THS4281 Datasheet, PDF (13/37 Pages) Texas Instruments – VERY LOW-POWER, HIGH-SPEED, RAIL-TO-RAIL INPUT AND OUTPUT VOLTAGE-FEEDBACK OPERATIONAL AMPLIFIER

THS4281
www.ti.com
SLOS432A – APRIL 2004 – REVISED NOVEMBER 2009
TYPICAL CHARACTERISTICS (continued)
NOISE
vs
FREQUENCY
1000
V_S = 2.7 V to 15 V,
T_A = 27°C
100
10
1
10
V_n
I_n
12.5 nV/rt(Hz)
1.5 pA/rt(Hz)
100
1K
10K
f − Frequency − Hz
100K
Figure 28.
(V_S = 2.7 V)
SLEW RATE
50
Gain = −1,
R_F = 3 kΩ,
R_L = 1 kΩ,
40 VS = 2.7 V
Fall
30
Rise
20
10
0
0.5 0.75 1 1.25 1.5 1.75 2
V_O − Output Voltage − V_PP
Figure 29.
(V_S = 5 V)
SLEW RATE
60
Gain = −1,
R_F = 3 kΩ,
50
R_L = 1 kΩ,
V_S = 5 V
40
Fall
Rise
30
20
10
0
0.5 1
1.5 2
2.5 3
3.5 4
V_O − Output Voltage − V_PP
Figure 30.
(V_S = ±5 V)
SLEW RATE
70
Gain = −1,
60
R_F = 3 kΩ,
R_L = 1 kΩ,
V_S = ±5 V
50
40
30
Fall
Rise
20
10
0
0.5 1
1.5 2 2.5 3 3.5 4
V_O − Output Voltage − V_PP
4.5 5
Figure 31.
(V_S = 15 V)
SLEW RATE
160
Gain = −1,
140
R_F = 3 kΩ,
R_L = 1 kΩ,
V_S = 15 V
120
100
Rise
80
Fall
60
40
20
0
0 1 2 3 4 5 6 7 8 9 10 11 12
V_O − Output Voltage − V_PP
Figure 32.
0.6
0.4
0.2
0
−0.2
−0.4
−0.6
0
(V_S = ±1.35 V)
SETTLING TIME
Rise
Gain = −1
R_L = 1 kΩ
R_F= 3 kΩ
V_S = ±1.35 V
1-V Step
Fall
20
40
60
80
100
t − Time − ns
Figure 33.
(V_S = ±1.35 V)
SETTLING TIME
1
0.8
Rise
Gain = −1
R_L = 1 kΩ
0.6
0.4
R_F= 3 kΩ
Fall
V_S = ±1.35 V
1-V Step
0.2
0
−0.2
−0.4
−0.6
−0.8
−1
20 40 60 80 100 120 140 160 180
t − Time − ns
Figure 34.
(V_S = ±2.5 V)
SETTLING TIME
1.5
1
0.5
Gain = −1
R_L = 1 kΩ
R_F = 3 kΩ
0
V_S = ±2.5 V
−0.5
−1
−1.5
0 10 20 30 40 50 60 70 80 90 100
t − Time − ns
Figure 35.
(V_S = ±2.5 V)
SETTLING TIME
1
Gain = −1
0.8
R_L = 1 kΩ
R_F = 3 kΩ
V_S = ±2.5 V
0.6
2-V Step
0.4
0.2
Fall
0
−0.2
Rise
−0.4
40 60 80 100 120 140 160 180 200
t − Time − ns
Figure 36.
Copyright © 2004–2009, Texas Instruments Incorporated
Product Folder Link(s): THS4281
Submit Documentation Feedback
13