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THS4281 Datasheet, PDF (12/31 Pages) Texas Instruments – VERY LOW-POWER, HIGH-SPEED, RAIL-TO-RAIL INPUT AND OUTPUT VOLTAGE-FEEDBACK OPERATIONAL AMPLIFIER | |||
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THS4281
SLOS432 â APRIL 2004
TYPICAL CHARACTERISTICS (continued)
(VS = 5 V)
FREQUENCY RESPONSE
24
G = 10
20
VS = 5 V,
RF = 2 kâ¦,
RL = 1 kâ¦,
VO = 0.1 VPP
16
G=5
12
8
G=2
4
G = â1
0
â4
0.1
1
10
100
f â Frequency â MHz
Figure 19.
(VS = 2.7 V)
LARGE-SIGNAL
FREQUENCY RESPONSE
1
0.5
VO = 500 mVPP
0
â0.5
â1
â1.5 VO = 1 VPP
â2
â2.5 VO = 2 VPP
â3
â3.5
Gain = 1,
RF = 34 â¦,
RL = 1 kâ¦,
VS = 2.7 V
â4
1
10
100
f â Frequency â MHz
Figure 22.
110
100
90
80
70
60
50
40
30
20
10
0
â10
1
OPEN-LOOP GAIN
vs
FREQUENCY
50
RL = 1 kâ¦,
25
VS = ±5 V
0
Gain
â25
â50
Phase
â75
â100
â125
â150
â175
â200
â225
â250
10 100 1k 10k 100k 1 M 10 M 100 M
f â Frequency â Hz
Figure 25.
(VS = ±5 V)
FREQUENCY RESPONSE
24
G = 10
20
16
G=5
VS = ±5 V,
RF = 2.49 kâ¦,
RL = 1 kâ¦,
VO = 0.1 VPP
12
8
G=2
4
G = â1
0
â4
0.1
1
10
100
f â Frequency â MHz
Figure 20.
(VS = 5 V)
LARGE-SIGNAL
FREQUENCY RESPONSE
1
0.5
0
â0.5
â1
VO = 1 VPP
VO = 500 mVPP
â1.5
â2 VO = 2 VPP
â2.5
â3
â3.5
Gain = 1,
RF = 34 â¦,
RL = 1 kâ¦,
VS = 5 V
â4
1
10
100
f â Frequency â MHz
Figure 23.
OUTPUT IMPEDANCE
vs
FREQUENCY
1000
100
Gain = 1
RF = 2.5 kâ¦
VS = 5 V, ± 5 V, 15 V
10
1
0.1
0.01
100 k
1M
10 M
100 M
1G
f â Frequency â Hz
Figure 26.
www.ti.com
(VS = 15 V)
FREQUENCY RESPONSE
24
G = 10
20
16
G=5
VS = 15 V,
RF = 2.49 kâ¦,
RL = 1 kâ¦,
VO = 0.1 VPP
12
8
G=2
4
G = â1
0
â4
0.1
1
10
100
f â Frequency â MHz
Figure 21.
(VS = ±5 V)
LARGE-SIGNAL
FREQUENCY RESPONSE
1
0.5
VO = 500 mVPP
0
â0.5
â1
â1.5
VO = 1 VPP
â2
â2.5
VO = 2 VPP
â3 Gain = 1,
â3.5
â4
RF = 34 â¦,
RL = 1 kâ¦,
VS = ± 5 V
1
10
100
f â Frequency â MHz
Figure 24.
110
100
90
80
70
60
50
40
30
20
10
0
1k
REJECTION RATIO
vs
FREQUENCY
VS = 15 V and 5 V
CMRR
PSRR+
PSRRâ
10 k 100 k 1 M 10 M 100 M
f â Frequency â Hz
Figure 27.
12
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