OPA2830 Datasheet, PDF (14/43 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 (continued)
At T_A = +25°C, G = +2V/V, R_F = 750Ω, R_L = 150Ω to V_S/2, and input V_CM = 2.5V, unless otherwise noted (see Figure 70).
HARMONIC DISTORTION vs LOAD RESISTANCE
−50
−55
2nd−Harmonic
−60
−65
−70
3rd−Harmonic
−75
−80 ^{G = +2V/V}
V_O = 2V_PP
−85 f = 5MHz
See Figure 70
−90
100
1k
Load Resistance (Ω )
Figure 29.
HARMONIC DISTORTION vs OUTPUT VOLTAGE
−45
−50
−55
G = +2V/V
R_L = 500Ω
f = 5MHz
Input Limited
−60 See Figure 70
−65
2nd−Harmonic
−70
−75
−80
−85
−90
3rd−Harmonic
−95
−100
0.1
1
10
Output Voltage Swing (V_PP)
Figure 31.
HARMONIC DISTORTION vs INVERTING GAIN
−55
−60
2nd−Harmonic
−65
−70
−75
3rd−Harmonic
−80
−85
1
Gain ( V/V )
Figure 33.
R_L = 500Ω
V_O = 2V_PP
f = 5MHz
10
HARMONIC DISTORTION vs FREQUENCY
−45
−50
G = +2V/V
V_O = 2V_PP
−55 _{See Figure 70}
−60
−65
−70
−75
−80
−85
−90
−95
−100
2nd−Harmonic
R_L = 150Ω
2nd−Harmonic
R_L = 500Ω
3rd−Harmonic
R_L = 500Ω
3rd−Harmonic
R_L = 150Ω
0.1
1
10
Frequency (MHz)
Figure 30.
HARMONIC DISTORTION vs NONINVERTING GAIN
−55
−60
2nd−Harmonic
−65
−70
−75
−80
−85
−90
1
3rd−Harmonic
Gain (V/V)
Figure 32.
R_L = 500Ω
V_O = 2V_PP
f = 5MHz
See Figure 70
10
TWO-TONE, 3RD-ORDER INTERMODULATION SPURIOUS
−45
−50 ^PI
−55
1 /2
50Ω OP A28 30
750Ω
P_O
500Ω
20MHz
−60
750Ω
−65
−70
10MHz
−75
−80
5MHz
−85
−90
−95
−26 −24 −22 −20 −18 −16 −14 −12 −10 −8 −6 −4 −2
Single−Tone Load Power (dBm)
Figure 34.
14
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