OPA4872-EP_12 Datasheet, PDF (7/25 Pages) Texas Instruments – 4:1 HIGH-SPEED MULTIPLEXER

OPA4872-EP
www.ti.com........................................................................................................................................................................................... SBOS444 – DECEMBER 2008
TYPICAL CHARACTERISTICS (continued)
At T_A = +25°C, G = +2 V/V, R_F = 523 Ω, and R_L = 150 Ω, unless otherwise noted.
HARMONIC DISTORTION vs LOAD RESISTANCE
-55
V_O = 2V_PP
-60
f = 5MHz
2nd-Harmonic
-65
-70
-75
-80
-85
-90
100
3rd-Harmonic
dBc = dB Below Carrier
1k
Load Resistance (W)
Figure 7.
HARMONIC DISTORTION vs FREQUENCY
-40
-45
V_O = 2V_PP
R_L = 150W
-50
-55
-60 _2nd-Harmonic
-65
-70
-75
3rd-Harmonic
-80
-85
-90
-95
1
dBc = dB Below Carrier
10
100
Frequency (MHz)
Figure 9.
OUTPUT VOLTAGE AND CURRENT LIMITATIONS
6
1W Internal
5 _{Power Limit}
4
3
100W Load
2
1
0
25W Load
50W Load
-1
-2
1W Internal
-3
Power Limit
-4
-5
-200
-100
0
100
200
300
Output Current (mA)
Figure 11.
HARMONIC DISTORTION vs SUPPLY VOLTAGE
-55
2nd-Harmonic
-60
-65
-70
-75
3rd-Harmonic
-80
-85
V_O = 2V_PP
-90 R_L = 150W
f = 5MHz
-95
2.5 3.0
dBc = dB Below Carrier
3.5 4.0 4.5 5.0 5.5 6.0
Supply Voltage (±V_S)
Figure 8.
HARMONIC DISTORTION vs OUTPUT VOLTAGE
-50
-55
R_L = 150W
f = 5MHz
-60
2nd-Harmonic
-65
-70
-75
3rd-Harmonic
-80
-85
-90
-95
dBc = dB Below Carrier
-100
0.5 1.5 2.5 3.5 4.5 5.5 6.5 7.5
Output Voltage Swing (V_PP)
Figure 10.
DISABLE AND SHUTDOWN FEEDTHROUGH vs
FREQUENCY
-20 _{Input-referred}
-30
-40
-50
Shutdown Feedthrough
-60
-70
-80
Disable Feedthrough
-90
-100
-110
1M
10M
100M
1G
Frequency (Hz)
Figure 12.
Copyright © 2008, Texas Instruments Incorporated
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