A 400μW Differential FBAR Sensor Interface IC with digital readout
نویسندگان
چکیده
A low-power sensor interface IC suitable for a differential frequency measurement application is demonstrated. The circuit is used in a FBAR sensor system which includes a sensor and a reference FBAR. The sensor signal is processed and a digital output representing the sensor input is transmitted using a two wire serial interface. The architecture is entirely digital and benefits from scaling to advanced nodes. The IC is implemented in a 130nm CMOS process and consumes 400μW from a 0.75V supply.
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تاریخ انتشار 2015