OPA2889 Datasheet, PDF (15/38 Pages) Burr-Brown (TI) – Dual, Low-Power, Wideband, Voltage Feedback OPERATIONAL AMPLIFIER with Disable

OPA2889
www.ti.com ....................................................................................................................................................... SBOS373B – JUNE 2007 – REVISED AUGUST 2008
TYPICAL CHARACTERISTICS: V_S = +5V, Differential
At T_A = +25°C, Differential Gain = +2V/V, and R_L = 200Ω, unless otherwise noted. See Figure 52.
DIFFERENTIAL SMALL-SIGNAL FREQUENCY RESPONSE
6
3
0
-3
G_D = +5V/V
-6
G_D = +1V/V
R_F = 0W
G_D = +2V/V
-9
-12 R_F = 750W
R_L = 200W
-15
1
G_D = +10V/V
10
Frequency (MHz)
Figure 45.
100 200
DIFFERENTIAL LARGE-SIGNAL FREQUENCY RESPONSE
9
6
V_O = 1V_PP
R_F = 750W
R_L = 200W
G_D = +2V/V
3
V_O = 4V_PP
0
-3
-6
-9
0
10 20 30
40 50 60 70
Frequency (MHz)
Figure 46.
80 90 100 110
DIFFERENTIAL DISTORTION vs LOAD RESISTANCE
-60
V_O = 4V_PP
f = 1MHz
-65 G_D = +2V/V
-70
3rd Harmonic
-75
-80
2nd Harmonic
-85
100
1k
Load Resistance (W)
Figure 47.
DIFFERENTIAL DISTORTION vs FREQUENCY
-30
R_L = 200W
-40 V_O = 4V_PP
-50 ^{GD = +2V/V}
3rd Harmonic
-60
-70
-80
2nd Harmonic
-90
-100
-110
0.1
1
10
Frequency (MHz)
Figure 48.
DIFFERENTIAL DISTORTION vs OUTPUT VOLTAGE
-60
R_L = 400W
-65 f = 1MHz
-70 ^{GD = +2V/V}
3rd Harmonic
-75
-80
-85
2nd Harmonic
-90
-95
-100
0.1
1
10
Output Voltage (V_PP)
Figure 49.
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