OPA2889 Datasheet, PDF (13/35 Pages) Burr-Brown (TI) – Dual, Low-Power, Wideband, Voltage Feedback OPERATIONAL AMPLIFIER with Disable

OPA2889
www.ti.com
SBOS373 – JUNE 2007
TYPICAL CHARACTERISTICS: V_S = +5V
At T_A = +25°C, G = +2V/V, R_F = 750Ω, and R_L = 100Ω, unless otherwise noted. See Figure 51.
NONINVERTING SMALL-SIGNAL FREQUENCY
RESPONSE
3
G = +1V/V, R_F = 0W
0
-3
-6
-9
-12
-15
V_O = 0.1V_PP
-18
100k
G = +2V/V
G = +5V/V
G = +10V/V
1M
10M
Frequency (Hz)
Figure 33.
100M 200M
NONINVERTING LARGE-SIGNAL FREQUENCY
RESPONSE
9
V_O = 1V_PP
6
3
0
-3
-6
R_L = 100W
G = +2V/V
-9
1
V_O = 0.5V_PP
V_O = 2V_PP
V_O = 3V_PP
10
Frequency (MHz)
Figure 34.
100 200
SMALL-SIGNAL PULSE RESPONSE
2.65
2.60
V_O = 0.2V_PP
G = +2V/V
LARGE-SIGNAL PULSE RESPONSE
4.0
V_O = 2V_PP
G = +2V/V
3.5
2.55
3.0
2.50
2.5
2.45
2.0
2.40
1.5
2.35
Time (10ns/div)
Figure 35.
1.0
Time (10ns/div)
Figure 36.
RECOMMENDED R_S vs CAPACITIVE LOAD
100
10
1
1
10
100
1000
Capacitive Load (pF)
Figure 37.
FREQUENCY RESPONSE vs CAPACITIVE LOAD
9
6
3
C_L = 100pF
0
-3
C_L = 47pF
C_L = 10pF
C_L = 22pF
-6
-9
-12
VIN
1/2
OPA2889
750W
RS
CL
VOUT
1kW⁽¹⁾
750W
NOTE: (1) 1kW is optional.
-15
0
20
40
60
80 100
Frequency (MHz)
120
140
Figure 38.
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