Single-Lead, Heart Rate Monitor Front End Features: Fully integrated single-lead ECG front end Low supply current: 170 μA (typical) Common-mode rejection ratio: 80 dB (dc to 60 Hz) Two or three electrode configurations High signal gain (G = 100) with dc blocking capabilities 2-pole adjustable high-pass filter Accepts up to ±300 mV of half cell potential Fast restore feature improves filter settling Uncommitted op amp 3-pole adjustable low-pass filter with adjustable gain Leads off detection: ac or dc options Integrated right leg drive (RLD) amplifier Single-supply operation: 2.0 V to 3.5 V Integrated reference buffer generates virtual ground Rail-to-rail output Internal RFI filter 8 kV HBM ESD rating Shutdown pin 20-lead 4 mm × 4 mm LFCSP package Qualified for automotive applications
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