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OPA3682 Datasheet, PDF (9/20 Pages) Burr-Brown (TI) – Triple, Wideband, Fixed Gain BUFFER AMPLIFIER With Disable | |||
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TYPICAL PERFORMANCE CURVES: VS = ±5V (Cont.)
G = +2 and RL = 100â¦, unless otherwise noted (see Figure 1).
2nd HARMONIC DISTORTION vs FREQUENCY
â50
VO = 2Vp-p
RL = 100â¦
â60
G = â1
G = +2
G = +1
â70
â80
â90
0.1
1
Frequency (MHz)
10 20
3rd HARMONIC DISTORTION vs FREQUENCY
â50
VO = 2Vp-p
RL = 100â¦
â60
G = +2
G = +1
G = â1
â70
â80
â90
0.1
1
Frequency (MHz)
10 20
INPUT VOLTAGE AND CURRENT NOISE DENSITY
vs FREQUENCY
100
Inverting Input Current Noise
15pA/âHz
10
Non-Inverting Input Current Noise
12pA/âHz
1
100
Voltage Noise
2.2nV/âHz
1k
10k
100k
1M
10M
Frequency (Hz)
TWO-TONE, 3rd-ORDER
INTERMODULATION SPURIOUS
â40
â45 dBc = dB Below Carriers
â50
50MHz
â55
â60
â65
â70
20MHz
â75
â80
â85
10MHz
Load Power at Matched 50⦠Load
â90
â8 â6 â4 â2 0 2 4 6 8 10
Single-Tone Load Power (dBm)
60
50
40
30
20
10
0
1
RECOMMENDED RS vs CAPACITIVE LOAD
10
100
Capacitive Load (pF)
FREQUENCY RESPONSE vs CAPACITIVE LOAD
15
12
9
CL = 10pF
6
3
0
â3 VIN
â6
â9
â12
â15
0
CL = 47pF
OPA3682
400â¦
400â¦
RS
VO
CL 1kâ¦
1k⦠is optional. CL = 100pF
150MHz
Frequency (30MHz/div)
CL = 22pF
300MHz
®
9
OPA3682
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