Datasheet

OPA2684
13
SBOS239D
www.ti.com
TYPICAL CHARACTERISTICS: V
S
= +5V (Cont.)
At T
A
= +25°C, V
S
= 5V, G = +2, R
F
= 1.0Ω, and R
L
= 100Ω, unless otherwise noted.
1/2
OPA2684
1/2
OPA2684
0.01µF
0.01µF
R
G
R
G
R
L
1kΩ
1kΩ
+5V
+2.5V
+2.5V
V
O
V
I
G
D
=
1kΩ
R
G
6
3
0
–3
–6
–9
–12
–15
–18
–21
–24
Frequency (MHz)
1 20010 100
DIFFERENTIAL SMALL-SIGNAL
FREQUENCY RESPONSE
Normalized Gain (dB)
V
O
= 200mVp-p
R
L
= 100Ω
G = 2
G = 20
G = 10
G = 5
G = 1
9
6
3
0
–3
–6
–9
–12
–15
–18
Frequency (MHz)
1 20010 100
DIFFERENTIAL LARGE-SIGNAL
FREQUENCY RESPONSE
Normalized Gain (dB)
G
D
= 2
R
L
= 100Ω
V
O
= 5Vp-p
V
O
= 2Vp-p
V
O
= 1Vp-p
V
O
= 200mVp-p
–55
–60
–65
–70
–75
–80
–85
Load Resistance (Ω)
10 1k100
DIFFERENTIAL DISTORTION
vs LOAD RESISTANCE
Harmonic Distortion (dBc)
V
O
= 4Vp-p
G
D
= 2
f = 5MHz
3rd-Harmonic
2nd-Harmonic
–55
–60
–65
–70
–75
–80
–85
DIFFERENTIAL DISTORTION vs FREQUENCY
Frequency (MHz)
110
Harmonic Distortion (dBc)
3rd-Harmonic
2nd-Harmonic
V
O
= 2Vp-p
R
L
= 100Ω
–55
–60
–65
–70
–75
–80
–85
DIFFERENTIAL DISTORTION vs OUTPUT VOLTAGE
Output Voltage (Vp-p)
110
Harmonic Distortion (dBc)
3rd-Harmonic
2nd-Harmonic
DIFFERENTIAL PERFORMANCE
TEST CIRCUIT