Other Parts Discussed in Thread: DRV425, DRV401, DRV421, DRV5013, DRV5055-Q1
I need a solution to measure a static magnetic field up to 15mT. The challenge is to find a solution with a very low drift on the gain sensitivity. We are aiming for < 0.3% full scale long term gain drift (> 3 years). A Fluxgate technology would probably fit, but the DRV425 can only measure up to 2 mT. Is there a application note or can you give me some guidelines in solving this with the DRV411 and an external fluxgate coil? It needs to be very compact. Temperature stability will be solved in software and offset drift is not crucial by the way for our application.
Martijn de Boer