OPA2690 Datasheet, PDF (11/30 Pages) Burr-Brown (TI) – Dual, Wideband, Voltage-Feedback OPERATIONAL AMPLIFIER with Disable

OPA2690
www.ti.com
SBOS238D − JUNE 2002 − REVISED DECEMBER 2004
TYPICAL CHARACTERISTICS: V_S = +5V
At TA = +25°C, G = +2, RF = 402Ω, and RL = 100Ω (see Figure 2 for AC performance only), unless otherwise noted.
SMALL−SIGNAL FREQUENCY RESPONSE
6
V_O = 0.5V_PP
G = +1
R_F = 25Ω
3
G = +2
0
G = +5
−3
G = +10
−6
−9
0.7 1
10
100
700
Frequency (Hz)
LARGE−SIGNAL FREQUENCY RESPONSE
9
V_O = 2V_PP
6
V_O = 3V_PP
3
V_O = 1V_PP
0
−3
−6
0.5 1
10
100
500
Frequency (MHz)
SMALL−SIGNAL PULSE RESPONSE
2.9
G = +2
2.8
V_O = 0.5V_PP
2.7
2.6
2.5
2.4
2.3
2.2
2.1
Time (5ns/div)
LARGE−SIGNAL PULSE RESPONSE
4.1
G = +2
3.7
V_O = 2V_PP
3.3
2.9
2.5
2.1
1.7
1.3
0.9
Time (5ns/div)
50
45
40
35
30
25
20
15
10
5
0
1
RECOMMENDED R_S vs CAPACITIVE LOAD
10
100
Capacitive Load (pF)
1000
FREQUENCY RESPONSE vs CAPACITIVE LOAD
9
C_L = 10pF
6
C_L = 100pF
3
0
+5V
−3
VIN ^0.1µF
5 8Ω
714Ω
7 14Ω
1/2
714Ω _{O PA 2 69 0}
−6
402Ω +5V
RS _VOUT
CL
C_L = 22pF
C_L = 47pF
4 02 Ω
−9
0 20 40 60 80 100 120 140 160 180 200
Frequency (20MHz/div)
11