LMH6503 Datasheet, PDF (15/33 Pages) National Semiconductor (TI) – Wideband, Low Power, Linear Variable Gain Amplifier

LMH6503
www.ti.com
SNOSA78E – OCTOBER 2003 – REVISED APRIL 2013
Typical Performance Charateristics (continued)
Unless otherwise specified: V_S = ±5V, 25°C, V_G = V_{G_MAX}, V_CM = 0V, R_F = 1kΩ, R_G = 174Ω, both inputs terminated in 50Ω, R_L
= 100Ω, Typical values, results referred to device output:
HD2 & HD3 vs. V_G
THD vs. V_G
90
HD3, 0.25V_PP
80
HD2, 0.25V_PP
70
HD2, 1V_PP
60
80
0.25V_PP
70
1V_PP
60
50
50
HD2, 2V_PP
40
2V_PP
30
40
HD3, 2V_PP
20
30 _{HD3, 1VPP}
20
-1
-0.6 -0.2 0.2
V_G (V)
Figure 52.
20MHZ
0.6
1
10
f = 20MHz
0
-1 -0.6 -0.2 0.2 0.6
1
V_G (V)
Figure 53.
V_G Bias Current vs. V_G
50
45
40
35
30
25
20
15
10
5
0
-1.4 -1.0 -0.6 -0.2 0.2 0.6 1.0 1.4
V_G (V)
Figure 54.
Step Response Plot
0.5V_PP SMALL SIGNAL
SS REF
LS REF
5V_PP LARGE SIGNAL
4 ns/DIV
Figure 55.
Step Response Plot
0.5V_PP SMALL SIGNAL
SS REF
LS REF
V_G = V_{G_MID} 2.5VPP LARGE SIGNAL
4 ns/DIV
Figure 56.
1.5
1.2
0.9
0.6
0.3
0 VG
-0.3
-0.6
-0.9
-1.2
-1.5
Gain vs. V_G Step
10
V_IN= 0.3V
9
A_VMAX= 10
R_L= 100:
8
7
6
5
4
GAIN
3
2
1
0
t (10ns/DIV)
Figure 57.
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