Datasheet

LTC6409
7
6409fa
Frequency Response vs Closed
Loop Gain
Frequency Response vs Load
Capacitance
Gain 0.1dB Flatness
Typical perForMance characTerisTics
Harmonic Distortion vs Frequency
Harmonic Distortion vs Output
Common Mode Voltage
Harmonic Distortion vs Input
Amplitude
FREQUENCY (MHz)
6409 G19
DISTORTION (dBc)
V
S
= 5V
V
OCM
= V
ICM
= 1.25V
R
LOAD
= 400Ω
R
I
= R
F
= 150Ω
V
OUTDIFF
= 2V
P-P
DIFFERENTIAL INPUTS
–50
–60
–70
–80
–90
–120
–110
–100
1 1000 10010
HD2
HD3
OUTPUT COMMON MODE VOLTAGE (V)
6409 G20
DISTORTION (dBc)
–30
–40
–50
–60
–70
–80
–90
–110
–100
0.5 3.532.521.51
V
S
= 5V
f
IN
= 100MHz
R
LOAD
= 400Ω
R
I
= R
F
= 150Ω
V
OUTDIFF
= 2V
P-P
DIFFERENTIAL INPUTS
HD2
HD3
INPUT AMPLITUDE (dBm)
6409 G21
DISTORTION (dBc)
–80
–90
–120
–110
–100
–4
(0.4V
P-P
)
–2 10
(2V
P-P
)
86420
V
S
= 5V
V
OCM
= V
ICM
= 1.25V
f
IN
= 100MHz
R
LOAD
= 400Ω
R
I
= R
F
= 150Ω
DIFFERENTIAL INPUTS
HD2
HD3
1 10010 1000 10000
FREQUENCY (MHz)
6409 G15
GAIN (dB)
V
S
= 5V
V
OCM
= V
ICM
= 1.25V
R
LOAD
= 400Ω
60
50
40
30
20
10
0
–30
–20
–10
A
V
= 1
A
V
= 2
A
V
= 5
A
V
= 10
A
V
= 20
A
V
= 100
A
V
= 400
A
V
(V/V) C
F
(pF)R
I
(Ω) R
F
(Ω)
1
2
5
10
20
100
400
150
100
50
50
25
25
25
150
200
250
500
500
2.5k
10k
1.3
1
0.8
0.4
0.4
0
0
10 1000100 10000
FREQUENCY (MHz)
6409 G16
GAIN (dB)
20
10
0
–30
–20
–10
V
S
= 5V
V
OCM
= V
ICM
= 1.25V
R
LOAD
= 400Ω
R
I
= R
F
= 150Ω, C
F
= 1.3pF
CAPACITOR VALUES ARE FROM
EACH OUTPUT TO GROUND.
NO SERIES RESISTORS ARE USED.
C
L
= 0pF
C
L
= 0.5pF
C
L
= 1pF
C
L
= 1.5pF
C
L
= 2pF
1 10010 1000 10000
FREQUENCY (MHz)
6409 G17
GAIN (dB)
0.5
0.1
0.2
0.3
0.4
0
–0.5
–0.4
–0.3
–0.2
–0.1
V
S
= 5V
V
OCM
= V
ICM
= 1.25V
R
LOAD
= 400Ω
R
I
= R
F
= 150Ω, C
F
= 1.3pF
Slew Rate vs Temperature
–50 50 125100–25 0 25 75
TEMPERATURE (°C)
6409 G08
SLEW RATE (V/µs)
V
S
= 5V
3400
3200
3225
3250
3275
3300
3325
3350
3375