THS4120 Datasheet, PDF (6/23 Pages) Texas Instruments – HIGH-SPEED FULLY DIFFERENTIAL I/O AMPLIFIERS

THS4120
THS4121
SLOS319D – FEBRUARY 2001 – REVISED OCTOBER 2004
TOTAL HARMONIC DISTORTION
vs
FREQUENCY
−20
V_DD = 3.3 V,
V_O = 4 V_PP
−30
R_f = 200 Ω,
R_L = 800 Ω
G=1
−40
Single−Ended Input /
−50
Differential Output
−60
−70
−80
100 k
Differential Input/
Differential Output
1M
f − Frequency − Hz
Figure 3.
10 M
THS4121
TOTAL HARMONIC DISTORTION
vs
FREQUENCY
−40
V_DD = 3.3 V,
−50
V_O = 2 V_PP,
R_L = 800 Ω,
R_f = 270 Ω,
−60 ^{G = 1}
5th_HD
−70
23nrd_HD
−80
−90
−100
3rd_HD
−110
−120
100 k
4th_HD
Differential Input /
Differential Output
1M
f − Frequency − Hz
10 M
Figure 5.
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TOTAL HARMONIC DISTORTION
vs
OUTPUT VOLTAGE
−50
V_DD = 3.3 V,
f = 1 MHz
R_f = 200 Ω,
R_L = 800 Ω
−60
Single Input /
Differential Output
Differential Input /
Differential Output
−70
−80
−90
0
1
2
3
4
5
V_O − Output Voltage − V
Figure 4.
THS4121
HARMONIC DISTORTION
vs
FREQUENCY
−30
V_DD = 3.3 V,
−40
V_O = 4 V_PP,
R_L = 800 Ω,
−50
R_f = 200 Ω,
G=1
3rd_HD
−60
2nd_HD
−70
−80
−90
−100
−110
−120
100 k
5th_HD
4th_HD
Differential Input /
Differential Output
1M
f − Frequency − Hz
Figure 6.
10 M
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