Datasheet

ADA4841-1/ADA4841-2
Rev. E | Page 5 of 20
T
A
= 25°C, V
S
= 3 V, R
L
= 1 kΩ, Gain =+1, V
CM
= 1.5 V, unless otherwise noted.
Table 3.
Parameter Conditions Min Typ Max Unit
DYNAMIC PERFORMANCE
−3 dB Bandwidth V
O
= 0.02 V p-p 52 80 MHz
Slew Rate G = +1, V
O
= 2 V step, R
L
= 1 kΩ 10 12 V/μs
Settling Time to 0.1% G = +1, V
O
= 1 V step 120 ns
Settling Time to 0.01% G = +1, V
O
= 1 V step 250 ns
NOISE/HARMONIC PERFORMANCE
Harmonic Distortion HD2/HD3 f
C
= 100 kHz, V
O
= 1 V p-p −97/−100 dBc
f
C
= 1 MHz, V
O
= 1 V p-p −79/−80 dBc
Input Voltage Noise f = 100 kHz 2.1 nV/√Hz
Input Current Noise f = 100 kHz 1.4 pA/√Hz
DC PERFORMANCE
Input Offset Voltage 40 300 μV
Input Offset Voltage Drift 1 μV/°C
Input Bias Current 3 5.3 μA
Input Offset Current 0.1 0.5 μA
Open-Loop Gain V
O
= 0.5 V to 2.5 V 101 123 dB
INPUT CHARACTERISTICS
Input Resistance, Common Mode 90 MΩ
Input Resistance, Differential Mode 25 kΩ
Input Capacitance, Common Mode 1 pF
Input Capacitance, Differential Mode 3 pF
Input Common-Mode Voltage Range −0.1 +2 V
Common-Mode Rejection Ratio (CMRR) V
CM
= Δ 0.4 V 86 115 dB
MATCHING CHARACTERISTICS (ADA4841-2)
Input Offset Voltage 70 μV
Input Bias Current 60 nA
POWER DOWN PIN (ADA4841-1)
POWER DOWN Voltage
Enabled >1.6
POWER DOWN Voltage
Power down <1.2 V
Input Current
Enable
POWER DOWN
= 3 V
1 2 μA
Power Down
POWER DOWN
= 0 V
−10 −30 μA
Switching Speed
Enable 1 μs
Power Down 40 μs
OUTPUT CHARACTERISTICS
Output Voltage Swing G > +1 0.045 to 2.955 0.023 to 2.988 V
Output Current Limit Sourcing, V
IN
= +V
S
, R
L
= 50 Ω to V
CM
30 mA
Sinking, V
IN
= −V
S
, R
L
= 50 Ω to V
CM
60 mA
Capacitive Load Drive 30% overshoot 30 pF
POWER SUPPLY
Operating Range 2.7 12 V
Quiescent Current/Amplifier
POWER DOWN
= 3 V
1.1 1.3 mA
POWER DOWN
= 0 V
25 60 μA
Positive Power Supply Rejection Ratio +V
S
= +3 V to +4 V, −V
S
= 0 V 95 110 dB
Negative Power Supply Rejection Ratio +V
S
= +3 V, −V
S
= 0 V to −1 V 96 120 dB