Circuit Device And Electronic Apparatus

A circuit device comprising:

• a voltage divider circuit that is provided between a measurement target voltage node and a ground node, divides and outputs a measurement target voltage that is a voltage of the measurement target voltage node to a voltage division node;
• a comparison circuit that compares a voltage of the voltage division node with a reference voltage;
• and
• a control circuit, wherein
• the voltage divider circuit includes a first resistor to an n-th resistor provided in series between the measurement target voltage node and the voltage division node, n being an integer of 3 or more, and a first transistor to an n-th transistor that are controlled to be turned on or off by control data from the control circuit with an i-th transistor coupled in parallel to an i-th resistor of the first resistor to the n-th resistor, i being an integer from 1 to n,
• the control circuit sets a j-th transistor to one of on and off and sets the first transistor to the (j−1)-th transistor to the other of on and off, determines the control data by determining the j-th transistor is on or off based on a comparison result of the comparison circuit, j being an integer from 2 to n, and outputs measurement data of the measurement target voltage based on the determined control data.