ADX922 Datasheet | AnalogySemi

ADX920/ADX921/ADX922/ADX923 Low-Power, 2-Channel, 24-Bit Analog Front-End for Biopotential Measurements 1. Features - Three low-noise (ADX923) PGAs and two highresolution ADCs (ADX922/3) - Input-referred noise: 8.6μVPP (G = 6) - Input bias current: 100pA - Data rate: 125SPS to 8kSPS - CMRR: 117dB; THD: - 107dB - Programmable gain: 1, 2, 3, 4, 6, 8, or 12 - Supplies: unipolar or bipolar Analog: 2.7V to 5.5V Digital: 1.65V to 3.6V - Built-in right leg drive amplifier, lead-off detection, test signals - Integrated respiration impedance measurement (ADX922/3) - Electrode Rotation mode (ERM) to implement time-division multiplexing LEAD-I, LEAD-II, and LEAD-III measurements (ADX923) - Integrated...