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OPA843 Datasheet(PDF) 11 Page - Texas Instruments

Part # OPA843
Description  Dual, Wideband, Low-Noise, Voltage-Feedback Operational Amplifier
PDF  32 Pages
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Manufacturer  TI2 [Texas Instruments]
Direct Link  https://www.ti.com
Logo TI2 - Texas Instruments

OPA843 Datasheet(HTML) 11 Page - Texas Instruments

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OPA2846
SBOS274C −JUNE 2003 − REVISED AUGUST 2008
www.ti.com
11
TYPICAL CHARACTERISTICS: VS = ±5V, DIFFERENTIAL CONFIGURATION
TA = 25°C, G = +10, RF = 1kΩ, RG = 50Ω, and RL = 400Ω, unless otherwise noted.
DIFFERENTIAL PERFORMANCE TEST CIRCUIT
RF
1k
Ω
OPA2846
+5V
VO
VI
RG
50
Ω
RF
1k
Ω
RL
400
Ω
OPA2846
−5V
RG
50
Ω
Gain =
=GD
=
RF
RG
VO
VI
29
26
23
20
17
14
DIFFERENTIAL LARGE−SIGNAL
FREQUENCY RESPONSE
Frequency (MHz)
1
10
100
300
V
O =5VPP
V
O =8VPP
V
O =0.4VPP
G
D =+20V/V
R
L =400Ω
−65
−75
−85
−95
−105
−115
DIFFERENTIAL DISTORTION vs FREQUENCY
Frequency (MHz)
110
100
2nd−Harmonic
G
D =+20V/V
R
L =400Ω
V
O =4VPP
3rd−Harmonic
3
0
−3
−6
−9
−12
−15
−18
DIFFERENTIAL SMALL−SIGNAL
FREQUENCY RESPONSE
Frequency (MHz)
110
100
500
G
D =+30V/V
G
D =+40V/V
G
D =+10V/V
G
D =+20V/V
R
L =400Ω
V
O =400mVPP
−55
−60
−65
−70
−75
−80
−85
−90
−95
−100
−105
−110
−115
DIFFERENTIAL DISTORTION vs LOAD RESISTANCE
Resistance (
Ω )
50
100
150
200
250
300
350
400
450
500
2nd−Harmonic
3rd−Harmonic
V
O =4VPP
G= 20V/V
−75
−80
−85
−90
−95
−100
−105
−110
−115
DIFFERENTIAL DISTORTION vs OUTPUT VOLTAGE
Output Voltage Swing (V
PP)
110
2nd−Harmonic
G= +20V/V
f=5MHz
R
L = 400Ω
3rd−Harmonic



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