THS4505 Datasheet, PDF (16/38 Pages) Texas Instruments – WIDEBAND, LOW-DISTORTION, FULLY DIFFERENTIAL AMPLIFIERS

THS4504
THS4505
SLOS363C – AUGUST 2002 – REVISED MARCH 2004
TYPICAL CHARACTERISTICS (5 V Graphs) (continued)
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THIRD-ORDER OUTPUT INTERCEPT
POINT
vs
FREQUENCY
60
Gain = 1
R_f = 499 Ω
50
V_O = 2 V_PP
V_S = 5 V
40
200 kHz Tone Spacing
Normalized to 50 Ω
30
SLEW RATE
vs
DIFFERENTIAL OUTPUT VOLTAGE
STEP
1200
1000
800
Gain = 1
R_L = 800 Ω
R_f = 499 Ω
V_S = 5 V
Fall
Rise
600
20
Normalized to 200 Ω
10
R_L = 800 Ω
0
0
20
40
60
80 100
f − Frequency − MHz
Figure 47.
400
200
0
0 0.5 1 1.5 2 2.5 3 3.5 4
V_O − Differential Output Voltage Step − V
Figure 48.
SETTLING TIME
3
Rising Edge
2
Gain = 1
1
R_L = 800 Ω
R_f = 499 Ω
0
f= 1 MHz
V_S = 5 V
−1
Falling Edge
−2
−3
0 5 10 15 20 25 30 35 40
t − Time − ns
Figure 50.
OVERDRIVE RECOVERY
5
2.5
Gain = 4
4
R_L = 800 Ω
2
3
R_f = 499 Ω
1.5
Overdrive = 4.5 V
2
V_S = ±5 V
1
1
0.5
0
0
−1
−0.5
−2
−1
−3
−1.5
−4
−2
−5
−2.5
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1
t − Time − µs
Figure 51.
LARGE-SIGNAL TRANSIENT
RESPONSE
2
1.5
1
0.5
0
−0.5
−1
Gain = 1
R_L = 800 Ω
R_f = 499 Ω
t_r/t_f = 300 ps
V_S = ±5 V
−1.5
−2
−100 0
100 200 300
t − Time − ns
400 500
Figure 53.
SMALL-SIGNAL TRANSIENT
RESPONSE
0.4
0.3
0.2
0.1
0
−0.1
Gain = 1
R_L = 800 Ω
R_f = 499 Ω
t_r/t_f = 300 ps
V_S = ±5 V
−0.2
−0.3
−0.4
−100 0
100 200 300 400 500
t − Time − ns
Figure 54.
SETTLING TIME
1.5
Rising Edge
1
0.5
0
−0.5
−1
Gain = 1
R_L = 800 Ω
R_f = 499 Ω
f= 1 MHz
V_S = 5 V
Falling Edge
−1.5
0
50 100 150 200 250 300
t − Time − ns
Figure 49.
OVERDRIVE RECOVERY
6
3
Gain = 4
5 _{RL = 800 Ω}
4 R_f = 499 Ω
2
3 Overdrive = 5.5 V
2 ^{VS = ±5 V}
1
1
0
0
−1
−2
−1
−3
−4
−2
−5
−6
−3
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1
t − Time − µs
Figure 52.
VOLTAGE AND CURRENT NOISE
vs
FREQUENCY
100
V_n
10
I_n
1
0.01 0.1
1
10 100 1000 10 k
f − Frequency − kHz
Figure 55.
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