Datasheet

OPA846
9
SBOS250E
www.ti.com
TYPICAL CHARACTERISTICS: V
S
= ±5V
T
A
= 25°C, G
D
= 20, R
G
= 50Ω, and R
L
= 400Ω, unless otherwise noted.
R
F
1kΩ
OPA846
+5V
V
O
V
I
R
G
50Ω
R
F
1kΩ
R
L
400Ω
OPA846
–5V
R
G
50Ω
Gain = = G
D
=
R
F
R
G
V
O
V
I
3
0
–3
–6
–9
–12
–15
–18
DIFFERENTIAL SMALL-SIGNAL
FREQUENCY RESPONSE
Frequency (Hz)
Normalized Gain (dB)
1 10 100 1k
G
D
= 30V/V
G
D
= 40V/V
G
D
= 10V/V
G
D
= 20V/V
29
26
23
20
17
14
DIFFERENTIAL LARGE-SIGNAL
FREQUENCY RESPONSE
Frequency (Hz)
Gain (dB)
1 10 100 1k
V
O
= 5V
PP
V
O
= 8V
PP
V
O
= 400mV
PP
G
D
= 20V/V
–60
–65
–70
–75
–80
–85
–90
–95
–100
–105
–110
–115
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
= 20V/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
= 20V/V
R
L
= 400Ω
V
O
= 4V
PP
3rd-Harmonic
–80
–85
–90
–95
–100
–105
–110
–115
DIFFERENTIAL DISTORTION vs OUTPUT VOLTAGE
Output Voltage Swing (V
PP
)
Harmonic Distortion (dBc)
110
2nd-Harmonic
G
D
= 20V/V
R
L
= 400Ω
F = 5MHz
3rd-Harmonic
DIFFERENTIAL PERFORMANCE TEST CIRCUIT