SLUAB06 January 2025 AMC131M02 , AMC3330 , ISO7731
2.2 Dual Switch Floating Sampling Topology
Use topo2-dual switch, sampling ADC located on the low voltage side with isolated operational amplifier for high-voltage sampling and insulation monitoring. Withstand voltage or isolation requirements of the device as follows:
Figure 2-8 Dual Switch topo, Sampling GND Float(topo2)
Figure 2-10 Topo2-Communication and PE②4380V
Figure 2-12 Topo2-HV and communication④4380V
Figure 2-9 Topo2-HV(BAT+/BAT-) and PE①5880V
Figure 2-11 Topo2-HV and LV(MCU)③4380V
Figure 2-13 Topo2-LV and Communication⑤4380V