Abstract: A sensor device is provided, including: a physical quantity sensor for detecting a physical quantity; and a processing circuit for generating and outputting a second signal including first data that are included in a first signal input from outside and second data that indicate a detection result of the physical quantity sensor. The first signal and the second signal have a plurality of messages, respectively; each message has two or more fast data slots and slow data slots; the first signal and the second signal are signals with predetermined data divided and stored in the slow data slots of two or more of the messages; and the processing circuit stores the first data and the second data in two of the fast data slots of the second signal.

Abstract: A semiconductor physical quantity sensor device having a power source terminal for receiving a power source potential, a ground terminal for receiving a ground potential, and an output terminal. The semiconductor physical quantity sensor includes a sensor configured to generate a signal, an amplifier configured to amplify the signal, and to output the amplified signal through the output terminal, a first resistor electrically connected between the power source terminal and the amplifier, a second resistor electrically connected between the output terminal and the ground terminal, and a filter electrically connected between the power source terminal and the sensor, and including a third resistor and a capacitor.

Abstract: A semiconductor physical quantity sensor device having a power source terminal for receiving a power source potential, a ground terminal for receiving a ground potential, and an output terminal. The semiconductor physical quantity sensor includes a sensor configured to generate a signal, an amplifier configured to amplify the signal, and to output the amplified signal through the output terminal, a first resistor electrically connected between the power source terminal and the amplifier, a second resistor electrically connected between the output terminal and the ground terminal, and a filter electrically connected between the power source terminal and the sensor, and including a third resistor and a capacitor.

Abstract: A semiconductor device 3 for sensing a physical quantity adjusts the output characteristic of a pressure sensor, for example, based on trimming data stored in an EPROM 34. A comparator 311 compares an input voltage given to a terminal 43 and a predetermined reference voltage, and delivers a write control signal for EPROM 34. When the comparator 311 delivers a Low signal for the EPROM 34, a first gate circuit 312 provided between the terminal 43 and a temperature sensor 32 connects the terminal 43 and the temperature sensor 32. A second gate circuit 313 provided between the terminal 43 and a pull-down resistor 314 disconnects the terminal 43 and the pull-down resistor 314. The operational voltage of the temperature sensor 32 is lower than the reference voltage, and the terminal 43 is used as an output terminal for the temperature sensor 32.

Abstract: A semiconductor device 3 for sensing a physical quantity adjusts the output characteristic of a pressure sensor, for example, based on trimming data stored in an EPROM 34. A comparator 311 compares an input voltage given to a terminal 43 and a predetermined reference voltage, and delivers a write control signal for EPROM 34. When the comparator 311 delivers a Low signal for the EPROM 34, a first gate circuit 312 provided between the terminal 43 and a temperature sensor 32 connects the terminal 43 and the temperature sensor 32. A second gate circuit 313 provided between the terminal 43 and a pull-down resistor 314 disconnects the terminal 43 and the pull-down resistor 314. The operational voltage of the temperature sensor 32 is lower than the reference voltage, and the terminal 43 is used as an output terminal for the temperature sensor 32.