THS4551 Datasheet, PDF (15/70 Pages) Texas Instruments – Low-Noise, Precision, 150-MHz, Fully Differential Amplifier

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THS4551
SBOS778A – APRIL 2016 – REVISED AUGUST 2016
Typical Characteristics: (V_S+) – (V_S–) = 3 V (continued)
at T_A ≈ 25°C, VOCM pin = open, R_F = 1 kΩ, R_L = 1 kΩ, V_OUT = 2 V_PP, 50-Ω input match, G = 1 V/V, PD = V_S+, single-ended
input, differential output, and input and output referenced to default midsupply for ac-coupled tests (unless otherwise noted);
see Figure 61 for a gain of 1-V/V test circuit
1.5
0.5
0.4
R_O = 0 :
R_O = 82.5 :
1
0.3
0.5
0.2
0.1
0
0
-0.5
0.2-V step, t_R = 2 ns
-1
0.5-V step, t_R = 4 ns
1-V step, t_R = 8 ns
2-V step, t_R = 12ns
-1.5
0 20 40 60 80 100 120 140 160 180 200
Time (ns)
D025
G = 1 V/V, 5-MHz input, single-ended input to differential output
-0.1
-0.2
-0.3
-0.4
-0.5
0 20 40 60 80 100 120 140 160 180 200
Time (ns)
D026
G = 1 V/V, V_OUT = 500-mV step into 22-pF C_L, see Figure 64
Figure 25. Small- and Large-Signal Step Response
1.5
1
0.5
0
-0.5
0.2-V step, t_R = 2 ns
-1
0.5-V step, t_R = 2 ns
1-V step, t_R = 6 ns
2-V step, t_R = 12 ns
-1.5
0 20 40 60 80 100 120 140 160 180 200
Time (ns)
D027
G = 2 V/V, 5-MHz input, single-ended input to differential output.
Figure 26. Step Response Into Capacitive Load
0.5
0.4
0.3
0.2
0.1
0
-0.1
-0.2
-0.3
-0.4
R_O = 0 :
R_O = 51.1 :
-0.5
0 20 40 60 80 100 120 140 160 180 200
Time (ns)
D028
G = 2 V/V, V_OUT = 500-mV step into 22-pF C_L, see Figure 64
Figure 27. Small- and Large-Signal Step Response
0.2
0.15
0.1
0.2-V step, t_R = 2 ns
1-V step, t_R = 8 ns
2-V step, t_R = 12 ns
0.05
Figure 28. Step Response Into Capacitive Load
6
Input
Output
4
2
0
0
-0.05
-2
-0.1
-4
-0.15
-0.2
0
10
20
30
40
50
60
Time ' from 50% of Input Edge (ns)
Simulated with G = 1 V/V
70
D029
-6
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1
Time (Ps)
D030
Single-ended to differential gain of 2, 2X input overdrive
Figure 29. Small- and Large-Signal Step Settling Time
Figure 30. Overdrive Recovery Performance
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