The BMA7124 and BMA7126 are automotive lithium-ion battery cell controllers (BCCs) integrated circuits (ICs) supporting 24 and 26 cells, respectively, with high-accuracy analog-to-digital controllers (ADCs) on each voltage channel. This family of products offer the BMA742x variants with a discrete fourier transform (DFT) engine for electrochemical impedance spectroscopy (EIS). All the devices share pin compatibility and a shared software platform to enable a cost-effective EIS upgrade path. These consume only 4 mA (typ.) and support ASIL D functional safety.