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THS4504 Datasheet, PDF (10/45 Pages) National Semiconductor (TI) – WIDEBAND, LOW-DISTORTION, FULLY DIFFERENTIAL AMPLIFIERS | |||
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THS4504
THS4505
SLOS363D â AUGUST 2002 â REVISED MAY 2008 ......................................................................................................................................................... www.ti.com
TYPICAL CHARACTERISTICS: ±5 V
SMALL-SIGNAL UNITY-GAIN
FREQUENCY
1
0.5
0
â0.5
â1
â1.5
â2
â2.5
â3
â3.5
â4
Gain = 1
RL = 800 â¦
Rf = 499 â¦
PIN = â20 dBm
VS = ±5 V
0.1
1
10
100
f â Frequency â MHz
1000
Figure 1.
LARGE-SIGNAL FREQUENCY
RESPONSE
25
Gain = 10, Rf = 1.8 kâ¦
20
RL = 800 â¦
VO = 2 VPP
VS = ±5 V
15 Gain = 5, Rf = 1.8 kâ¦
10
Gain = 2, Rf = 1.8 kâ¦
5
Gain = 1, Rf = 499 â¦
0
â5
0.1
1
10
100
f â Frequency â MHz
Figure 4.
1000
HARMONIC DISTORTION
vs
OUTPUT VOLTAGE SWING
0
â10
Single Input to
Differential Output
â20 Gain = 1
â30
RL = 800 â¦
Rf = 499 â¦
â40 f= 30 MHz
â50 VS = ±5 V
â60
â70
HD2
â80
â90
HD3
â100
0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5
VO â Output Voltage Swing â V
Figure 7.
SMALL-SIGNAL FREQUENCY
RESPONSE
22
Gain = 10
20
18
16
Gain = 5
14
12
10
8 Gain = 2
6
4 RL = 800 â¦
2
Rf =499 â¦
PIN = â20 dBm
0 VS = ±5 V
â2
0.1
1
10
100
1000
f â Frequency â MHz
Figure 2.
HARMONIC DISTORTION
vs
FREQUENCY
0
â10 Single-Ended Input to
Differential Output
â20 Gain = 1
â30
RL = 800 â¦
Rf = 499 â¦
â40 VO = 2 VPP
â50 VS = ±5 V
â60
â70
HD2
â80
â90
â100
0.1
HD3
1
10
100
f â Frequency â MHz
Figure 5.
HARMONIC DISTORTION
vs
LOAD RESISTANCE
0
Single-Ended Input to
â10
Differential Output
Gain = 1
â20
VO = 2 VPP
â30
Rf = 499 â¦
â40
VS = ±5 V
â50
HD3, 30 MHz
HD2, 30 MHz
â60
â70
HD2, 8 MHz
â80
â90
HD3, 8 MHz
â100
0
400
800
1200
RL â Load Resistance â â¦
Figure 8.
1600
0.1-dB GAIN FLATNESS
FREQUENCY RESPONSE
0.05
0
Rf = 499 â¦
â0.05
â0.1
â0.15
â0.2
â0.25
Gain = 1
RL = 800 â¦
PIN = â20 dBm
VS = ±5 V
â0.3
1
10
100
f â Frequency â MHz
Figure 3.
1000
HARMONIC DISTORTION
vs
OUTPUT VOLTAGE SWING
0
â10
Single-Ended Input to
Differential Output
â20 Gain = 1
â30
RL = 800 â¦
Rf = 499 â¦
â40 f= 8 MHz
â50 VS = ±5 V
â60
â70
HD2
â80
â90
HD3
â100
0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5
VO â Output Voltage Swing â V
Figure 6.
THIRD-ORDER INTERMODULATION
DISTORTION
vs
FREQUENCY
â30
Single-Ended Input to
Differential Output
â40
Gain = 1
â50 RL = 800 â¦
Rf = 499 â¦
â60 VS = ±5 V
VO = 2 VPP
â70
â80
â90
â100
10
VO = 1 VPP
200 kHz Tone Spacing
100
f â Frequency â MHz
Figure 9.
10
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Product Folder Link(s): THS4504 THS4505
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