| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a pseudo-differential accelerometer resistant to electromagnetic interference.SOLUTION: The pseudo-differential accelerometer resistant to EMI is disclosed that includes a device provided with a sensor core connected to an integrated circuit including a chopper, a differential amplifier, and a dummy core. The chopper exchanges input to output connections during different states. The dummy core is coupled to a dummy chopper input. Three bond wires coupling the sensor output to a sensor chopper input, a first chopper output to a first sensor input, and a second chopper output to a second sensor input can connect the sensor and integrated circuit. The device can include a dummy pad and a dummy bond wire connecting the dummy pad to the dummy chopper input. This configuration requires four bond wires connecting the sensor and integrated circuit. A neutralization core can be connected to the sensor chopper input. The chopper can change the state to smear noise across a wide range or remove noise from a band of interest.</p> |
