Temperature Sensor IC Design for Intracranial Monitoring Device
نویسندگان
چکیده
A precision CMOS chopping amplifier is adopted in this work to improve a CMOS temperature sensor high sensitive enough for intracranial temperature monitoring. An amplified temperature sensitivity of 18.8 ± 3*0.2 mV/C is attained over the temperature range from 20 C to 80 C from a given 10 samples of the same wafer. The analog frontend design outputs the temperature dependent and the temperature independent signals which can be directly interfaced to a 10 bit ADC to accomplish an accurate temperature instrumentation system. Keywords—Chopping; analog frontend; CMOS temperature sensor; traumatic brain injury (TBI); intracranial temperature monitoring.
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