Datasheet

OPA693
9
SBOS285A
www.ti.com
TYPICAL CHARACTERISTICS: V
S
= ±5V (Cont.)
At T
A
= +25°C, G = +2, and R
L
= 100Ω, unless otherwise specified.
100
10
1
Current Noise (pA/√Hz)
Voltage Noise (nV/√Hz)
100 1k 10k 100k 1M 10M
Frequency (MHz)
INPUT VOLTAGE vs CURRENT NOISE DENSITY
22pA/√Hz
Inverting Current Noise (internal)
Noninverting Current Noise
Voltage Noise
17.8pA/√Hz
1.8nV/√Hz
60
50
40
30
20
2-TONE, 3RD-ORDER
INTERMODULATION INTERCEPT
Frequency (MHz)
0 25 50 75 100 125 150 175 200
Intercept Point (+dBm)
OPA693
50Ω
P
I
+5V
−5V
P
O
50Ω
R
F
300Ω
50Ω
R
G
300Ω
OPA693
P
I
+5V
−5V
P
O
500Ω
R
F
300Ω
50Ω
R
G
300Ω
0
−10
−20
−30
−40
−50
−60
−70
Return Loss (dB)
10 100 1000
Frequency (MHz)
INPUT RETURN LOSS vs FREQUENCY (S
11
)
See Figure 3
See Figure 1
VSWR < 1.2:1
G = −1
G = +2
0
−10
−20
−30
−40
−50
−60
Return Loss (dB)
10 100 1000
Frequency (MHz)
OUTPUT RETURN LOSS vs FREQUENCY (S
22
)
VSWR < 1.2:1
G = +2
See Figure 1
No Output
Trim Capacitor
With
Trim Capacitor
OPA693
50Ω
1.8pF
S
22
60
50
40
30
20
10
0
R
S
(Ω)
1 10 100
Capacitive Load (pF)
RECOMMENDED R
S
vs CAPACITIVE LOAD
G = +2
< 0.1dB Peaking
OPA693
R
S
V
IN
V
O
C
L
1kΩ
300Ω
50Ω
300Ω
1kΩ is optional
9
6
3
0
−3
−6
−9
Gain to Cap. Load (dB)
10 100 1000
Frequency (MHz)
SMALL-SIGNAL FREQUENCY RESPONSE
vs CAPACITIVE LOAD
G = +2
Optimized R
S
C
L
= 100pF C
L
= 10pF
C
L
= 50pF C
L
= 20pF