50 μA, 2 mm × 1.7 mm WLCSP, Low Noise, Heart Rate Monitor for Wearable Products
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32 /10 — AD8233. Data Sheet. 4.0. 3.5. IOS. 3.0. ) (p. ) (n. 2.5. I OS. I B. 2.0. …
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AD8233. Data Sheet. 4.0. 3.5. IOS. 3.0. ) (p. ) (n. 2.5. I OS. I B. 2.0. 1.5. CURRE. 1.0. S F. 0.5. O UT. INP. –0.5. 400µs/DIV. 0.5V/DIV. –10. –1.0. –20. –40. 100
AD8233Data Sheet4.080IB3.5IOS70))A3.060A) (p) (n2.550I OSI B((NTNT2.0401.530CURRECURRET1.0EAS20S FBIF0.510UTO UTINP00INP–0.5400µs/DIV0.5V/DIV–10 015 13737- –1.0–20–40–20020406080100 018 TEMPERATURE (°C) 13737- Figure 15. Large Signal Pulse Response Figure 18. Input Bias Current (IB) and Input Offset Current (IOS) vs. Temperature 1.50.50.41.0)0.3VG (0.20.5WIN%)S0.1R (GE0RRO0OLTAN E–0.1AIT V–0.5UG–0.2TPOU–0.3–1.0–40°C +25°C +85°C–0.4–1.5–0.51001k10k100k1M 016 –40–20020406080100 019 LOAD (Ω) 13737- TEMPERATURE (°C) 13737- Figure 16. Output Voltage Swing vs. Load Figure 19. Gain Error vs. Temperature 0.41080.3) V m6T (0.2E40.1V)2T OFFSV/U P0(µ0RG INMR–2IN–0.1CK–4LOC–0.2B C–6D–0.3–8–0.4–10–40–20020406080100 017 –40–20020406080100 020 TEMPERATURE (°C) 13737- TEMPERATURE (°C) 13737- Figure 17. DC Blocking Input Offset Drift on Multiple Parts Figure 20. CMRR vs. Temperature Rev. D | Page 10 of 32 Document Outline FEATURES APPLICATIONS GENERAL DESCRIPTION FUNCTIONAL BLOCK DIAGRAM TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS THERMAL RESISTANCE ESD CAUTION PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS INSTRUMENTATION AMPLIFIER PERFORMANCE CHARACTERISTICS OPERATIONAL AMPLIFIER PERFORMANCE CHARACTERISTICS RLD AMPLIFIER PERFORMANCE CHARACTERISTICS REFERENCE BUFFER PERFORMANCE CHARACTERISTICS SYSTEM PERFORMANCE CHARACTERISTICS THEORY OF OPERATION ARCHITECTURE OVERVIEW INSTRUMENTATION AMPLIFIER OPERATIONAL AMPLIFIER RLD AMPLIFIER REFERENCE BUFFER FAST RESTORE CIRCUIT LEADS ON OR OFF DETECTION DC Leads On or Off Detection AC Leads On or Off Detection STANDBY OPERATION INPUT PROTECTION RADIO FREQUENCY INTERFERENCE POWER SUPPLY REGULATION AND BYPASSING INPUT REFERRED OFFSETS LAYOUT RECOMMENDATIONS APPLICATION INFORMATION ELIMINATING ELECTRODE OFFSETS HIGH-PASS FILTERING Two-Pole High-Pass Filter Additional High-Pass Filtering Options LOW-PASS FILTERING AND GAIN Driving ADCs DRIVEN ELECTRODE MEASURING SURFACE ELECTROMYOGRAPHY (EMG) OR ELECTROENCEPHALOGRAPHY (EEG) APPLICATION CIRCUITS Heart Rate Measurement (HRM) Next to the Heart Exercise Application, HRM at the Hands Holter Monitor Configuration Portable Heart Rate and Activity Monitor System Synchronous ECG and Photoplethysmography (PPG) Measurement Using Transimpedance Amplifier (TIA) ADC Mode Using the ADPD1080 USING AD5940, AD8232, AND AD8233 FOR BIOIMPEDANCE AND ELECTROCARDIOGRAM (ECG) MEASUREMENTS DIE INFORMATION OUTLINE DIMENSIONS ORDERING GUIDE