THS4121IDGN Datasheet, PDF (7/30 Pages) Texas Instruments – HIGH-SPEED FULLY DIFFERENTIAL I/O AMPLIFIERS

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THS4121
HARMONIC DISTORTION
vs
OUTPUT VOLTAGE
−60 _{VDD = 3.3 V,}
f = 1 MHz,
−70
R_L = 800 Ω,
R_f = 200 Ω,
G=1
2nd_HD
−80
3rd_HD
−90
−100
4th_HD
5th_HD
−110
Single Input / Differential Output
−120
0 0.5 1 1.5 2 2.5 3 3.5 4 4.5
V_O − Output Voltage − V
Figure 9.
THS4121
OUTPUT VOLTAGE
vs
LOAD RESISTANCE
2
V_DD = 3.3 V
1.5
Sink
1
0.5
0
−0.5
−1
Source
−1.5
−2
100
1k
10k
R_L − Load Resistance − Ω
Figure 11.
THS4120
THS4121
SLOS319D – FEBRUARY 2001 – REVISED OCTOBER 2004
THIRD INTERMODULALTION DISTORTION
vs
OUTPUT VOLTAGE
−10
V_DD = 3.3 V,
f = 1 MHz
−20 _{Rf = 270 Ω,}
R_L = 800 Ω
−30
−40
f = 10 MHz
−50
−60
−70
f = 5 MHz
−80
−90−25 _{−20 −15 −10 −5}
0
5
10
V_O − Output Voltage − V
Figure 10.
1.03
1.02
1.01
1
0.99
0.98
0.97
0.96
0.95
0
SETTLING TIME
V_DD = 3.3 V,
V_O = 2 V_PP,
R_F = 330 Ω,
R_L = 800 Ω,
G=1
Settling Time,
1% = 40 ns,
0.1% = 60 ns,
0.01% = 292 ns
100
200
300
400
500
t − Time − ns
Figure 12.
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