OPA4830 Datasheet, PDF (12/45 Pages) National Semiconductor (TI) – Quad, Low-Power, Single-Supply, Wideband Operational Amplifier

OPA4830
SBOS350A – DECEMBER 2006 – REVISED MAY 2008.................................................................................................................................................... www.ti.com
TYPICAL CHARACTERISTICS: V_S = ±5V, Differential Configuration
At T_A = +25°C, R_F = 604Ω (as shown in Figure 18), and R_L = 500Ω, unless otherwise noted.
+5V
1/4
20W ^OPA4830
G_D
=
604W
R_G
R_G
V_{I RG}
604W
604W
R_L
500W
V_O
1/4
OPA4830
20W
-5V
Figure 18.
DIFFERENTIAL LARGE-SIGNAL FREQUENCY RESPONSE
9
6
V_O = 5V_PP
3
0
-3
-6 _{GD = 2}
R_L = 500W
-9
1
V_O = 2V_PP
V_O = 1V_PP
V_O = 200mV_PP
10
Frequency (MHz)
Figure 20.
100 200
DIFFERENTIAL DISTORTION vs FREQUENCY
-40
G_D = 2
-50 V_O = 4V_PP
R_L = 500W
-60
3rd-Harmonic
-70
-80
-90
-100
-110
0.1
2nd-Harmonic
1
10
100
Frequency (MHz)
Figure 22.
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 19.
100 200
DIFFERENTIAL DISTORTION vs LOAD RESISTANCE
-45
-50
-55
-60
-65 ^{GD = 2}
-70
V_O = 4V_PP
f = 5MHz
-75
3rd-Harmonic
-80
-85
-90
2nd-Harmonic
-95
-100
100 150 200 250 300 350 400 450 500
Resistance (W)
Figure 21.
DIFFERENTIAL DISTORTION vs OUTPUT VOLTAGE
-55
-60
G_D = 2
R_L = 500W
-65 f = 5MHz
-70
3rd-Harmonic
-75
-80
-85
2nd-Harmonic
-90
-95
-100
-105
1
10
Output Voltage Swing (V_PP)
Figure 23.
12
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