OPA2673 Datasheet, PDF (10/40 Pages) Texas Instruments – Dual, Wideband, High Output Current Operational Amplifier with Active Off-Line Control

OPA2673
SBOS382 – JUNE 2008...................................................................................................................................................................................................... www.ti.com
TYPICAL CHARACTERISTICS: V_S = ±6V Differential, Full Bias
At T_A = +25°C, R_F = 511Ω, R_L = 100Ω Differential, G_DIFF = +4V/V, and G_CM = +1V/V, unless otherwise specified.
SMALL-SIGNAL FREQUENCY RESPONSE
3
G_DIFF = +1V/V
0
G_DIFF =
-3
+2V/V
G_DIFF = +4V/V
-6
G_DIFF = +8V/V
-9
-12
G_CM = +1V/V
-15 V_O = 500mV_PP
R_L = 100W Differential
-18
10M
100M
1G
Frequency (Hz)
Figure 23.
LARGE-SIGNAL FREQUENCY RESPONSE
3
0
-3
V_O = 16V_PP
-6
V_O = 8V_PP
-9
V_O = 4V_PP
-12
G_DIF = +4V/V
-15 G_CM = +1V/V
R_L = 100W Differential
-18
0 100 200 300 400 500 600 700
Frequency (MHz)
Figure 25.
DIFFERENTIAL R_S vs CAPACITIVE LOAD
20
10
1
1
10
100
1000
Capacitance (pF)
Figure 27.
SMALL-SIGNAL FREQUENCY RESPONSE
OVER POWER SETTING
3
0
-3
Full Bias
-6
50% Bias
-9
75% Bias
-12 G_DIFF = +4V/V
G_CM = +1V/V
-15 _{RL = 100W Differential}
V_O = 500mV_PP
-18
0 100 200 300 400 500 600 700
Frequency (MHz)
Figure 24.
SMALL-SIGNAL AND
LARGE-SIGNAL PULSE RESPONSES
5
1.0
4
0.8
Large-Signal ±4V_P
3
Left Scale
0.6
2
0.4
1
0.2
0
0
-1
Small-Signal ±0.5V_P
-0.2
-2
Right Scale
-0.4
-3
-0.6
-4
-0.8
-5
-1.0
Time (10ns/div)
Figure 26.
FREQUENCY RESPONSE vs CAPACITIVE LOAD
15
C_L = 10pF
12
C_L = 100pF
C_L =
22pF
9
R_S
OPA2673
C_L = 47pF
6
V_IN
3
C_L 1kW
V_OUT
(optional)
R_S
OPA2673
0
10M
100M
Frequency (Hz)
Figure 28.
500M
10
Submit Documentation Feedback
Product Folder Link(s): OPA2673
Copyright © 2008, Texas Instruments Incorporated