Abstract: A current sense amplifier circuit of a circuit device includes: an operational amplifier; a first resistor provided between one end of a shunt resistor and a first node, a first switch provided between the first node and a first input node, a second resistor provided between another end of the shunt resistor and a second node, a second switch provided between the second node and a second input node, a third resistor provided between a constant voltage node and the third node, a third switch provided between the third node and the first input node, a fourth resistor provided between the constant voltage node and a fourth node, and a fourth switch provided between the fourth node and the second input node.

Abstract: A circuit device includes a control circuit configured to control a transistor current based on a detected temperature. The detected temperature is a temperature detected by a temperature sensor circuit that detects a temperature of a transistor. The transistor charges a load to which a power supply voltage is supplied. The transistor current is a current flowing through the transistor during charging. The control circuit reduces the transistor current when the detected temperature is higher than a first threshold value, and increases the transistor current when the detected temperature is lower than a second threshold value lower than the first threshold value.

Abstract: A circuit device includes a control circuit configured to control a transistor current based on a detected temperature. The detected temperature is a temperature detected by a temperature sensor circuit that detects a temperature of a transistor. The transistor charges a load to which a power supply voltage is supplied. The transistor current is a current flowing through the transistor during charging. The control circuit reduces the transistor current when the detected temperature is higher than a first threshold value, and increases the transistor current when the detected temperature is lower than a second threshold value lower than the first threshold value.

Abstract: A current sense amplifier circuit of a circuit device includes: an operational amplifier; a first resistor provided between one end of a shunt resistor and a first node, a first switch provided between the first node and a first input node, a second resistor provided between another end of the shunt resistor and a second node, a second switch provided between the second node and a second input node, a third resistor provided between a constant voltage node and the third node, a third switch provided between the third node and the first input node, a fourth resistor provided between the constant voltage node and a fourth node, and a fourth switch provided between the fourth node and the second input node.

Abstract: An integrated circuit device includes a heating element, and a control circuit configured to control flow of a current through the heating element. An outer shape of the integrated circuit device has a first side and a second side intersecting the first side. An outer shape of the heating element has a short side and a long side. A distance between the long side of the heating element and the first side of the integrated circuit device is larger than a distance between the short side of the heating element and the second side of the integrated circuit device.

Abstract: An integrated circuit device includes a heating element, and a temperature sensor configured to detect a temperature of the heating element. An outer shape of the integrated circuit device has a first side and a second side intersecting the first side, and when a direction along the first side of the integrated circuit device is set as an X direction and a direction along the second side is set as a Y direction, the heating element includes a first heating element, and a second heating element arranged adjacent to the first heating element along the Y direction with a region AR interposed therebetween. The temperature sensor is arranged at an arrangement position where a position in the X direction is a position between a center of the region AR and the second side, and a position in the Y direction is a position between the first heating element and the second heating element.

Abstract: A circuit device includes a control circuit configured to control a transistor current based on a detected temperature. The detected temperature is a temperature detected by a temperature sensor circuit that detects a temperature of a transistor. The transistor charges a load to which a power supply voltage is supplied. The transistor current is a current flowing through the transistor during charging. The control circuit reduces the transistor current when the detected temperature is higher than a first threshold value, and increases the transistor current when the detected temperature is lower than a second threshold value lower than the first threshold value.

Abstract: An oscillation circuit is configured to include a voltage generating unit that includes a booster circuit operating in response to the supply of a pulse signal, and boosts an input reference voltage to generate a bias voltage and outputs the bias voltage to a vibrator; a clock pulse signal generating unit that generates and outputs a clock pulse signal; and a switch unit that switches its state between a first state in which the pulse signal to be input to the booster circuit is set to the clock pulse signal and a second state in which the pulse signal is set to a signal oscillated from the vibrator.

Abstract: An electric circuit includes: a reference signal generation circuit that generates a reference signal based on a first oscillation signal that is an oscillation signal of a first oscillation circuit that vibrates a first vibrator; and a counter circuit that counts a second oscillation signal that is an oscillation signal of a second oscillation circuit that vibrates a second vibrator based on the reference signal, and outputs a count signal, wherein the count signal is a change of the count value in the second oscillation signal.

Abstract: An input-output interface circuit of the present invention includes an input-output terminal, an input buffer, a first MOS transistor of a first conductivity type formed in a floating well region, an output buffer for outputting a signal externally through the input-output terminal, an electrostatic protection circuit, and a floating well potential adjusting circuit, wherein the electrostatic protection circuit has a first resistance, and a diode connected between another end of the first resistance and a high level power supply potential, and the floating well potential adjusting circuit has a second resistance having one end connected to the input-output terminal, and a second MOS transistor of the first conductivity type having one end connected to another end of the second resistance, another end connected to the floating well region, and a gate connected to the high level power supply potential.

Abstract: An integrated circuit device includes: an internal circuit; a ground terminal; a first terminal that is provided with a first signal that becomes to be a ground level during at least a portion of a period in which the internal circuit is operating; a detection circuit that compares a voltage on the first terminal and a voltage on the ground terminal, thereby detecting an open state of the ground terminal; and a setting circuit that sets the internal circuit to a reset state or a disabled state when the open state of the ground terminal is detected by the detection circuit.

Abstract: An electric circuit includes: a reference signal generation circuit that generates a reference signal based on a first oscillation signal that is an oscillation signal of a first oscillation circuit that vibrates a first vibrator; and a counter circuit that counts a second oscillation signal that is an oscillation signal of a second oscillation circuit that vibrates a second vibrator based on the reference signal, and outputs a count signal, wherein the count signal is a change of the count value in the second oscillation signal.

Abstract: An input-output interface circuit of the present invention includes an input-output terminal, an input buffer, a first MOS transistor of a first conductivity type formed in a floating well region, an output buffer for outputting a signal externally through the input-output terminal, an electrostatic protection circuit, and a floating well potential adjusting circuit, wherein the electrostatic protection circuit has a first resistance, and a diode connected between another end of the first resistance and a high level power supply potential, and the floating well potential adjusting circuit has a second resistance having one end connected to the input-output terminal, and a second MOS transistor of the first conductivity type having one end connected to another end of the second resistance, another end connected to the floating well region, and a gate connected to the high level power supply potential.

Abstract: An integrated circuit device includes: an internal circuit; a ground terminal; a first terminal that is provided with a first signal that becomes to be a ground level during at least a portion of a period in which the internal circuit is operating; a detection circuit that compares a voltage on the first terminal and a voltage on the ground terminal, thereby detecting an open state of the ground terminal; and a setting circuit that sets the internal circuit to a reset state or a disabled state when the open state of the ground terminal is detected by the detection circuit.

Abstract: An oscillation device, includes: an oscillator circuit that generates an oscillation signal based on a direct current voltage to be inputted, the oscillation signal being provided with a specification requested by a supplied device that is supposed to receive a supply of the oscillation signal; a gate circuit provided in the subsequent stage of the oscillator circuit and capable of outputting the oscillation signal from the oscillator circuit towards the supplied device; a power supply monitor circuit for detecting that the direct current voltage to be inputted has reached a voltage at which the oscillator circuit is able to start to generate the oscillation signal; and a delay circuit that causes the gate circuit to output to the supplied device the oscillation signal from the oscillator circuit, when a time required for the state of the oscillation signal, which the oscillator circuit generates, to become substantially constant is clocked on the basis of a time when a notice of the detection is received fro

Abstract: A receiver circuit includes an attenuator that receives a received signal and attenuates the received signal, a DC level shifter that shifts a DC level of an attenuated signal from the attenuator, an amplifier section that has frequency characteristics of a band-pass filter and amplifies a signal from the DC level shifter that has been shifted with respect to the DC level, and a control circuit that controls an attenuation of the attenuator based on a signal output from the amplifier section. The control circuit controls the attenuation of the attenuator by changing filter characteristics of the attenuator corresponding to an amplitude of the signal output from the amplifier section so that the signal output from the amplifier section has a constant amplitude even when an amplitude of the received signal has changed.

Abstract: An oscillation device, includes: an oscillator circuit that generates an oscillation signal based on a direct current voltage to be inputted, the oscillation signal being provided with a specification requested by a supplied device that is supposed to receive a supply of the oscillation signal; a gate circuit provided in the subsequent stage of the oscillator circuit and capable of outputting the oscillation signal from the oscillator circuit towards the supplied device; a power supply monitor circuit for detecting that the direct current voltage to be inputted has reached a voltage at which the oscillator circuit is able to start to generate the oscillation signal; and a delay circuit that causes the gate circuit to output to the supplied device the oscillation signal from the oscillator circuit, when a time required for the state of the oscillation signal, which the oscillator circuit generates, to become substantially constant is clocked on the basis of a time when a notice of the detection is received fro

Abstract: An oscillating circuit includes an oscillating element having a first terminal and a second terminal, a plurality of inverting amplifiers connected in series between the first terminal and the second terminal of the oscillating element, and an impedance element connected between an input terminal and an output terminal of a predetermined inverting amplifier among the plurality of inverting amplifiers.

Abstract: An oscillating circuit includes an oscillating element having a first terminal and a second terminal, a plurality of inverting amplifiers connected in series between the first terminal and the second terminal of the oscillating element, and an impedance element connected between an input terminal and an output terminal of a predetermined inverting amplifier among the plurality of inverting amplifiers.