Datasheet

LTC6404
9
6404f
Small-Signal Frequency Response
vs Gain Setting Resistor Values
and Supply Voltage
Small-Signal Frequency
Response vs C
LOAD
Small-Signal Frequency
Response vs Temperature
Small-Signal Frequency
Response vs Temperature Large-Signal Step Response Small-Signal Step Response
Distortion vs Frequency
Distortion vs Input Common Mode
Voltage
FREQUENCY (MHz)
10
GAIN (dB)
100 1000
64041 G10
–30
–20
–25
–15
–10
–5
0
5
UNFILTERED OUTPUTS
V
CM
= V
OCM
= MID-SUPPLY
T
A
= 25°C
V
S
= 3V AND V
S
= 5V
R
F
= R
I
= 499
R
F
= R
I
= 200
R
F
= R
I
= 100
V
S
= 3V
V
S
= 5V
FREQUENCY (MHz)
10
GAIN (dB)
100 1000
64041 G11
–20
–15
–10
–5
0
10
5
UNFILTERED OUTPUTS
V
CM
= V
OCM
= MID-SUPPLY
T
A
= 25°C
R
F
= R
I
= 100
V
S
= 3V AND V
S
= 5V
R
LOAD
= 200,
(EACH OUTPUT TO GROUND)
C
LOAD
= 0pF
C
LOAD
= 10pF
C
LOAD
= 5pF
FREQUENCY (MHz)
10
GAIN (dB)
100 1000
64041 G12
–20
–15
–10
–5
0
10
5
UNFILTERED OUTPUTS
V
CM
= V
OCM
= MID-SUPPLY
R
F
= R
I
= 100
V
S
= 3V AND V
S
= 5V
T
A
= 90°C
T
A
= –45°C
T
A
= 25°C
FREQUENCY (MHz)
10
GAIN (dB)
100 1000
64041 G13
–35
–30
–20
–25
–15
–10
–5
0
5
FILTERED
DIFFERENTIAL
OUTPUT
UNFILTERED DIFFERENTIAL
OUTPUT
T
A
= 25°C
T
A
= 25°C
T
A
= 90°C
FILTERED OUTPUT
V
CM
= V
OCM
= MID-SUPPLY
R
F
= R
I
= 100
V
S
= 3V AND V
S
= 5V
T
A
= –45°C
TIME (ns)
0
–1.5
V
OUTDIFF
(OUT
+
– OUT
–
) (V)
–1.0
–0.5
0
61215
64041 G14
0.5
1.0
1.5
39
V
CM
= V
OCM
= MID-SUPPLY
R
F
= R
I
= 100
V
OUTDIFF
V
INDIFF
TIME (ns)
0
–0.50
V
OUTDIFF
(OUT
+
– OUT
–
) (V)
–0.25
0
0.25
61215
64041 G15
0.50
39
V
CM
= V
OCM
= MID-SUPPLY
R
F
= R
I
= 100
V
OUTDIFF
V
INDIFF
FREQUENCY (MHz)
0.1
–80
HD2, HD3 (dBc)
–60
–40
1.0 10 100
64041 G16
–100
–90
–70
–50
–110
–120
V
CM
= V
OCM
= MID-SUPPLY
V
S
= 3V
V
OUTDIFF
= 2V
P-P
R
F
= R
I
= 100
DIFFERENTIAL INPUT
SINGLE-ENDED INPUT
HD2
HD2
HD3
HD3
HD2, HD3 (dBc)
64041 G17
HD2
HD2
HD3
HD3
DC COMMON MODE INPUT (AT IN
+
AND IN
–
PINS) (V)
–110
–40
–50
–60
–70
–80
–90
–100
V
S
= 3V
R
F
= R
I
= 100
V
IN
= 2V
P-P
f
IN
= 10MHz
DIFFERENTIAL
INPUT
SINGLE-ENDED
INPUT
0 1.50.5 2.5 3.01.0 2.0
Distortion vs Output Amplitude
HD2, HD3 (dBc)
64041 G18
HD2
HD3
V
OUTDIFF
(V
P-P
)
–110
–30
–40
–50
–60
–70
–80
–90
–100
V
CM
= V
OCM
= MID-SUPPLY
V
S
= 3V
T
A
= 25oC
C
F
= 0pF
R
F
= R
I
= 1007
V
IN
= FULLY DIFFERENTIAL INPUT
f
IN
= 10MHz
0315624
LTC6404-1 TYPICAL PERFORMANCE CHARACTERISTICS