| 摘要 |
PROBLEM TO BE SOLVED: To provide an IC for a sensor, sensor device, electronic apparatus for estimating an off-set bias on the basis of a component included in a digital signal obtained by AD-converting an angular velocity signal.SOLUTION: An IC 20 for a sensor includes: a detection unit 30 for detecting an angular velocity signal on the basis of a signal from a sensor element 10; an AD conversion unit 50 for analog-digital-converting a signal from the detection unit; and a DC component detection unit 80 for detecting a DC component from the digital signal output by the AD converter in a predetermined period. The IC 20 for the sensor further can include a correction unit 90 for correcting the digital signal on the basis of the DC component. The DC component detection unit can include: a low-pass filter circuit for switching a cutoff frequency for low band passing from a first frequency to a second frequency lower than the first frequency; and a gain correction unit for correcting the gain whenever the cutoff frequency is switched. |
