THS3120_16 Datasheet, PDF (13/35 Pages) Texas Instruments – LOW-NOISE, HIGH-OUTPUT DRIVE, CURRENT-FEEDBACK OPERATIONAL AMPLIFIERS

THS3120
THS3121
www.ti.com........................................................................................................................................ SLOS420E – SEPTEMBER 2003 – REVISED OCTOBER 2009
TYPICAL CHARACTERISTICS (±5 V)
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NONINVERTING SMALL-SIGNAL
FREQUENCY RESPONSE
24
22 _{G = 10, RF = 301 Ω}
20
18
16
G = 5, R_F = 499 Ω
14
12
10
8
G = 2, R_F = 750 Ω
6
4
2
G = 1, R_F = 909 Ω
0
−2
−4
1M
10 M
R_L = 50 Ω,
V_O = 0.2 V_PP,
V_S = ±5 V
100 M
1G
f − Frequency − Hz
INVERTING SMALL-SIGNAL
FREQUENCY RESPONSE
24
22 _{G = -10, RF = 365 Ω}
20
18
R_L = 50 Ω,
V_O = 0.2 V_PP,
V_S = ±5 V
16
G = -5, R_F = 499 Ω
14
12
10
8
G = -2, R_F = 681 Ω
6
4
2
G = -1, R_F = 750 Ω
0
-2
-4
1M
10 M
100 M
1G
f - Frequency - Hz
Figure 32.
Figure 33.
0.1-dB FLATNESS
6.3
Gain = 2,
6.2 ^{RF = 750 Ω,}
R_L = 50 Ω,
V_O = 0.2 V_PP,
6.1 V_S = ±5 V
6
5.9
5.8
5.7
1M
10 M
f - Frequency - Hz
Figure 34.
100 M
SLEW RATE
vs
OUTPUT VOLTAGE STEP
700
Gain = 1
600
R_L = 50 Ω
R_F = 909 Ω
V_S = ±5 V
500
Rise
Fall
400
300
200
100
0
0
1
2
3
4
5
V_O − Output Voltage −V_PP
Figure 35.
SLEW RATE
vs
OUTPUT VOLTAGE STEP
700
Rise
600
500
Fall
400
300
200
100
0
0
Gain = 2
R_L = 50 Ω
R_F = 750 Ω
V_S = ±5 V
1 2 3 4 5 67
V_O − Output Voltage −V_PP
Figure 36.
2nd HARMONIC DISTORTION
vs
FREQUENCY
-30
-40
G = -5, R_F = 499 Ω
-50
-60
-70
-80
-90
-100
100 k
G = -2, R_F = 649 Ω
V_O = 2 V_PP,
R_L = 100 Ω,
V_S = ±5 V
1M
10 M
f - Frequency - Hz
100 M
Figure 37.
3rd HARMONIC DISTORTION
vs
FREQUENCY
-30
V_O = 2 V_PP,
-40 ^{RL = 100 Ω,}
V_S = ±5 V
-50
G = -5, R_F = 499 Ω
-60
-70
-80
-90
-100
100 k
G = -2, R_F = 649 Ω
1M
10 M
f - Frequency - Hz
Figure 38.
100 M
HARMONIC DISTORTION
vs
OUTPUT VOLTAGE SWING
-70
HD3, R_L = 50Ω
HD3, R_L = 50Ω
-75
-80
HD2, R_L = 499Ω
-85
HD3, R_L = 499Ω
-90
Gain = 2,
R_F = 649 Ω
-95
f= 1 MHz
V_S = ±5 V
-100
0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5
V_O - Output Voltage Swing - V_PP
Figure 39.
HARMONIC DISTORTION
vs
OUTPUT VOLTAGE SWING
-40
HD3, R_L = 50Ω
HD3, R_L = 50Ω
-50
-60
-70
HD2, R_L = 499Ω
Gain = 2,
-80
HD3, R_L = 499Ω
R_F = 649 Ω
f= 8 MHz
V_S = ±5 V
-90
0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5
V_O - Output Voltage Swing - V_PP
Figure 40.
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