Integrating a HV measurement design – putting the voltage divider, switch, and buffer in a single package – resolves pitfalls of the discrete design.

An integrated design reduces the footprint significantly since creepage and clearance requirements are met without the need for multiple, spaced out resistors. This provides more flexibility on the PCB, reduces costs associated with space, and accommodates scaling trends. Removing the need for multiple discrete components also simplifies the BOM and makes this easier to add more HV measurement units to a system.

Placing all components in a single package also removes exposed nodes associated with the discrete design. This practically eliminates contamination and the effects on accuracy as a concern. The potential for leakage and inductive or capacitive parasitics minimized and the components are protected from external conditions such as humidity.

Some external factors, like temperature, can be less impactful to the precision of the measurement since gradients concentrated over a smaller area can demonstrate less variation from resistor to resistor. Precise resistor ratios are more important to voltage divider accuracy than precise resistor values, so such effects are negligible compared to the discrete design.