Datasheet

Data Sheet ADA4850-1/ADA4850-2
Rev. C | Page 3 of 16
SPECIFICATIONS
SPECIFICATIONS WITH +3 V SUPPLY
T
A
= 25°C, R
F
= 0 Ω for G = +1, R
F
= 1 kΩ for G > +1, R
L
= 1 kΩ, unless otherwise noted.
Table 1.
Parameter Conditions Min Typ Max Unit
DYNAMIC PERFORMANCE
−3 dB Bandwidth G = +1, V
O
= 0.1 V p-p 160 MHz
G = +2, V
O
= 0.5 V p-p, R
L
= 150 Ω 45 MHz
Bandwidth for 0.1 dB Flatness G = +2, V
O
= 0.5 V p-p, R
L
= 150 Ω 14 MHz
Slew Rate G = +2, V
O
= 1 V step 110 V/µs
Settling Time to 0.1% G = +2, V
O
= 1 V step, R
L
= 150 Ω 80 ns
NOISE/DISTORTION PERFORMANCE
Harmonic Distortion (dBc) HD2/HD3 f
C
= 1 MHz, V
O
= 2 V p-p, G = +3, R
L
= 150 Ω −72/−77 dBc
Input Voltage Noise f = 100 kHz 10 nV/√Hz
Input Current Noise f = 100 kHz 2.5 pA/√Hz
Differential Gain G = +3, NTSC, R
L
= 150 Ω, V
O
= 2 V p-p 0.2 %
Differential Phase
G = +3, NTSC, R
L
= 150 Ω, V
O
= 2 V p-p
0.2
Degrees
DC PERFORMANCE
Input Offset Voltage
0.6
4.1
mV
Input Offset Voltage Drift 4 µV/°C
Input Bias Current 2.4 4.4 µA
Input Bias Current Drift 4 nA/°C
Input Bias Offset Current 30 nA
Open-Loop Gain V
O
= 0.25 V to 0.75 V 78 100 dB
INPUT CHARACTERISTICS
Input Resistance Differential/common-mode 0.5/5.0 MΩ
Input Capacitance 1.2 pF
Input Common-Mode Voltage Range
−0.2 to +0.8
V
Input Overdrive Recovery Time (Rise/Fall) V
IN
= +3.5 V to −0.5 V, G = +1 60/50 ns
Common-Mode Rejection Ratio V
CM
= 0.5 V −76 −108 dB
POWER-DOWN
Power-Down Input Voltage Power-down ADA4850-1/ADA4850-2 <0.7/<0.6 V
Enabled ADA4850-1/ADA4850-2 >0.8/>1.7 V
Turn-Off Time 0.7 µs
Turn-On Time 60 ns
Power-Down Bias Current/ Power Down Pin
Enabled Power-down = 3 V 37 55 µA
Power-Down Power-down = 0 V 0.01 0.2 µA
OUTPUT CHARACTERISTICS
Output Overdrive Recovery Time (Rise/Fall) V
IN
= +0.7 V to −0.1 V, G = +5 70/100 ns
Output Voltage Swing 0.06 to 2.83 0.03 to 2.92 V
Short-Circuit Current Sinking/sourcing 105/74 mA
POWER SUPPLY
Operating Range
1
2.7 6 V
Quiescent Current/Amplifier 2.4 2.8 mA
Quiescent Current (Power-Down)/Amplifier 15 150 nA
Positive Power Supply Rejection +V
S
= +3 V to +4 V, −V
S
= 0 V −83 −100 dB
Negative Power Supply Rejection +V
S
= +3 V, −V
S
= 0 V to –1 V −83 −102 dB
1
For operation on bipolar supplies, see the Operating the ADA4850-1/ADA4850-2 on Bipolar Supplies section.