THS4121 Datasheet, PDF (6/31 Pages) National Semiconductor (TI) – HIGH-SPEED FULLY DIFFERENTIAL I/O AMPLIFIERS

THS4120
THS4121
SLOS319D – FEBRUARY 2001 – REVISED OCTOBER 2004
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.
THS4121
HARMONIC DISTORTION
vs
FREQUENCY
−20
V_DD = 3.3 V,
−30
V_O = 4 V_PP,
R_L = 800 Ω,
R_f = 200 Ω,
−40 ^{G = 1}
2nd_HD
−50
3rd_HD
−60
−70
−80
−90
−100
100 k
5th_HD
4th_HD
Single Input / Differential Output
1M
f − Frequency − Hz
10 M
Figure 7.
www.ti.com
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
THS4121
HARMONIC DISTORTION
vs
OUTPUT VOLTAGE
−60
V_DD = 3.3 V,
f = 1 MHz,
−70 ^{RL = 800 Ω,}
R_f = 200 Ω,
G=1
2nd_HD
−80
3rd_HD
−90
−100
−110
−120
0
0.5 1
1.5 2
Differential Input /
Differential Output
2.5 3 3.5 4 4.5 5
V_O − Output Voltage − V
Figure 8.
6
Submit Documentation Feedback