Data SheetADA4857-1/ADA4857-2ParameterTest Conditions/CommentsMinTypMaxUnit PD (POWER-DOWN) PIN PD Input Voltage Chip powered down ≥ (+VS − 2) V Chip powered down, TMIN to TMAX ≥ (+VS − 1.4) V Chip enabled ≤ (+VS − 4.2) V Chip enabled, TMIN to TMAX ≤ (+VS − 4.8) V Turn-Off Time 50% off PD to <10% of final VOUT, VIN = 38 µs 1 V, G = 2 Turn-On Time 50% off PD to <10% of final VOUT, VIN = 30 ns 1 V, G = 2 PD Pin Leakage Current Chip enable 8 µA Chip powered down 30 µA INPUT CHARACTERISTICS Input Resistance Common mode 8 MΩ Differential mode 4 MΩ Input Capacitance Common mode 2 pF Input Common-Mode Voltage Range 1 to 4 V Common-Mode Rejection Ratio VCM = 2 V to 3 V −76 −84 dB VCM = 1.3 V to 3.7 V, TMIN to TMAX −70 dB OUTPUT CHARACTERISTICS Overdrive Recovery Time G = 2 15 ns Output Voltage Swing High RL = 1 kΩ +VS − 1 V RL = 1 kΩ, TMIN to TMAX +VS − 1.3 V RL = 100 Ω +VS – 1.1 V RL = 100 Ω, TMIN to TMAX +VS – 1.7 V Low RL = 1 kΩ −VS + 1 V RL = 1 kΩ, TMIN to TMAX −VS + 1.3 V RL = 100 Ω −VS + 1.1 V RL = 100 Ω, TMIN to TMAX −VS + 1.6 V Output Current 50 mA Short-Circuit Current Sinking and sourcing 75 mA Capacitive Load Drive 30% overshoot, G = 2 10 pF POWER SUPPLY Operating Range 4.5 10.5 V Quiescent Current 4.5 5 mA Quiescent Current (Power Down) PD ≥ VCC − 2 V 250 350 µA Positive Power Supply Rejection +VS = 4.5 V to 5.5 V, −VS = 0 V −58 −62 dB Negative Power Supply Rejection +VS = 5 V, −VS = −0.5 V to +0.5 V −65 −68 dB Rev. D | Page 5 of 21 Document Outline FEATURES APPLICATIONS CONNECTION DIAGRAMS GENERAL DESCRIPTION REVISION HISTORY SPECIFICATIONS ±5 V SUPPLY +5 V SUPPLY ABSOLUTE MAXIMUM RATINGS THERMAL RESISTANCE MAXIMUM POWER DISSIPATION ESD CAUTION PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS TEST CIRCUITS APPLICATIONS INFORMATION POWER-DOWN OPERATION CAPACITIVE LOAD CONSIDERATIONS RECOMMENDED VALUES FOR VARIOUS GAINS ACTIVE LOW-PASS FILTER (LPF) NOISE CIRCUIT CONSIDERATIONS PCB LAYOUT POWER SUPPLY BYPASSING GROUNDING OUTLINE DIMENSIONS ORDERING GUIDE
