Datasheet
LTC6400-20
8
640020f
FREQUENCY (MHz)
THIRD ORDER IMD (dBc)
–40
–50
–60
–80
–90
–70
–100
640020 G17
0 50 100 150 200 250 300
UNFILTERED NO R
L
UNFILTERED 200Ω R
L
FILTERED NO R
L
SINGLE-ENDED INPUT
V
OUT
= 2V
P-P
COMPOSITE
FREQUENCY (MHz)
THIRD ORDER IMD (dBc)
–40
–50
–60
–80
–90
–70
–110
–100
640020 G14
UNFILTERED NO R
L
UNFILTERED 200Ω R
L
FILTERED NO R
L
DIFFERENTIAL INPUT
V
OUT
= 2V
P-P
COMPOSITE
0 50 100 150 200 250 300
FREQUENCY (MHz)
HARMONIC DISTORTION (dBc)
–40
–50
–60
–80
–90
–70
–100
640020 G15
HD2 NO R
L
HD2 200Ω R
L
HD3 NO R
L
HD3 200Ω R
L
SINGLE-ENDED INPUT
V
OUT
= 2V
P-P
0 50 100 150 200 250 300
FREQUENCY (MHz)
HARMONIC DISTORTION (dBc)
–40
–50
–60
–80
–90
–70
–100
640020 G16
HD2
HD3
SINGLE-ENDED INPUT
V
OUT
= 2V
P-P
NO R
L
0 50 100 150 200 250 300
TIME (ns)
0
OUTPUT VOLTAGE (V)
2.5
0.5
1.0
2.0
1.5
0
50 100 150
200
640020 G10
–OUT
R
L
= 87.5Ω PER OUTPUT
+OUT
TIME (ns)
0
SETTLING (%)
5
4
3
2
1
–4
–3
–2
–1
–5
0
0.5 1.0 1.5 2.52.0
3.0
640020 G11
R
L
= 87.5Ω PER OUTPUT
TYPICAL PERFORMANCE CHARACTERISTICS
Overdrive Recovery Time
1% Settling Time for 2V
Output Step
Harmonic Distortion (Unfi ltered)
vs Frequency
Harmonic Distortion (Filtered) vs
Frequency
Third Order Intermodulation
Distortion vs Frequency
Harmonic Distortion (Unfi ltered)
vs Frequency
Harmonic Distortion (Filtered) vs
Frequency
Harmonic Distortion vs Output
Common Mode Voltage
(Unfi ltered Outputs)
FREQUENCY (MHz)
050
HARMONIC DISTORTION (dBc)
–40
–50
–60
–80
–90
–70
–100
100 150 200 250 300
640020 G12
HD2 NO R
L
HD2 200Ω R
L
HD3 NO R
L
HD3 200Ω R
L
DIFFERENTIAL INPUT
V
OUT
= 2V
P-P
FREQUENCY (MHz)
HARMONIC DISTORTION (dBc)
–40
–50
–60
–80
–90
–70
–100
640020 G13
HD2
HD3
DIFFERENTIAL INPUT
V
OUT
= 2V
P-P
NO R
L
0 50 100 150 200 250 300
Third Order Intermodulation
Distortion vs Frequency
OUTPUT COMMON MODE VOLTAGE (V)
1.0 1.1 1.2 1.3 1.4
1.5
640020 G18
HD2
HD3
HARMONIC DISTORTION (dBc)
–40
–50
–60
–80
–90
–70
–100
V
OUT
= 2V
P-P
at 100MHz
R
L
= 400Ω