Description

5-Channel ECG AFE with Respiration, Pacemaker, Lead-Off, and Lead Quality Detection Features: AFE for ECG measurement 5 ECG acquisition channels and 1 driven reference Flexible front-end arrangement allows right arm electrode or WCT referenced Dedicated per channel Σ-Δ ADC 50 mV typical calibration signal for gain correction Digital 50 Hz or 60 Hz mains power line filtering Flexible pacemaker detection capability Digital detection algorithm on selectable 3 of 5 ECG channels Programmable threshold levels Dedicated high sample rate SAR ADCs Lead-off or lead fail detection DC lead-off detection on ECG and RLD_OUT Programmable polarity, current, and threshold levels AC lead quality measurement Programmable polarity current Reference electrode drive Flexible redirection to other electrodes if RLD lead failure Respiration measurement using impedance pneumography High precision voltage references Shield drive amplifier Parallel ICs for larger lead count configurations Communication SPI 8 user programmable GPIOs Power Low power architecture Single channel ECG power: 3.04 mW 3 channel ECG power: 4.95 mW 5 channel ECG power: 7.64 mW Operates from 2 or 3 voltage rails: 5 V, 1.8 V, or 1.2 V POR Packages and temperature range Operating temperature range: −10°C to +85°C Package: 65-ball, 5.6 mm × 6.2 mm WLCSP Supports medical standards: IEC 60601-2-25 Ed. 2.0 2011, IEC 60601-2-27 Ed. 3.0 2011, and IEC 60601-2-47 Ed. 2.0 2012