MAX30001G Integrated Biopotential/Bioimpedance AFE Analog Devices MAX30001G Integrated Biopotential and Bioimpedance AFE is a complete, biopotential, and bioimpedance (BioZ) analog front-end (AFE) solution for wearable applications. It offers high performance for clinical and fitness applications, with ultra-low power for extended battery life. The MAX30001G is a single biopotential channel providing electrocardiogram (ECG) waveforms, heart rate, and a single bioimpedance channel capable of measuring respiration.