Application circuit diagram of dual-axis magnetic field sensor

The application circuit of the dual-axis magnetic field sensor is shown in the figure. Using a dual-axis magnetic field sensor HM C1002 and two AMP04 (A1, A2), the magnetic field in the X-axis direction and Y-axis direction can be measured simultaneously. The two voltage signals output by HMC1002 are amplified by A1 and A2 respectively, then connected to the analog input terminal and reference terminal of the 12-bit A/D converter TLC2543, and then connected to μP through the interface circuit. MAX662A is a high-efficiency DC/DC converter that can boost the +5V power supply to +10V as the power supply for the driver IRF7105. The input signal of the driver comes from μP, and the output pulse current is sent to the S/R+ terminal (pin 16) of HM C1002. C3 in the picture should use a tantalum capacitor.