OPA3690_14 Datasheet, PDF (9/39 Pages) Texas Instruments – Triple, Wideband, Voltage-Feedback OPERATIONAL AMPLIFIER

OPA3690
www.ti.com
SBOS237G – MARCH 2002 – REVISED MARCH 2010
TYPICAL CHARACTERISTICS: V_S = ±5V (continued)
At T_A = +25°C, G = +2, R_F = 402Ω, and R_L = 100Ω (see Figure 36 for ac performance only), unless otherwise noted.
INPUT VOLTAGE AND CURRENT
NOISE DENSITY
TWO-TONE, 3RD-ORDER
INTERMODULATION SPURIOUS
100
-30
-35 _50MHz
-40
-45
-50
10
Voltage Noise 5.5nV/ÖHz
-55
-60
20MHz
Current Noise 3.1pA/ÖHz
1
100
1k
10k
100k
1M
10M
Frequency (Hz)
-65
-70
-75
-8
10MHz
Load Power at Matched 50W Load,
see Figure 36
-6 -4 -2 0 2 4 6
Single-Tone Load Power (dBm)
8 10
Figure 13.
Figure 14.
80
70
60
50
40
30
20
10
0
10
RECOMMENDED R_S
vs CAPACITIVE LOAD
100
Capacitive Load (pF)
Figure 15.
1000
FREQUENCY RESPONSE
vs CAPACITIVE LOAD
9
G = +2
6
C_L = 100pF
3
0
-3 VIN
-6
-9
0
1/3
OPA3690
402W
402W
R_S
V_OUT
C_L
1kW
1kW is optional.
20 40 60 80 100
C_L = 10pF
C_L = 22pF
C_L = 47pF
120 140 160 180
200
Frequency (20MHz/div)
Figure 16.
LARGE-SIGNAL
ENABLE/DISABLE RESPONSE
6
4
V_DIS
2
0
2.0
Output Voltage
1.6
1.2
0.8
0.4
G = +2
V_IN = +1V
0
Time (50ns/div)
Figure 17.
DISABLE FEEDTHROUGH
vs FREQUENCY
-35
-40 ^{VDIS = 0}
-45
-50
-55
-60
-65
-70
-75 _Reverse
-80
-85
-90
Forward
-95
100k
1M
10M
Frequency (Hz)
Figure 18.
100M
Copyright © 2002–2010, Texas Instruments Incorporated
Product Folder Link(s): OPA3690
Submit Documentation Feedback
9