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OPA2830 Datasheet, PDF (21/43 Pages) National Semiconductor (TI) – Dual, Low-Power, Single-Supply, Wideband OPERATIONAL AMPLIFIER | |||
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OPA2830
www.ti.com.................................................................................................................................................. SBOS309D â AUGUST 2004 â REVISED AUGUST 2008
TYPICAL CHARACTERISTICS: VS = +3V, Differential Configuration
At TA = +25°C, RF = 604â¦, and RL = 500⦠differential (as shown in Figure 64), unless otherwise noted.
+3V
2k⦠1V
1kâ¦
1/2
0.1µF OPA2830
R
G
604â¦
V
I
R
G
604â¦
RV
L
O
1/2
OPA2830
1V
Figure 64.
GD
=
604â¦
RG
DIFFERENTIAL LARGE-SIGNAL FREQUENCY RESPONSE
9
6
3
0
â3
â6
GD = 2
â9
1
VO = 2VPP
VO = 1VPP
VO = 200mVPP
10
Frequency (MHz)
Figure 66.
100 200
DIFFERENTIAL DISTORTION vs FREQUENCY
â35
GD = 2
â45 VO = 2VPP
RL = 500â¦
â55
â65
3rdâHarmonic
â75
â85
â95
â105
2ndâHarmonic
â115
0.1
1
10
100
Frequency (MHz)
Figure 68.
DIFFERENTIAL SMALL-SIGNAL FREQUENCY RESPONSE
3
0
â3
â6
â9
â12 VO = 200mVPP
RL = 500â¦
â15
1
GD = 5
GD = 10
10
Frequency (MHz)
GD = 1
GD = 2
100 200
Figure 65.
DIFFERENTIAL DISTORTION vs LOAD RESISTANCE
â40
â45
â50
â55
â60 GD = 2
â65
VO = 4VPP
f = 5MHz
â70
3rdâHarmonic
â75
â80
2ndâHarmonic
â85
â90
100 150 200 250 300 350 400 450 500
Resistance (⦠)
Figure 67.
DIFFERENTIAL DISTORTION vs OUTPUT VOLTAGE
â75
GD = 2
â80 RL = 500â¦
f = 5MHz
3rdâHarmonic
â85
2ndâHarmonic
â90
â95
â100
0.50 0.75 1.00 1.25 1.50 1.75 2.00
Output Voltage Swing (VPP)
Figure 69.
Copyright © 2004â2008, Texas Instruments Incorporated
Product Folder Link(s): OPA2830
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