LMH6611_14 Datasheet, PDF (17/42 Pages) National Semiconductor (TI) – LMH6611/LMH6612 Single Supply 345 MHz Rail-to-Rail Output Amplifiers

LMH6611, LMH6612
www.ti.com
SNOSB00K – NOVEMBER 2007 – REVISED OCTOBER 2013
Typical Performance Characteristics (continued)
At T_J = 25°C, A_V = +1 (R_F = 0Ω), otherwise R_F = 560Ω for A_V ≠ +1, unless otherwise specified.
V_OUT
vs.
Closed Loop Output Impedance
vs.
V_S
Frequency A_V = +1
20
VOLTAGE V_OUT IS
25
ABOVE V^- SUPPLY
30
V^- = 0V
100
V⁺ = +2.5V
V^- = -2.5V
10
35
R_L = 150: TO GND
40
-40°C
1
45
50
25°C
0.1
55
60
0.01
125°C
65
70
2 3 4 5 6 7 8 9 10 11 12
V_S (V)
0.001
0.0001 0.001 0.01 0.1
1
10 100
FREQUENCY (MHz)
Figure 45.
Figure 46.
Circuit for Positive (+) PSRR Measurement
50:
V⁺
+
0.1 PF 1000 PF
-
0.1 PF
R_G
560:
R_F
560:
-
LMH6611
+
+-
1000 PF
V_O
CABLE
50:
a ^VIN
0.1 PF
V^-
1000 PF
Figure 47.
+PSRR
vs.
Frequency
110
100
V⁺ = +5V
90
V^- = -5V
80
70 _V⁺ _{= +2.5V}
60 _V^- _{= -2.5V}
50
40
V⁺ = +1.5V
V^- = -1.5V
30
20
V_IN = 225 mV_PP
10
R_F = 560:
0
10 100 1k 10k 100k 1M 10M 100M
FREQUENCY (Hz)
Figure 48.
Circuit for Negative (−) PSRR Measurement
V⁺
R_F
560:
0.1 PF
+
1000 PF
-
R_G
560:
4_- ⁶
LMH6611
3
+
2
1
50:
V_O
-
0.1 PF
+
V^-
1000 PF
0.1 PF
-+
1000 PF
CABLE
50:
a ^VIN
Figure 49.
−PSRR
vs.
Frequency
120
110
V⁺ = +2.5V
100
V^- = -2.5V
90
80
70 ^{V+ = +5V}
60 ^{V- = -5V}
50
V⁺ = +1.5V
V^- = -1.5V
40
30
20 _{VIN = 225 mVPP}
10 _{RF = 560:}
0
10 100 1k 10k 100k 1M
10M 100M
FREQUENCY (Hz)
Figure 50.
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