PHYSICAL QUANTITY DETECTION CIRCUIT, PHYSICAL QUANTITY DETECTION DEVICE, ELECTRONIC APPARATUS, AND MOVABLE BODY

摘要

PROBLEM TO BE SOLVED: To provide a physical quantity detection circuit capable of reducing such a risk that a device for receiving a detection signal executes erroneous processing.SOLUTION: A physical quantity detection circuit 200 includes: a detection circuit 30 to which a signal from a physical quantity detection element 100 is input and which outputs a detection signal VO; and an abnormality diagnosis circuit 40. The detection circuit 30 includes at least one amplifier circuit 35. The abnormality diagnosis circuit 40 includes a monitoring/determination circuit 41 for monitoring the magnitude of a signal input to a circuit located at a stage subsequent to the amplifier circuit 35.SELECTED DRAWING: Figure 6