Datasheet

1.5 5 2.5 3 3.5
-50
-40
-30
-20
-10
0
10
20
V
OOS
(mV)
V
I_CM
LG, 0 dB
LG, 20 dB
HG, 0 dB
HG, 20 dB
85°C
0 4 8 12 16 20
1.0
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.8
1.9
2.0
V
OUT
(V
PP
)
LADDER ATTENUATION (dB)
LG
HG
Aux, HG
Aux, LG
f = 250 MHz
R
L
= 100
1.5 5 2.5 3 3.5
-50
-40
-30
-20
-10
0
10
20
V
OOS
(mV)
V
I_CM
LG, 0 dB
LG, 20 dB
HG, 0 dB
HG, 20 dB
-40°C
1.5 5 2.5 3 3.5
-50
-40
-30
-20
-10
0
10
20
V
OOS
(mV)
V
I_CM
LG, 0 dB
LG, 20 dB
HG, 0 dB
HG, 20 dB
25°C
-40°C
0 4 8 12 16 20
-0.15
-0.1
-0.05
0
0.05
0.1
0.15
0.2
0.25
GAIN ACCURACY (dB)
LADDER ATTENUATION (dB)
Relative to HG/0 dB @ 25°C
LG
-40°C
25°C
85°C
25°C
85°C
HG
0 4 8 12 16 20
-0.094
-0.093
-0.092
-0.091
-0.09
-0.089
-0.088
GAIN (dB)
LADDER ATTENUATION (dB)
HG
LG
Aux Gain ± Main Gain
LMH6518
SNOSB21C –MAY 2008–REVISED JULY 2013 www.ti.com
Typical Performance Characteristics (continued)
Unless otherwise specified, Input CM = 2.5V, V
CM
= 1.2V, V
CM AUX
= 1.2V, Single-ended input drive, V
CC
= 5V, V
DD
= 3.3V, R
L
= 100Ω differential (both Main & Auxiliary Outputs), V
OUT
= 0.7 V
PP
differential (both Main and Auxiliary Outputs), Main output
specification (Auxiliary is labeled “Auxiliary”), full bandwidth setting, gain = 18.8 dB (Preamp LG, 0 dB ladder attenuation), Full
Power setting
(1)
.
Auxiliary Gain Accuracy Gain Matching
vs. vs.
Ladder Attenuation Ladder Attenuation
Figure 32. Figure 33.
A
V_CM
A
V_CM
Figure 34. Figure 35.
−1 dB Compression
vs.
A
V_CM
Ladder Attenuation
Figure 36. Figure 37.
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