OPA2673 Datasheet, PDF (6/40 Pages) Texas Instruments – Dual, Wideband, High Output Current Operational Amplifier with Active Off-Line Control

OPA2673
SBOS382A – JUNE 2008 – REVISED OCTOBER 2008..................................................................................................................................................... www.ti.com
TYPICAL CHARACTERISTICS: V_S = ±6V, Full Bias
At T_A = +25°C, G = +4V/V, R_F = 402Ω, and R_L = 100Ω, unless otherwise specified.
SMALL-SIGNAL FREQUENCY RESPONSE
3
0
-3
G = +4V/V
R_F = 402W
-6
G = +2V/V
R_F = 475W
-9
G = +1V/V
-12
R_F = 511W
-15 V_O = 500mV_PP
R_L = 100W
-18
10M
100M
G = +8V/V
R_F = 250W
1G
Frequency (Hz)
Figure 1.
LARGE-SIGNAL FREQUENCY RESPONSE
3
0
-3
V_O = 2V_PP
-6
V_O = 8V_PP
-9
V_O = 5V_PP
-12
V_O = 1V_PP
-15 _{G = +4V/V}
R_L = 100W
-18
0 100 200 300 400 500 600 700 800 900 1000
Frequency (MHz)
Figure 3.
CHANNEL-TO-CHANNEL CROSSTALK
-40
Input-Referred
-45
-50
-55
-60
-65
-70
-75
-80
1
10
100
Frequency (MHz)
Figure 5.
SMALL-SIGNAL FREQUENCY RESPONSE
OVER POWER SETTINGS
3
0
-3
Full Power
-6
50% Bias
-9
75% Bias
-12
G = +4V/V
-15 R_L = 100W
V_O = 500mV_PP
-18
0 100 200 300 400 500 600 700 800 900 1000
Frequency (MHz)
Figure 2.
SMALL-SIGNAL AND
LARGE-SIGNAL PULSE RESPONSES
3
300
2
200
1
100
0
-1
-2
G = +4V/V
R_L = 100W
-3
Small Signal ±100mV_P
Right Scale
Large Signal ±2.5V_P
Left Scale
Time (10ns/div)
0
-100
-200
-300
Figure 4.
OUTPUT VOLTAGE AND CURRENT LIMITATIONS
6
4
2W Internal
Power Dissipation
Single Channel
2
50W
Load Line
0
10W Load Line
100W Load Line
-2
-4
-6
-800
25W Load Line
2W Internal
Power Dissipation
Single Channel
-600 -400 -200 0 200 400 600 800
Output Current (mA)
Figure 6.
6
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