THS3122 Datasheet, PDF (9/43 Pages) Texas Instruments – LOW-NOISE, HIGH-SPEED, 450 mA CURRENT FEEDBACK AMPLIFIERS

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Typical Characteristics (continued)
15
12
R_F = 200 Ω
9
6
R_F = 270 Ω
3
R_F = 390 Ω
0
−3
−6
−9
−12 ^{G = 4,}
−15
V_CC = ±5 V,
R_L = 50 Ω
−18
0.1
1
10
100
1000
f − Frequency − MHz
Figure 7. Small-Signal Closed-Loop Gain vs Frequency
15
12
R_F = 200 Ω
9
6
R_F = 470 Ω
3
0
R_F = 560 Ω
−3
−6
V_CC = ±5 V,
−9 _{RL = 50 Ω}
−12
0.1
1
10
100
f − Frequency − MHz
1000
Figure 9. Small-Signal Closed-Loop Gain vs Frequency
18
4 V_PP
12
G = 2, V_CC = ±5 V,
R_L = 680 Ω, R_L = 50 Ω
2 V_PP
6
1 V_PP
0
0.5 V_PP
−6
0.25 V_PP
−12
0.125 V_PP
−18
−24
0.1
1
10
100
f − Frequency − MHz
1000
Figure 11. Small- and Large-Signal Output vs Frequency
THS3122, THS3125
SLOS382E – SEPTEMBER 2001 – REVISED MAY 2015
15
12
R_F = 200 Ω
9
6
R_F = 270 Ω
3
R_F = 390 Ω
0
−3
−6
−9
−12 ^{G = 4,}
−15
V_CC = ±15 V,
R_L = 50 Ω
−18
0.1
1
10
100
1000
f − Frequency − MHz
Figure 8. Small-Signal Closed-Loop Gain vs Frequency
15
12
R_F = 200 Ω
9
6
R_F = 470 Ω
3
R_F = 560 Ω
0
−3
−6
V_CC = ±15 V,
−9 _{RL = 50 Ω}
−12
0.1
1
10
100
f − Frequency − MHz
1000
Figure 10. Small-Signal Closed-Loop Gain vs Frequency
18
4 V_PP
12
G = 2, V_CC = ±15 V,
R_L = 680 Ω,R_L = 50 Ω
2 V_PP
6
1 V_PP
0
0.5 V_PP
−6
0.25 V_PP
−12
0.125 V_PP
−18
−24
0.1
1
10
100
f − Frequency − MHz
1000
Figure 12. Small- and Large-Signal Output vs Frequency
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