OPA2830 Datasheet, PDF (12/43 Pages) National Semiconductor (TI) – Dual, Low-Power, Single-Supply, Wideband OPERATIONAL AMPLIFIER

OPA2830
SBOS309D – AUGUST 2004 – REVISED AUGUST 2008.................................................................................................................................................. www.ti.com
TYPICAL CHARACTERISTICS: V_S = ±5V, Differential Configuration
At T_A = +25°C, R_F = 604Ω (as shown in Figure 17), and R_L = 500Ω, unless otherwise noted.
+5V
1/2
20Ω ^OPA2830
R_G
604Ω
V_{I RG}
604Ω
R_L
500Ω
V_O
1/2
OPA 283 0
20Ω
−5V
G_D
=
604Ω
R_G
Figure 17.
DIFFERENTIAL LARGE-SIGNAL FREQUENCY RESPONSE
9
6
V_O = 5V_PP
3
0
−3
−6 _{GD = 2}
R_L = 500Ω
−9
1
V_O = 2V_PP
V_O = 1V_PP
V_O = 200mV_PP
10
Frequency (MHz)
Figure 19.
100 200
DIFFERENTIAL DISTORTION vs FREQUENCY
−40
G_D = 2
−50 V_O = 4V_PP
R_L = 500Ω
−60
3rd−Harmonic
−70
−80
−90
−100
−110
0.1
2nd−Harmonic
1
10
100
Frequency (MHz)
Figure 21.
DIFFERENTIAL SMALL-SIGNAL FREQUENCY RESPONSE
3
G_D = 1
0
G_D = 2
−3
−6
−9
−12 _{VO = 200mVPP}
R_L = 500Ω
−15
1
G_D = 5
G_D = 10
10
Frequency (MHz)
100 200
Figure 18.
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 (Ω)
Figure 20.
DIFFERENTIAL DISTORTION vs OUTPUT VOLTAGE
−55
−60
G_D = 2
R_L = 500Ω
−65 f = 5MHz
−70
3rd−Harmonic
−75
−80
−85
2nd−Harmonic
−90
−95
−100
−105
1
10
Output Voltage Swing (V_PP)
Figure 22.
12
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