THS4281_14 Datasheet, PDF (12/38 Pages) Texas Instruments – VERY LOW-POWER, HIGH-SPEED, RAIL-TO-RAIL INPUT AND OUTPUT VOLTAGE-FEEDBACK OPERATIONAL AMPLIFIER

THS4281
SLOS432A – APRIL 2004 – REVISED NOVEMBER 2009
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TYPICAL CHARACTERISTICS (continued)
(V_S = 5 V)
FREQUENCY RESPONSE
24
G = 10
20
V_S = 5 V,
R_F = 2 kΩ,
R_L = 1 kΩ,
V_O = 0.1 V_PP
16
G=5
(V_S = ±5 V)
FREQUENCY RESPONSE
24
G = 10
20
16
G=5
V_S = ±5 V,
R_F = 2.49 kΩ,
R_L = 1 kΩ,
V_O = 0.1 V_PP
(V_S = 15 V)
FREQUENCY RESPONSE
24
G = 10
20
16
G=5
V_S = 15 V,
R_F = 2.49 kΩ,
R_L = 1 kΩ,
V_O = 0.1 V_PP
12
8
G=2
12
8
G=2
12
8
G=2
4
G = −1
0
4
G = −1
0
4
G = −1
0
−4
0.1
1
−4
10
100
0.1
1
−4
10
100
0.1
1
10
100
f − Frequency − MHz
f − Frequency − MHz
f − Frequency − MHz
Figure 19.
Figure 20.
Figure 21.
(V_S = 2.7 V)
LARGE-SIGNAL
FREQUENCY RESPONSE
1
0.5
V_O = 500 mV_PP
0
−0.5
−1
−1.5 ^VO ^{= 1 V}PP
−2
−2.5 ^VO ^{= 2 V}PP
−3
−3.5
Gain = 1,
R_F = 34 Ω,
R_L = 1 kΩ,
V_S = 2.7 V
−4
1
10
100
f − Frequency − MHz
Figure 22.
(V_S = 5 V)
LARGE-SIGNAL
FREQUENCY RESPONSE
1
0.5
0
−0.5
−1
V_O = 1 V_PP
V_O = 500 mV_PP
−1.5
−2 V_O = 2 V_PP
−2.5
−3
−3.5
Gain = 1,
R_F = 34 Ω,
R_L = 1 kΩ,
V_S = 5 V
−4
1
10
100
f − Frequency − MHz
Figure 23.
(V_S = ±5 V)
LARGE-SIGNAL
FREQUENCY RESPONSE
1
0.5
V_O = 500 mV_PP
0
−0.5
−1
−1.5
V_O = 1 V_PP
−2
−2.5
V_O = 2 V_PP
−3 Gain = 1,
−3.5
−4
R_F = 34 Ω,
R_L = 1 kΩ,
V_S = ± 5 V
1
10
100
f − Frequency − MHz
Figure 24.
110
100
90
80
70
60
50
40
30
20
10
0
−10
1
OPEN-LOOP GAIN
vs
FREQUENCY
50
R_L = 1 kΩ,
25
V_S = ±5 V
0
Gain
−25
−50
Phase
−75
−100
−125
−150
−175
−200
−225
−250
10 100 1k 10k 100k 1 M 10 M 100 M
f − Frequency − Hz
Figure 25.
OUTPUT IMPEDANCE
vs
FREQUENCY
1000
100
Gain = 1
R_F = 2.5 kΩ
V_S = 5 V, ± 5 V, 15 V
10
1
0.1
0.01
100 k
1M
10 M
100 M
1G
f − Frequency − Hz
Figure 26.
110
100
90
80
70
60
50
40
30
20
10
0
1k
REJECTION RATIO
vs
FREQUENCY
V_S = 15 V and 5 V
CMRR
PSRR+
PSRR−
10 k 100 k 1 M 10 M 100 M
f − Frequency − Hz
Figure 27.
12
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