Datasheet AD8233 (Analog Devices) - 5

Data Sheet AD8233 Parameter Symbol Test Conditions/Comments Min Typ Max Unit
LOGIC INTERFACE Input Characteristics Input Voltage (AC/DC, FR, and RLD SDN) Low VIL 0.41 × +VS V High VIH 0.45 × +VS V Input Voltage (SDN) Low VIL 0.6 × + VS V High VIH 0.3 × + VS V Output Characteristics LOD terminal Output Voltage RL = 100 kΩ Low VOL 0.05 V High VOH +VS − 0.05 V SYSTEM SPECIFICATIONS Quiescent Supply Current 50 70 µA TA = 0°C to 70°C 60 µA Wakeup Current SDN = low, LOD = low 0.65 1.5 µA TA = 0°C to 70°C 0.75 µA Shutdown Current SDN = low, LOD = high 0.5 1 µA TA = 0°C to 70°C 0.6 µA Peak-to-Peak Voltage Noise (RTI) VDIFF = 0 V f = 0.5 Hz to 40 Hz 9 µV p-p f = 0.05 Hz to 150 Hz 15 µV p-p VDIFF = ±0.3 V f = 0.5 Hz to 40 Hz 11 µV p-p f = 0.05 Hz to 150 Hz 21 µV p-p Supply Range 1.7 3.5 V Specified Temperature Range 0 70 °C Operational Temperature Range −40 +85 °C 1 Offset is referred to the input of the instrumentation amplifier inputs. 2 In ac leads off and shutdown mode, the dc leads off comparator at the +IN pin trips the LOD pin. Rev. D | Page 5 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