LMH6555_14 Datasheet, PDF (8/37 Pages) Texas Instruments – LMH6555 Low Distortion 1.2 GHz Differential Driver

LMH6555
SNOSAJ1C – NOVEMBER 2006 – REVISED MARCH 2011
www.ti.com
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
Unless otherwise specified, R_S1 = R_S2 = 50Ω, V_S = 3.3V, R_L = 100Ω differential, V_OUT = 0.8 V_PP. See DEFINITION OF TERMS
AND SPECIFICATIONS (ALPHABETICAL ORDER) for definition of terms used throughout the datasheet.
Step Response Settling Time
Harmonic Distortion
vs.
Frequency
4
-20
R_L = 100:
-30 _{VOUT = 800 mVPP (DIFFERENTIAL)}
SINGLE ENDED INPUT
2
-40
+1%
0
-50
HD2
-60
-1%
-2
-70
-80
HD3
-90
-4
0 0.5 1 1.5 2 2.5 3 3.5
TIME (ns)
Figure 9.
-100
100
FREQUENCY (MHz)
Figure 10.
1000
3^rd Order Intermodulation Distortion
0
f _CENTER = 1 GHz
-10 _{SINGLE-ENDED INPUT}
-20 ^{RL = 100: (DIFFERENTIAL)}
0 dBm = 894 mV_PP
-30
-40
-50
-60
-70
-80
-90
-25 -20 -15 -10
-5
0
SINGLE TONE P_OUT (dBm)
Figure 11.
A_{V_DIFF} & R_{IN_DIFF}
vs.
V_{I_CM}
0.04
83
0.03
82
0.02
81
0.01
80
0
79
-0.01
78
-0.02
77
-0.3 0.2 0.7 1.2 1.7 2.2
V_{I_CM} (V)
Figure 12.
Insertion Gain Distribution
35
V_S = 3.3V
30 ^'VIN ^{= 160 mV}
25
20
15
10
5
0
12.5
13
13.5
14
14.5
A_{V_DIFF} (dB)
Figure 13.
Insertion Gain Variation
vs.
Input Amplitude
0.3
0.2
-40°C
0.1
25°C
0
-0.1
85°C
-0.2
-0.3
-0.4 ^AV_DIFF ^NORMALIZED
to V_IN = 160 mV @ 25°C
-0.5
0 20 40 60 80 100 120 140 160 180 200
|V_IN (mV)|
Figure 14.
8
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