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OPA643 Datasheet(PDF) 6 Page - Texas Instruments

Part # OPA643
Description  Wideband, Low Noise, Voltage Feedback OPERATIONAL AMPLIFIER
PDF  16 Pages
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

OPA643 Datasheet(HTML) 6 Page - Texas Instruments

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6
®
OPA686
TYPICAL PERFORMANCE CURVES: VS = ±5V
At TA = +25°C, G = +10, RF = 453Ω, and RL = 100Ω, unless otherwise noted. See Figure 1.
60
50
40
30
20
10
0
R
S vs CAPACITIVE LOAD
Capacitive Load (pF)
1
10
100
50
45
40
35
30
25
20
15
0
TWO-TONE, 3rd-0RDER INTERMODULATION
INTERCEPT vs FREQUENCY
Frequency (MHz)
0
5
10
15
20
25
30
35
40
45
50
OPA686
PI
PO
50
Ω
50
Ω
50
Ω
453
Ω
50
Ω
–50
–60
–70
–80
–90
2nd HARMONIC DISTORTION vs FREQUENCY
Frequency (MHz)
110
20
G = +50
V
O = 2Vp-p
R
L = 100Ω
G = +10
G = +20
–50
–60
–70
–80
–90
3rd HARMONIC DISTORTION vs FREQUENCY
Frequency (MHz)
110
20
G = +10
V
O = 2Vp-p
R
L = 100Ω
G = +50
G = +20
10
1
INPUT VOLTAGE and CURRENT NOISE DENSITY
Frequency (Hz)
100
10M
1k
10k
100k
1M
1.8pA/
√Hz
1.3nV/
√Hz
Current Noise
Voltage Noise
22
21
20
19
18
17
16
15
14
13
12
Frequency (MHz)
FREQUENCY RESPONSE vs CAPACITIVE LOAD
1
100
10
500
C
L = 10pF
C
L = 50pF
C
L = 20pF
C
L = 100pF
OPA686
RS
VIN
VO
CL
1k
Ω
453
Ω
50
Ω
1k
Ω is optional



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