Data SheetAD8233OUTLINE DIMENSIONS2.080 2.040BOTTOM VIEW2.000(BALL SIDE UP)54321ABALL A1IDENTIFIER1.7451.20BREF1.705 1.6650.40BSCCD0.252TOP VIEWREF(BALL SIDE DOWN)0.260.18 REFREF1.60 REF0.3300.5600.3000.500SIDE VIEW0.2700.440COPLANARITY 0.04SEATING0.3000.230PLANE0.2600.200A0.2200.1702015--00331510-G K P12- Figure 81. 20-Ball, Backside-Coated, Wafer Level Chip Scale Package [WLCSP] (CB-20-13) Dimensions shown in millimeters 2.0800.82190.63190.46780.27290.6300.391950.150.181050.0453520191816B16A17B17A10.758150.49060.5571420.27970.0281.7450.17641330.26120.06280.3590540.4751120.5754550.75811678910TOP VIEWSIDE VIEW(CIRCUIT SIDE)0.059 × 0.0590.098450.12795A0.3560.515950.742352018-0.925524-09- Figure 82. 20-Pad Bare Die [CHIP] (C-20-3) Dimensions shown in millimeters Rev. D | Page 31 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