A 2-dimensional acoustic sensor with programmable directivity is proposed. The sensor is formed by the combination of two orthogonal detectors of acoustic particle velocity. Differently from previous versions, the proposed device is fabricated using a…
This paper presents an original low-voltage CMOS, bipolar transistor free, sub-threshold voltage reference capable of operating with sub-1V supply voltages. Novel aspects of the proposed solution are (i) use of a bandgap core with a…