Datasheet

LTC6406
9
6406fc
TYPICAL PERFORMANCE CHARACTERISTICS
(MSOP Package)
Frequency Response
vs Closed-Loop Gain
Frequency Response
vs Load Capacitance
Frequency Response vs Input
Common Mode Voltage
Harmonic Distortion vs Frequency
Harmonic Distortion
vs Input Common Mode Voltage
Harmonic Distortion
vs Input Amplitude
FREQUENCY (MHz)
GAIN (dB)
6406 G28
50
40
30
20
10
0
–40
–30
–20
–10
–50
1 100 1000 200010
V
S
= 3V
V
OCM
= V
ICM
= 1.25V
R
LOAD
= 400Ω
A
V
= 1
A
V
= 2
A
V
= 5
A
V
= 10
A
V
= 20
A
V
= 100
A
V
(V/V) C
F
(pF)R
I
(Ω) R
F
(Ω)
1
2
5
10
20
100
150
150
150
150
150
150
150
300
750
1.5k
3k
15k
2.2
2.2
0.9
0.4
0.2
0
FREQUENCY (MHz)
GAIN (dB)
6406 G29
30
20
10
0
–10
–50
–40
–30
–20
–60
1 100 1000 200010
V
S
= 3V
V
OCM
= V
ICM
= 1.25V
R
LOAD
= 400Ω
R
I
= R
F
= 150Ω, C
F
= 2.2pF
CAPACITOR VALUES ARE FROM
EACH OUTPUT TO GROUND.
NO SERIES RESISTORS ARE USED.
C
L
= 0pF
C
L
= 2pF
C
L
= 3pF
C
L
= 4.7pF
C
L
= 10pF
FREQUENCY (MHz)
GAIN (dB)
6406 G30
10
5
0
–5
–10
–30
–25
–20
–15
–35
1 100 1000 200010
V
S
= 3V
V
OCM
= 1.25V
R
LOAD
= 400Ω
R
I
= R
F
= 150Ω, C
F
= 2.2pF
V
ICM
= 0V
V
ICM
= 0.5V
V
ICM
= 1.25V
V
ICM
= 2V
V
ICM
= 3V
FREQUENCY (MHz)
DISTORTION (dBc)
6406 G31
–30
–40
–50
–60
–70
–80
–90
–100
–110
10 10 100
V
S
= 3V
V
OCM
= V
ICM
= 1.25V
R
LOAD
= 800Ω
V
OUTDIFF
= 2V
P-P
DIFFERENTIAL INPUTS
2ND, R
I
= R
F
= 150Ω
2ND, R
I
= R
F
= 500Ω
3RD, R
I
= R
F
= 150Ω
3RD, R
I
= R
F
= 500Ω
INPUT COMMON MODE VOLTAGE (V)
6406 G32
DISTORTION (dBc)
–40
–50
–60
–70
–80
–90
–100
0 3.02.52.01.51.00.5
V
S
= 3V
V
OCM
= 1.25V
f
IN
= 50MHz
R
LOAD
= 800Ω
V
OUTDIFF
= 2V
P-P
DIFFERENTIAL INPUTS
2ND, R
I
= R
F
= 150Ω
2ND, R
I
= R
F
= 500Ω
3RD, R
I
= R
F
= 150Ω
3RD, R
I
= R
F
= 500Ω
INPUT AMPLITUDE (dBm)
6406 G33
DISTORTION (dBc)
–40
–50
–60
–70
–80
–90
–100
–4 1086420–2
V
S
= 3V
V
OCM
= V
ICM
= 1.25V
f
IN
= 50MHz
R
LOAD
= 800Ω
R
I
= R
F
= 150Ω
DIFFERENTIAL INPUTS
2ND
3RD
(0.4V
P-P
) (2V
P-P
)