Datasheet

OPA847
9
SBOS251E
www.ti.com
TYPICAL CHARACTERISTICS: V
S
= ±5V
T
A
= 25°C, G
D
= 40V/V, R
G
= 50Ω, and R
L
= 400Ω, unless otherwise noted.
R
F
OPA847
+5V
+5V
DIS
V
O
V
I
R
G
50Ω
R
F
R
L
DIS
OPA847
–5V
–5V
R
G
50Ω
G
D
= =
V
O
V
I
R
F
R
G
3
0
–3
–6
–9
–12
–15
–18
DIFFERENTIAL SMALL-SIGNAL
FREQUENCY RESPONSE
Frequency (MHz)
Normalized Gain (dB)
10 100 1000
G
D
= +30V/V
G
D
= +40V/V
G
D
= +50V/V
G
D
= +20V/V
R
G
= 50Ω
V
O
= 400mV
PP
R
F
Adjusted
35
32
29
26
23
DIFFERENTIAL LARGE-SIGNAL
FREQUENCY RESPONSE
Frequency (MHz)
Gain (dB)
1 10 100 1000
V
O
= 5V
PP
V
O
= 8V
PP
V
O
= 400mV
PP
G
D
= 40V/V
–55
–60
–65
–70
–75
–80
–85
–90
–95
–100
–105
–110
DIFFERENTIAL DISTORTION vs LOAD RESISTANCE
Resistance (Ω)
Harmonic Distortion (dBc)
50 100 150 200 250 300 350 400 450 500
2nd-Harmonic
3rd-Harmonic
G
D
= 40V/V
V
O
= 4V
PP
F = 5MHz
–65
–75
–85
–95
–105
–115
DIFFERENTIAL DISTORTION vs FREQUENCY
Frequency (MHz)
Harmonic Distortion (dBc)
1 10 100
2nd-Harmonic
G
D
= 40V/V
R
L
= 400Ω
V
O
= 4V
PP
3rd-Harmonic
–75
–80
–85
–90
–95
–100
–105
–110
DIFFERENTIAL DISTORTION vs OUTPUT VOLTAGE
Differential Output Voltage Swing (V
PP
)
Harmonic Distortion (dBc)
110
2nd-Harmonic
G
D
= 40V/V
R
L
= 400Ω
F = 5MHz
3rd-Harmonic
DIFFERENTIAL PERFORMANCE TEST CIRCUIT