SBAA449B October 2020 – October 2021 TMAG5110 , TMAG5110-Q1 , TMAG5111 , TMAG5111-Q1
Figure 3-20 shows in-plane placement. Instead of using two separate devices to detect quadrature, we have a single 2D sensor coplanar to the magnet.
The radial component of the magnetic field is about the same amplitude here as it was beneath the magnet with a smaller air gap. When placed with a 3.25 mm spacing between the sensor and the magnet face we notice that the peak amplitudes between the two relevant components are quite similar, and there is no z-component.