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ADA4938-2ACPZ-R2 数据表(PDF) 5 Page - Analog Devices |
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ADA4938-2ACPZ-R2 数据表(HTML) 5 Page - Analog Devices |
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5 / 26 page  Data Sheet ADA4938-1/ADA4938-2 Rev. B | Page 5 of 26 SINGLE-SUPPLY OPERATION TA = 25°C, +VS = 5 V, −VS = 0 V, VOCM = +VS/2, RT = 61.9 Ω, RG = RF = 200 Ω, G = +1, RL,dm = 1 kΩ, unless otherwise noted. All specifications refer to single-ended input and differential output, unless otherwise noted. For gains other than G = 1, values for RF and RG are shown in Table 11. ±DIN to ±OUT Performance Table 3. Parameter Conditions Min Typ Max Unit DYNAMIC PERFORMANCE −3 dB Small Signal Bandwidth VOUT = 0.1 V p-p 1000 MHz Bandwidth for 0.1 dB Flatness VOUT = 2 V p-p 150 MHz Large Signal Bandwidth VOUT = 2 V p-p 750 MHz Slew Rate VOUT = 2 V p-p 3900 V/µs Settling Time VOUT = 2 V p-p 6.5 ns Overdrive Recovery Time VIN = 2.5 V to 0 V step, G = +2 4 ns NOISE/HARMONIC PERFORMANCE Second Harmonic VOUT = 2 V p-p, 10 MHz −110 dBc VOUT = 2 V p-p, 50 MHz −79 dBc Third Harmonic VOUT = 2 V p-p, 10 MHz −100 dBc VOUT = 2 V p-p, 50 MHz −79 dBc Input Voltage Noise f = 10 MHz 2.6 nV/√Hz Noise Figure G = +4, f = 10 MHz 15.8 dB Input Current Noise f = 10 MHz 4.8 pA/√Hz Crosstalk (ADA4938-2) f = 100 MHz −85 dB INPUT CHARACTERISTICS Offset Voltage VOS, dm = VOUT, dm/2; VDIN+ = VDIN− = VOCM = 2.5 V 1 4 mV TMIN to TMAX variation ±4 µV/°C Input Bias Current −18 −13 µA TMIN to TMAX variation −0.01 µA/°C Input Resistance Differential 6 MΩ Common mode 3 MΩ Input Capacitance 1 pF Input Common-Mode Voltage −VS + 0.3 to +VS − 1.6 V CMRR ∆VOUT, dm/∆VIN, cm; ∆VIN, cm = ±1 V −80 dB OUTPUT CHARACTERISTICS Output Voltage Swing Maximum ∆VOUT; single-ended output −VS + 1.2 to +VS − 1.2 V Linear Output Current Per amplifier, RL, dm = 20 Ω, f = 10 MHz ±65 mA Output Balance Error ∆VOUT, cm/∆VOUT, dm; ∆VOUT, dm = 1 V −60 dB |
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