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System for reducing noise in a chemical sensor array

  • US 9,985,624 B2
  • Filed: 02/22/2016
  • Issued: 05/29/2018
  • Est. Priority Date: 05/29/2012
  • Status: Active Grant
First Claim
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1. A system comprising:

  • a power supply;

    a clock circuitry operably coupled to the power supply, the clock circuitry configured to generate a plurality of clock signals, each clock signal of the plurality of clock signals being synchronous with a primary clock signal and each clock signal having a cycle that spans multiple cycles of the primary clock signal; and

    a plurality of switchers operably coupled to receive the plurality of clock signals, wherein the plurality of switchers comprises;

    a first set of switchers having a low power draw, anda second set of switchers having a high power draw,wherein the clock circuitry is further configured to;

    supply a first group of the plurality of clock signals to the first set of switchers;

    offset each clock signal in the first group from each other by a first number of cycles of the primary clock signal;

    supply a second group of the plurality of clock signals to the second set of switchers; and

    offset each clock signal in the second group from each other by a second number of cycles of the primary clock signal,wherein the second number of cycles of the primary clock signal for the offset of each clock signal in the second group is larger than the first number of cycles of the primary clock signal for the offset of each clock signal in the first group.

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