset the integrator output signal in response to a reset signal;
• and
• a processor circuit coupled to the integrator circuit and the reset circuit, the processor circuit configured to determine a value of the integrator output signal and to provide the reset signal to the reset circuit when an integration interval has elapsed from the first time, the integration interval based at least in part on the integrator output signal.

A method of processing a sensor signal, comprising:

• receiving, by an electronics assembly, a sensor signal from a sensor assembly;
• integrating the sensor signal from a first time to a second time to generate an integrator output signal;
• determining a value of the integrator input signal;
• receiving a reset signal when an integration interval has elapsed from the first time, the integration interval based at least in part on one the integrator output signal;
• and
• in response to receiving the reset signal, resetting the integrated output signal.