LMH6552 Datasheet, PDF (14/38 Pages) Texas Instruments – 1.5-GHz Fully Differential Amplifier

LMH6552
SNOSAX9I – APRIL 2007 – REVISED JANUARY 2015
www.ti.com
Typical Characteristics V⁺ = +5 V, V^− = −5 V (continued)
(T_A = 25°C, R_F = R_G = 357Ω, R_L = 500Ω, A_V = 1, for single ended in, differential out, unless specified).
6
210
0
5
175
NOISE VOLTAGE
4
140
INVERTING CURRENT
NOISE CURRENT
3
105
S21
-10
S22
S11
-20 ^{(SINGLE-ENDED}
INPUT)
-30
-40
2
NON-INVERTING CURRENT 70
NOISE CURRENT
1
35
0
0
0.0001 0.001 0.01 0.1 1 10 100
-50
-60
-70
-80
10
S11
S12
100
V⁺ = +5V
V^- = -5V
A_V = 1 V/V
1000
FREQUENCY (MHz)
Figure 33. Input Noise vs Frequency
FREQUENCY (MHz)
Figure 34. Differential S-Parameter Magnitude vs Frequency
400
300
S11
200
100
S22
0
V⁺ = +5V
V^- = -5V
A_V = 1 V/V
S12
-20
V⁺ = +5V
-30 _{V- = -5V}
-40 _{RF = 357:}
-50 ^{AV = 2 V/V}
-60
-70
R_L = 200:
-100
-200
S11
(SINGLE-ENDED INPUT)
S21
-30010
100
FREQUENCY (MHz)
1000
Figure 35. Differential S-Parameter Phase vs Frequency
-80
R_L = 800:
-90
-100
-110
0
f_c = 75 MHz (200 kHz SPACING)
SINGLE-ENDED INPUT
1 2 3 4 56 7
DIFFERENTIAL V_OUT (V_PP)
Figure 36. 3rd Order Intermodulation Products vs V_OUT
-20 _{V+ = +2.5V}
-30 _V- _{= -2.5V}
-40 R_F = 357:
-50 ^{AV = 2 V/V}
-60
R_L = 800:
-70
R_L = 200:
-80
-90
-100 ^fc ^{= 75 MHz (200 kHz SPACING)}
SINGLE-ENDED INPUT
-110
0 1 2 3 4 56 7
DIFFERENTIAL V_OUT (V_PP)
Figure 37. 3rd Order Intermodulation Products vs V_OUT
-65
R_L = 800:
-70 ^RF ^{= 360:}
A_V = +2
-75 V_OD = 2 V_PP
-80
V⁺ = +2.5V
V^- = -2.5V
-85
-90
-95 _{SINGLE-ENDED INPUT}
200 kHz SPACING
-100
50
60
70
80
V⁺ = +5V
V^- = -5V
90 100
CENTER FREQUENCY (MHz)
Figure 38. 3rd Order Intermodulation Products
vs Center Frequency
14
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