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THS4281 Datasheet, PDF (14/37 Pages) Texas Instruments – VERY LOW-POWER, HIGH-SPEED, RAIL-TO-RAIL INPUT AND OUTPUT VOLTAGE-FEEDBACK OPERATIONAL AMPLIFIER | |||
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THS4281
SLOS432A â APRIL 2004 â REVISED NOVEMBER 2009
www.ti.com
TYPICAL CHARACTERISTICS (continued)
(VS = ±5 V)
SETTLING TIME
1.5
1
0.5
Gain = â1
RL = 1 kâ¦
RF= 3 kâ¦
0
VS = ±5 V
â0.5
â1
â1.5
0 10 20 30 40 50 60 70 80 90 100
t â Time â ns
(VS = ±5 V)
SETTLING TIME
1
Gain = â1
0.8
RL = 1 kâ¦
RF = 3 kâ¦
VS = ±5 V
0.6
2-V Step
0.4
0.2
Rise
0
â0.2
Fall
â0.4
40 60 80 100 120 140 160 180 200
t â Time â ns
(Gain = +1)
HARMONIC DISTORTION
vs FREQUENCY
â30
VO = 1 VPP,
Gain = 1,
â40 RL = 1 kâ¦, to VS/2
â50
VS = 2.7 V, HD2
VS = 2.7 V, HD3
â60 VS = 5 V, HD2
â70
â80
â90
â100
â110
0.1
VS = ±5 V,
15 V HD2
VS = 5 V,±5 V,
15 V HD3
1
10
f â Frequency â MHz
Figure 37.
Figure 38.
Figure 39.
(Gain = +1)
HARMONIC DISTORTION
vs FREQUENCY
â30
VO = 2 VPP,
Gain = 1,
â40 RL = 1 kâ¦, to VS/2
â50
VS = 2.7 V, HD2
VS = 2.7 V, HD3
â60
VS = 5 V, HD2
â70
â80
â90
â100
VS = ±5 V,
15 V HD2
VS = 5 V,±5 V,
15 V HD3
â110
0.1
1
10
f â Frequency â MHz
Figure 40.
(VS = 3 V, 3.3 V)
HARMONIC DISTORTION
vs FREQUENCY
â80
â85 VS = 3.3 V, 2 VPP, HD2
â90
â95
â100
â105
VS = 3.3 V, 2 VPP, HD3
VS = 3 V, 1 VPP, HD2
VS = 3 V, 1 VPP, HD3
â110
â115
VS = 3.3 V, 1 VPP, HD2
â120 VS = 3.3 V, 1 VPP, HD3
â125
â130
10
Gain = 2,
RL = 1 kâ¦, to VS/2
100
1k
10 k 20 k
f â Frequency â Hz
Figure 41.
(Gain = +2)
HARMONIC DISTORTION
vs FREQUENCY
â30
â40
VO = 1 VPP,
Gain = 2,
RL = 1 kâ¦, to VS/2
â50
â60
â70 VS = 2.7 V, HD2
â80
â90
â100
â110
VS = 2.7 V, HD3
VS = 5 V ±5 V,
15 V HD2
â120
â130
100
VS = 5 V ±5 V,
15 V HD3
1 k 10 k 100 k 1 M 10 M
f â Frequency â Hz
Figure 42.
(Gain = +2)
HARMONIC DISTORTION
vs FREQUENCY
â30
â40
VO = 2 VPP,
Gain = 2,
RL = 1 kâ¦, to VS/2
â50
â60
VS = 2.7 V, 3 V, HD2
â70
â80 VS = 3 V, HD3
â90
â100
â110
VS = 2.7 V, HD3
VS = 5 V ±5 V,
15 V HD2
â120
â130
100
VS = 5 V ±5 V,
15 V HD3
1 k 10 k 100 k 1 M 10 M
f â Frequency â Hz
Figure 43.
HARMONIC DISTORTION
vs
LOAD RESISTANCE
â60
Gain = 2
â70 f = 10 khz
VS = 3 V, 2 VPP, HD2
â80
â90
â100
â110
VS = 3 V, 2 VPP, HD3
VS = 3 V, 1 VPP, HD2
VS = 3 V, 1 VPP, HD3
VS = 5V and ±5V, 2VPP, HD3
â120
VS = 5 V, and
â130 ±5 V, 2 VPP, HD2
100
1k
10 k
RL â Load Resistance â W
Figure 44.
100 k
(VS = 2.7 V, 5 V)
HARMONIC DISTORTION
vs OUTPUT VOLTAGE
â60
Gain = 2,
â70
RL = 1 kâ¦, to VS/2,
f = 10 kHz
VS = 2.7 V, HD2
â80
â90
â100
â110
â120
â130
0.1
VS = 2.7 V, HD3
VS = 5 V, HD2
VS = 5 V, HD3
1
10
VO â Output Voltage â VPP
Figure 45.
14
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