LMH6504 Datasheet, PDF (11/29 Pages) National Semiconductor (TI) – Wideband, Low Power, Variable Gain Amplifier

LMH6504
www.ti.com
SNOSA96D – NOVEMBER 2003 – REVISED MARCH 2013
Typical Performance Characteristics (continued)
Unless otherwise specified: V_S = ±5V, T_A = 25°C, V_G = V_GMAX, R_F = 1 kΩ, R_G = 100Ω, V_IN = 0.1V, input terminated in 50Ω. R_L
= 100Ω, Typical values.
THD vs. P_OUT
80
THD vs. Gain
-100
70
1 MHz
60
50
20 MHz
40
-90
100 kHz
-80
-70
2 MHz
-60
-50
30
20
10
V_G = V_GMID
0
-10 -5 0 5 10
POUT (dBm)
Figure 33.
15 20
-40
25 MHz
-30
-20
V_OUT = 0.25 V_PP
-10
V_G VARIED
0
-15 -10 -5 0 5 10 15 20 25
GAIN (dB)
Figure 34.
THD vs. Gain
-90
V_OUT = 1 V_PP
-80
V_G VARIED
-70
-60
100 kHz
2 MHz
-50
-40
-30
25 MHz
-20
-10
0
-5
0
5
10
15
20
GAIN (dB)
Figure 35.
Differential Gain & Phase
0.6
0.19
f = 4.43 MHz
0.5 ^{RL = 100:}
V_G = V_GMAX
0.4
0.16
0.13
0.3
DP
0.1
0.2
0.07
DG
0.1
0.04
0
0.01
-0.1
-0.02
-1.4 -1 -0.6 -0.2 0.2 0.6 1 1.4
V_OUT DC (V)
Figure 36.
V_G Bias Current vs. V_G
940
Output Impedance
100
920
10
900
880
1
860
0.1
840
820
0 0.5 1 1.5 2 2.5 3
V_G (V)
Figure 37.
0.01
1k
10k
100k
1M
10M
FREQUENCY (Hz)
Figure 38.
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