OPA2830_08 Datasheet, PDF (20/41 Pages) Burr-Brown (TI) – Dual, Low-Power, Single-Supply, Wideband OPERATIONAL AMPLIFIER

OPA2830
SBOS309C – AUGUST 2004 – REVISED MARCH 2006
TYPICAL CHARACTERISTICS: V_S = +3V (continued)
At T_A = +25°C, G = +2V/V, and R_L = 150Ω to V_S/3, unless otherwise noted (see Figure 71).
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HARMONIC DISTORTION vs LOAD RESISTANCE
−50
−55
2nd−Harmonic
−60
G = +2V/V
V_O = 1V_PP
f = 5MHz
See Figure 71
−65
−70
−75
3rd−Harmonic
−80
−85
−90
100
1k
Resistance (Ω)
Figure 57.
HARMONIC DISTORTION vs OUTPUT VOLTAGE
−30
G = +2V/V
−40
R_L = 500Ω
f = 5MHz
See Figure 71
−50
Input Limited
−60
2nd−Harmonic
−70
3rd−Harmonic
−80
−90
0.1
1
10
Output Voltage Swing (V_PP)
Figure 58.
HARMONIC DISTORTION vs FREQUENCY
−55
−60 ^{G = +2V/V}
V_O = 1V_PP
−65 See Figure 71
2nd−Harmonic
R_L = 500Ω
−70
−75
−80
−85
−90
−95
−100
0.1
2nd−Harmonic
R_L = 150Ω
3rd−Harmonic
R_L = 150Ω
3rd−Harmonic
R_L = 500Ω
1
10
Frequency (MHz)
Figure 59.
TWO-TONE, 3RD-ORDER INTERMODULATION SPURIOUS
−40
−45 ^PI
−50
−55
−60
−65
1/2
50Ω O P A 2830
750Ω
750Ω
PO
500Ω
20MHz
−70
−75
10MHz
−80
−85
5MHz
−90
−95
−28 −26 −24 −22 −20 −18 −16 −14 −12 −10 −8
Single−Tone Load Power (dBm)
Figure 60.
RECOMMENDED R_S vs CAPACITIVE LOAD
190
< 0.5dB Peaking Targeted
170
150
130
110
90
70
50
30
10
1
10
100
1k
Capacitive Load (pF)
Figure 61.
FREQUENCY RESPONSE vs CAPACITIVE LOAD
8
7
C_L = 10pF
6
C_L = 100pF
5
4
C_L = 1000pF
3
2
1 V_I
0
−1
−2
−3
1
50Ω ^OPA2830
750Ω
RS
VO
CL 1kΩ(1)
750Ω ^{NOTE: (1) 1kΩ is optional.}
10
Frequency (MHz)
100 200
Figure 62.
20
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