OPA4830IPW Datasheet, PDF (17/45 Pages) Texas Instruments – Quad, Low-Power, Single-Supply, Wideband Operational Amplifier

OPA4830
www.ti.com.................................................................................................................................................... SBOS350A – DECEMBER 2006 – REVISED MAY 2008
TYPICAL CHARACTERISTICS: V_S = +5V, Differential Configuration
At T_A = +25°C, R_F = 604Ω, and R_L = 500Ω differential (as shown in Figure 47), unless otherwise noted.
+5V
1.2kW _2.5V
1.2kW
1/4
0.1mF OPA4830
R_G
604W
V_I
R_G
604W
R_L V_O
G_D
=
604W
R_G
2.5V
1/4
OPA4830
Figure 47.
DIFFERENTIAL LARGE-SIGNAL FREQUENCY RESPONSE
9
6
V_O = 3V_PP
3
V_O = 2V_PP
0
-3
-6 _{GD = 2}
R_L = 500W
-9
1
V_O = 1V_PP
V_O = 0.2V_PP
10
Frequency (MHz)
Figure 49.
100 200
DIFFERENTIAL DISTORTION vs FREQUENCY
-30
G_D = 2
-40 ^VO ^{= 4V}PP
R_L = 500W
-50
3rd-Harmonic
-60
-70
2nd-Harmonic
-80
-90
-100
-110
1
10
100
Frequency (MHz)
Figure 51.
DIFFERENTIAL SMALL-SIGNAL FREQUENCY RESPONSE
3
G_D = 1
0
G_D = 2
-3
-6
-9
-12 _{VO = 200mVPP}
R_L = 500W
-15
1
G_D = 5
G_D = 10
10
Frequency (MHz)
Figure 48.
100 200
DIFFERENTIAL DISTORTION vs LOAD RESISTANCE
-40
-45
-50
3rd-Harmonic
-55
-60 G_D = 2
-65
V_O = 4V_PP
f = 5MHz
-70
-75
-80
-85
2nd-Harmonic
-90
100 150 200 250 300 350 400 450 500
Resistance (W)
Figure 50.
DIFFERENTIAL DISTORTION vs OUTPUT VOLTAGE
-55 _{GD = 2}
-60 R_L = 500W
f = 5MHz
-65
3rd-Harmonic
-70
-75
-80
-85
2nd-Harmonic
-90
-95
-100
1
10
Output Voltage Swing (V_PP)
Figure 52.
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