THS4121 Datasheet, PDF (8/31 Pages) National Semiconductor (TI) – HIGH-SPEED FULLY DIFFERENTIAL I/O AMPLIFIERS

THS4120
THS4121
SLOS319D – FEBRUARY 2001 – REVISED OCTOBER 2004
VOLTAGE NOISE
vs
FREQUENCY
140
120
100
80
60
40
20
0
1
10
100
1k
10 k
f − Frequency − Hz
Figure 13.
THS4121
COMMON-MODE REJECTION RATIO
vs
FREQUENCY
−50
V_DD = 3.3 V,
R_f = 1 kΩ,
−60 ^{RL = 800 Ω,}
G=1
−70
100 k
−80
−90
−100
−110
100 k
1M
10 M
f − Frequency − Hz
Figure 15.
100 M
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OUTPUT OFFSETE VOLTAGE
vs
COMMON-MODE INPUT VOLTAGE
0.1
0
−0.1
−0.2
−0.3
−0.4
0
0.5
1
1.5
2
2.5
3
VIC− Common-Mode Input Voltage − V
Figure 14.
1000
THS4121
SINGLE-ENDED OUTPUT IMPEDANCE
vs
FREQUENCY
V_DD = 3.3 V,
V_I = 5 dBm
G=1
100
10
1
100 k
1M
10 M
f − Frequency − Hz
Figure 16.
100 M
8
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