Analyte Monitoring Device and Methods
First Claim
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1. An analyte monitoring device, comprising:
- an analyte sensor having a plurality of sensor electrodes, the analyte sensor having at least a portion in fluid contact with interstitial fluid under a skin layer; and
sensor electronics coupled to the sensor electrodes of the analyte sensor and in signal communication with the analyte sensor, the sensor electronics including analog front end circuitry and programmed, or including programmable logic, to process signals generated by the analyte sensor and received by the analog front end circuitry, the signals generated by the analyte sensor corresponding to a monitored analyte level in the interstitial fluid;
wherein the analog front end circuitry of the sensor electronics includes a single offset for calibration of the sensor electronics, and furtherwherein the analog front end circuitry of the sensor electronics are referenced to a reference potential.
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Abstract
Methods and devices for providing application specific integrated circuit architecture for a two electrode analyte sensor or a three electrode analyte sensor are provided. Systems and kits employing the same are also provided.
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Citations
20 Claims
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1. An analyte monitoring device, comprising:
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an analyte sensor having a plurality of sensor electrodes, the analyte sensor having at least a portion in fluid contact with interstitial fluid under a skin layer; and sensor electronics coupled to the sensor electrodes of the analyte sensor and in signal communication with the analyte sensor, the sensor electronics including analog front end circuitry and programmed, or including programmable logic, to process signals generated by the analyte sensor and received by the analog front end circuitry, the signals generated by the analyte sensor corresponding to a monitored analyte level in the interstitial fluid; wherein the analog front end circuitry of the sensor electronics includes a single offset for calibration of the sensor electronics, and further wherein the analog front end circuitry of the sensor electronics are referenced to a reference potential. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method, comprising:
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positioning at least a portion of an analyte sensor in fluid contact with interstitial fluid under a skin layer, the analyte sensor having a plurality of sensor electrodes; coupling sensor electronics to the sensor electrodes of the analyte sensor, wherein the sensor electronics are in signal communication with the analyte sensor, the sensor electronics including analog front end circuitry; and processing, using the sensor electronics, signals generated by the analyte sensor and received by the analog front end circuitry, the signals generated by the analyte sensor corresponding to a monitored analyte level in the interstitial fluid; wherein the analog front end circuitry of the sensor electronics includes a single offset for calibration of the sensor electronics, and further wherein the analog front end circuitry of the sensor electronics are referenced to a reference potential. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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Specification