Analog Devices provides complete system solutions for battery monitoring in 12V lead acid automotive applications. These devices integrate all of the required features to precisely and intelligently determine battery state of charge and state of health. Minimizing external system components, these devices are powered directly from the 12 V battery. These products also feature ARM7 integrated microcontrollers. These are used to both preprocess the acquired battery variables and to manage communications to the main electronic control unit (ECU) via a local interconnect network (LIN) interface that is also integrated on chip.