OPA2889 Datasheet, PDF (12/38 Pages) Burr-Brown (TI) – Dual, Low-Power, Wideband, Voltage Feedback OPERATIONAL AMPLIFIER with Disable

OPA2889
SBOS373B – JUNE 2007 – REVISED AUGUST 2008 ....................................................................................................................................................... www.ti.com
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 and Figure 53.
DIFFERENTIAL SMALL-SIGNAL FREQUENCY RESPONSE
3
G_D = +1V/V
0
G_D = +2V/V
-3
-6
G_D = +5V/V
-9
G_D = +10V/V
-12
-15 ^RF ^{= 750W}
R_L = 200W
-18 ^{See Figure 53}
1
10
Frequency (MHz)
Figure 27.
100 200
DIFFERENTIAL DISTORTION vs LOAD RESISTANCE
-70
3rd Harmonic
-75
-80
2nd Harmonic
-85
-90 V_O = 4V_PP
f = 1MHZ
G_D = +2V/V
-95
100
Load Resistance (W)
Figure 29.
See Figure 53
1k
DIFFERENTIAL DISTORTION vs OUTPUT VOLTAGE
-60
R_L = 200W
-65
f = 1MHz
G_D = +2V/V
-70
3rd Harmonic
-75
-80
-85
2nd Harmonic
See Figure 53
-90
0.1
1
10
Output Voltage (V_PP)
Figure 31.
DIFFERENTIAL LARGE-SIGNAL FREQUENCY RESPONSE
9
6
3
0
14V_PP
-3
5V_PP and
-6 ^{RL = 200W}
G_D = +2V/V
8V_PP
See Figure 53
-9
0
20
40
60
80 100 120 140
Frequency (MHz)
Figure 28.
DIFFERENTIAL DISTORTION vs FREQUENCY
-30
V_O = 4V_PP
-40 R_L = 200W
-50 ^{GD = +2V/V}
3rd Harmonic
-60
-70
-80
2nd Harmonic
-90
-100
See Figure 53
-110
0.1
1
10
Frequency (MHz)
Figure 30.
DIFFERENTIAL DISTORTION vs FREQUENCY
-70
R_{L_DIFF} = 1kW
-80 ^GD ^{= -1V/V}
V_O = 4V_PP
-90
3rd Harmonic
-100
-110
-120
-130
See Figure 52
-140
1
2nd Harmonic
10
100
Frequency (kHz)
Figure 32.
1000
12
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