THS4520_14 Datasheet, PDF (18/37 Pages) Texas Instruments – WIDEBAND, LOW NOISE, LOW DISTORTION FULLY DIFFERENTIAL AMPLIFIER

THS4520
SLOS503B – SEPTEMBER 2006 – REVISED JULY 2007
7
6.9 Gain = 6 dB,
6.8 ^RF ^{= 499 W,}
6.7 ^{RL = 200 W,}
6.6 ^{VO = 1 VPP,}
6.5 ^{VS = ±1.65 V}
6.4
6.3
6.2
6.1
6
5.9
5.8
5.7
5.6
5.5
0.1
1
0.1 dB FLATNESS
10
100
f - Frequency - MHz
1000
Figure 48.
TRANSITION RATE vs OUTPUT VOLTAGE
600
550
500
Rise
450
Fall
400
350
300
250
200
0
Gain = 6 dB
R_F = 499 W
R_L = 200 W
V_S = ±1.65 V
0.5 1 1.5 2 2.5 3 3.5 4
V_OD - Differential Output Voltage - V_PP
Figure 50.
TRANSIENT RESPONSE
1.5
1
-0.5
V_OD = 2 V_PP
V_S = ±1.65 V
Gain = 6 dB
0
R_L = 200 W
-0.5
-1
-1.5
t −Time − 5 ns/div
Figure 52.
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10
0
-10
-20
-30
-40
-50
-60
-70
-80
-90
1
S-PARAMETERS vs FREQUENCY
S21
S11
Gain = 0 dB
S22
R_F = 499 W
R_L = 200 W
S12
V_O = 100 mV_PP
V_S = ±1.65 V
10
100
1000
f - Frequency - MHz
Figure 49.
TRANSIENT RESPONSE
2.5
2
1.5
1
-0.5
0
V_OD = 4 V_PP
V_S = ±1.65 V
Gain = 6 dB
R_L = 200 W
-0.5
-1
-1.5
-2
-2.5
t − Time − 5 ns/div
Figure 51.
OUTPUT BALANCE ERROR vs FREQUENCY
-20
R_F = 499 W
-30 R_L = 200 W
V_O = 1 V_PP
-40 V_S = ±1.65 V
-50
Gain = 0 dB
-60
Gain = 6 dB
-70
-80
-90
0.1
1
10
100
f - Frequency - MHz
Figure 53.
1000
18
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