ADA4661-2Data SheetParameterSymbolTest Conditions/CommentsMinTypMaxUnit EMI Rejection Ratio of +IN x EMIRR VIN = 100 mV peak (200 mV p-p) f = 400 MHz 34 dB f = 900 MHz 42 dB f = 1800 MHz 50 dB f = 2400 MHz 60 dB NOISE PERFORMANCE Total Harmonic Distortion Plus Noise THD + N AV = 1, VIN = 0.44 V rms at 1 kHz Bandwidth = 80 kHz 0.002 % Bandwidth = 500 kHz 0.003 % Peak-to-Peak Noise en p-p f = 0.1 Hz to 10 Hz 3 µV p-p Voltage Noise Density en f = 1 kHz 18 nV/√Hz f = 10 kHz 14 nV/√Hz Current Noise Density in f = 1 kHz 360 fA/√Hz Rev. 0 | Page 8 of 32 Document Outline Features Applications General Description Pin Connection Diagrams Revision History Specifications Electrical Characteristics—18 V Operation Electrical Characteristics—10 V Operation Electrical Characteristics—3.0 V Operation Absolute Maximum Ratings Thermal Resistance ESD Caution Pin Configurations and Function Descriptions Typical Performance Characteristics Applications Information Input Stage Gain Stage Output Stage Maximum Power Dissipation Rail-to-Rail Input and Output Comparator Operation EMI Rejection Ratio Current Shunt Monitor Active Filters Capacitive Load Drive Noise Considerations with High Impedance Sources Outline Dimensions Ordering Guide