THS4271 Datasheet, PDF (14/38 Pages) Texas Instruments – LOW NOISE, HIGH SLEW RATE, UNITY GAIN STABLE VOLTAGE FREEBACK AMPLIFIER

THS4271
THS4275
SLOS397E − JULY 2002 − REVISED JANUARY 2004
TYPICAL CHARACTERISTICS (5 V GRAPHS)
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SMALL SIGNAL UNITY GAIN
FREQUENCY RESPONSE
3
Gain = 1
2 _{RL = 150 Ω}
VO = 100 mVPP
1 _{VS = 5 V}
0
−1
−2
−3
−4
100 k
1 M 10 M 100 M 1 G
f − Frequency − Hz
Figure 39
10 G
SMALL SIGNAL FREQUENCY RESPONSE
22
20
18 ^{Gain = 10}
16
Gain = 5
14
12 ^{RL = 499 Ω}
10 ^{Rf = 249 Ω}
8
VO = 100 mVPP
VS = 5 V
6
4 ^{Gain = 2}
2
0
−2 ^{Gain = −1}
−4
100 k
1M
10 M
100 M 1G
f − Frequency − Hz
Figure 40
0.1 dB GAIN FLATNESS
FREQUENCY RESPONSE
0.2
0.1
0
−0.1
−0.2
−0.3
−0.4
−0.5
−0.6
−0.7
−0.8
−0.9
Gain = 1
RL = 150 Ω
VO = 100 mVPP
VS = 5 V
−1
100 k
1M
10 M
100 M
1G
f − Frequency − Hz
Figure 41
LARGE SIGNAL FREQUENCY RESPONSE
22
Gain = 10
20
18
16
Gain = 5
14
12 RL = 499 Ω
10 ^{Rf = 249 Ω}
VO = 1 VPP
8 _{VS = 5 V}
6
4 ^{Gain = 2}
2
0
100 k
1M
10 M 100 M
1G
f − Frequency − Hz
Figure 42
HARMONIC DISTORTION
vs
FREQUENCY
0
−10 ^{Gain = 1}
−20
VO = 2 VPP
RL = 150 Ω
−30 ^{VS = 5 V}
−40
−50
HD3
−60
−70
HD2
−80
−90
−100
1
10
100
f − Frequency − MHz
1000
900
800
700
SLEW RATE
vs
OUTPUT VOLTAGE
Gain = 1
RL = 499 Ω
Rf = 249 Ω
Fall
VS = 5 V
600
Rise
500
400
300
200
100
0
0
0.5
1
1.5
2
2.5
VO − Output Voltage −V
Figure 43
HARMONIC DISTORTION
vs
FREQUENCY
−50
Gain = 2
−60 ^{Rf = 249 Ω}
RL = 249 Ω
VO = 1 VPP
−70 ^{VS = 5 V}
−80
HD3
−90
HD2
−100
1
10
100
f − Frequency − MHz
HARMONIC DISTORTION
vs
FREQUENCY
−50
Gain = 1
VO = 1 VPP
−60 RL = 150 Ω
VS = 5 V
−70
−80
HD3
−90
HD2
−100
1
10
100
f − Frequency − MHz
Figure 44
HARMONIC DISTORTION
vs
FREQUENCY
0
−10 ^{Gain = 2}
Rf = 249 Ω
−20 RL = 150 Ω
−30 ^{VO = 2 VPP}
VS = 5 V
−40
−50
HD2
−60
−70
HD3
−80
−90
−100
1
10
100
f − Frequency − MHz
Figure 45
Figure 46
Figure 47
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