Data Sheet
ADA4891-1/ADA4891-2/ADA4891-3/ADA4891-4
Rev. E | Page 3 of 24
SPECIFICATIONS
5 V OPERATION
TA = 25°C, VS = 5 V, RL = 1 k to 2.5 V, unless otherwise noted. All specifications are for the ADA4891-1, ADA4891-2, ADA4891-3, and
ADA4891-4, unless otherwise noted. For the ADA4891-1 and ADA4891-2, RF = 604 Ω; for the ADA4891-3 and ADA4891-4, RF = 453 Ω,
unless otherwise noted.
Table 1.
Parameter
Test Conditions/Comments
Min
Typ
Max
Unit
DYNAMIC PERFORMANCE
3 dB Small-Signal Bandwidth
ADA4891-1/ADA4891-2, G = +1, VO = 0.2 V p-p
240
MHz
ADA4891-3/ADA4891-4, G = +1, VO = 0.2 V p-p
220
MHz
ADA4891-1/ADA4891-2, G = +2, VO = 0.2 V p-p,
RL = 150 to 2.5 V
90
MHz
ADA4891-3/ADA4891-4, G = +2, VO = 0.2 V p-p,
RL = 150 to 2.5 V
96
MHz
Bandwidth for 0.1 dB Gain Flatness
ADA4891-1/ADA4891-2, G = +2, VO = 2 V p-p,
RL = 150 to 2.5 V, RF = 604
25
MHz
ADA4891-3/ADA4891-4, G = +2, VO = 2 V p-p,
RL = 150 to 2.5 V, RF = 374
25
MHz
Slew Rate, tR/tF
G = +2, VO = 2 V step, 10% to 90%
170/210
V/s
3 dB Large-Signal Frequency Response
G = +2, VO = 2 V p-p, RL = 150
40
MHz
Settling Time to 0.1%
G = +2, VO = 2 V step
28
ns
NOISE/DISTORTION PERFORMANCE
Harmonic Distortion, HD2/HD3
fC = 1 MHz, VO = 2 V p-p, G = +1
79/93
dBc
fC = 1 MHz, VO = 2 V p-p, G = 1
75/91
dBc
Input Voltage Noise
f = 1 MHz
9
nV/√Hz
Differential Gain Error (NTSC)
G = +2, RL = 150 to 2.5 V
0.05
%
Differential Phase Error (NTSC)
G = +2, RL = 150 to 2.5 V
0.25
Degrees
All-Hostile Crosstalk
f = 5 MHz, G = +2, VO = 2 V p-p
80
dB
DC PERFORMANCE
Input Offset Voltage
±2.5
±10
mV
ADA4891-1W/ADA4891-2W/ADA4891-4W only,
TMIN to TMAX
±3.1
±16
mV
TMIN to TMAX
±3.1
mV
Offset Drift
6
V/°C
Input Bias Current
50
+2
+50
pA
ADA4891-1W/ADA4891-2W/ADA4891-4W only,
TMIN to TMAX
50
+50
nA
Open-Loop Gain
RL = 1 k to 2.5 V
77
83
dB
ADA4891-1W/ADA4891-2W/ADA4891-4W only,
TMIN to TMAX, RL = 1 k to 2.5 V
66
dB
RL = 150 to 2.5 V
71
dB
INPUT CHARACTERISTICS
Input Resistance
5
G
Input Capacitance
3.2
pF
Input Common-Mode Voltage Range
VS 0.3 to
+VS 0.8
V
Common-Mode Rejection Ratio (CMRR)
VCM = 0 V to 3.0 V
88
dB
OUTPUT CHARACTERISTICS
Output Voltage Swing
RL = 1 k to 2.5 V
0.01 to 4.98
V
RL = 150 to 2.5 V
0.08 to 4.90
V
Output Current
1% THD with 1 MHz, VO = 2 V p-p
125
mA