Sensor signal multiplexer and digitizer with analog notch filter and optimized sample frequency

A sensor signal path, comprising:

• a multiplexer configured to operate at a first operating frequency and receive a plurality of sensor signals at a first sample frequency, wherein the multiplexer generates a multiplexed output;
• a demultiplexer configured to demultiplex the multiplexed output, resulting in a plurality of demultiplexed sensor signals;
• a plurality of integrators comprising a total number of integrators that is less than or equal to a total number of sensor signals of the plurality of sensor signals, wherein the plurality of integrators is configured to accumulate samples of the plurality of demultiplexed sensor signals, and to generate integrated outputs;
• and
• an analog to digital converter configured to operate at a second operating frequency and generate a digital signal based on samples of the integrated outputs of the plurality of integrators, wherein the second operating frequency is lower than the first operating frequency, wherein the digital signal comprises a second sample frequency that is lower than the first sample frequency, wherein the second sample frequency is equal to the first sample frequency divided by a number of samples accumulated by an integrator of the plurality of integrators prior to resetting the integrator,
• wherein the plurality of integrators and the analog to digital converter are configured to operate at the second operating frequency, wherein each of the plurality of integrators comprises a notch filter, wherein a notch frequency of the notch filter is a function of the second sample frequency divided by a number of output channels associated with the analog to digital converter, and wherein the number of output channels is at least two.