THS4509_14 Datasheet, PDF (18/43 Pages) Texas Instruments – WIDEBAND, LOW-NOISE, LOW-DISTORTION, FULLY-DIFFERENTIAL AMPLIFIER

THS4509
SLOS454H – JANUARY 2005 – REVISED NOVEMBER 2009
www.ti.com
TYPICAL CHARACTERISTICS: V_S+ – V_S– = 3 V
Test conditions at V_S+ = +1.5 V, V_S– = –1.5 V, CM = open, V_OD = 1 V_PP, R_F = 349 Ω, R_L = 200-Ω differential, G = 10 dB,
single-ended input, and input and output referenced to midrail, unless otherwise noted.
SMALL-SIGNAL FREQUENCY RESPONSE
22
20
G = 20 dB
18
V_OD = 100 mV_PP
16
G = 14 dB
14
12
G = 10 dB
10
8
G = 6 dB
6
4
2
0
0.1
1
10
100
1000 10000
f - Frequency - MHz
Figure 44.
LARGE-SIGNAL FREQUENCY RESPONSE
22
20
18 ^{G = 20 dB}
V_OD = 1 V_PP
16 _{G = 14 dB}
14
12 _{G = 10 dB}
10
8
G = 6 dB
6
4
2
0
0.1
1
10
100
1000 10000
f− Frequency − MHz
Figure 45.
HD₂ vs FREQUENCY
-40
G = 6 dB,
-50 ^VOD ^{= 1 V}PP
-60
-70
-80
-90
-100
R_L = 100 W
R_L = 200 W
R_L = 1 kW
-110
-120
1
R_L = 500 W
10
100
f - Frequency - MHz
Figure 46.
1000
HD₃ vs FREQUENCY
G = 6 dB,
−40
V_OD = 1 V_PP
−50
−60
−70
R_L = 100 W
−80 R_L = 200 W
−90
−100
1
R_L = 1 kW
R_L = 500 W
10
100
f − Frequency − MHz
Figure 47.
1000
HD₂ vs FREQUENCY
−40
G = 10 dB,
−50
V_OD = 1 V_PP
−60
−70
−80
R _L = 200Ω
−90
−100
−110
−120
1
R _L = 1 kΩ
R _{L = 500 Ω}
10
100
f − Frequency − MHz
Figure 48.
1000
HD₃ vs FREQUENCY
−40
G = 10 dB,
−50 ^{COD = 1 VPP}
−60
−70
−80 R_L = 500 W
R_L = 1 kW
−90
−100
1
R_L = 200 W
10
100
f − Frequency − MHz
Figure 49.
1000
18
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