THS4508 Datasheet, PDF (12/29 Pages) Texas Instruments – WIDEBAND, LOW NOISE, LOW DISTORTION FULLY DIFFERENTIAL AMPLIFIER

THS4508
SLAS459A – SEPTEMBER 2005 – REVISED FEBRUARY 2006
TURN-ON TIME
3
6.4
2.8
PD Input
6
2.6
5.6
2.4
5.2
2.2
Output
4.8
2
4.4
1.8
4
1.6
3.6
1.4
3.2
1.2
2.8
1
2.4
0.8
2
0.6
0.4
0.2
Gain = 10 dB,
R_L = 200 W
1.6
1.2
0.8
0
0.4
-0.2
0
t - Time - (2.5 ms/div)
Figure 32.
90
80
70
60
50
40
30
20
10
0
−10
1
OPEN LOOP GAIN AND PHASE vs FREQUENCY
50
Gain
0
Phase
−50
−100
−150
−200
−250
100
10 k
1M
100 M 10 G
f − Frequency − Hz
Figure 34.
NOISE FIGURE vs FREQUENCY
22
21 _{G = 6 dB}
20
19 _{G = 10 dB}
18
17 G = 14 dB
16
50-W System
15
14 G = 20 dB
13
12
0 20 40 60 80 100 120 140 160 180 200
f - Frequency - MHz
Figure 36.
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INPUT OFFSET VOLTAGE vs CM INPUT VOLTAGE
10
9
8
7
6
5
4
3
2
1
0
-0.5 0
0.5 1
1.5
2
2.5
3
V_IC - Commom-Mode Input Voltage - V
Figure 33.
INPUT REFERRED NOISE vs FREQUENCY
100
10
I_n
V_n
1
0.01
0.1
1
10
f - Frequency - Hz
Figure 35.
QUIESCENT CURRENT vs SUPPLY VOLTAGE
44
42
T_A = 25^oC
T_A = 85^oC
40
38
36
T_A = -40^oC
34
32
30
28
3.75
4
4.25
4.5
4.75
V_S - Supply Voltage - V
Figure 37.
5
5.25
12
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