THS4281 Datasheet, PDF (16/37 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)
(f = 100 kHz)
TOTAL HARMONIC DISTORTION + NOISE
vs OUTPUT VOLTAGE
0.100
VS = ±5 V
VS = 5 V
VS = 3.3 V
VS = 3 V
VS = 2.7 V
VS = 15 V
0.010
0.001
f = 100 kHz,
Bandwidth = 600 kHz,
Gain = 2,
RF = 2 kΩ,
RL = 1 kΩ , to VS/2
0.1
1
Amplifier Noise
Limit Line
10 20
V_O − Output Voltage − V_PP
Figure 55.
(V_S = 5 V)
DIFFERENTIAL GAIN vs
NUMBER OF LOADS
0.8
0.7
PAL
0.6
0.5
0.4
NTSC
0.3
0.2
0.1
0
1
Gain = 2
R_F= 2.5 kΩ
V_S = 5 V
40 IRE − NTSC and Pal
Worst Case ±100 IRE Ramp
2
3
Number of Loads − 150 Ω
Figure 56.
(V_S = 5 V)
DIFFERENTIAL PHASE vs
NUMBER OF LOADS
2
1.8
1.6
°
1.4
PAL
NTSC
1.2
1
0.8
0.6
0.4
0.2
0
1
Gain = 2
R_f = 2.5 kΩ
V_S = 5 V
40 IRE − NTSC and Pal
Worst Case ±100 IRE Ramp
2
3
Number of Loads − 150 Ω
Figure 57.
(V_S = ±5 V)
DIFFERENTIAL GAIN vs
NUMBER OF LOADS
1.6
1.4
PAL
1.2
1
0.8
0.6
0.4
0.2
0
1
NTSC
Gain = 2
R_F= 2.5 kΩ
V_S = ±5 V
40 IRE − NTSC and Pal
Worst Case ±100 IRE Ramp
2
3
Number of Loads − 150 Ω
Figure 58.
(V_S = ±5 V)
DIFFERENTIAL PHASE vs
NUMBER OF LOADS
1.6
1.4
° ^1.2
1
0.8
PAL
NTSC
0.6
0.4
0.2
0
1
Gain = 2
R_f = 2.5 kΩ
V_S = ±5 V
40 IRE − NTSC and Pal
Worst Case ±100 IRE Ramp
2
3
Number of Loads − 150 Ω
Figure 59.
INPUT OFFSET VOLTAGE
vs
TEMPERATURE
800
700
V_ICR = V_S/2
600
500
V_S = 15 V
400
V_S = ±5 V
300
V_S = 5 V
200
V_S = 3 V
100
0
−100
−200
−40−30−20−10 0 10 20 30 40 50 60 70 80 90
T_C − Case Temperature − °C
Figure 60.
(V_S = 5 V)
INPUT BIAS AND OFFSET CURRENT
vs TEMPERATURE
510
40
V_S = 5 V
500
36
490
32
I_OS
28
480
470
I_IB−
24
20
460
I_IB+
16
450
12
440
8
430
4
420
0
−40 −30−20−10 0 10 20 30 40 50 60 70 80 90
T_C − Case Temperature − °C
Figure 61.
(V_S = 15 V)
INPUT BIAS AND OFFSET CURRENT
vs TEMPERATURE
520
36
V_S =15 V
510
32
500
I_OS
28
490
I_IB−
24
480
20
470
I_IB+
16
460
12
450
8
440
4
430
0
−40 −30−20 −10 0 10 20 30 40 50 60 70 80 90
T_C − Case Temperature − °C
Figure 62.
SMALL-SIGNAL
TRANSIENT RESPONSE
60
Output
50
40
30
20
Input
10
0
−10
−20
Gain = 2
−30
R_L = 1 kΩ
R_F = 2.5 kΩ
−40
V_S = ± 7.5 V
−50
−60
0 100 200 300 400 500 600 700
t − Time − ns
Figure 63.
16
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