Datasheet

LTC6404
12
6404f
Small-Signal Frequency Response
vs Gain Setting Resistor Values
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 Distortion vs Output Amplitude
LTC6404-2 TYPICAL PERFORMANCE CHARACTERISTICS
FREQUENCY (MHz)
10
GAIN (dB)
100 1000
64042 G10
–25
–10
–20
–5
0
5
10
15
UNFILTERED OUTPUTS
V
CM
= V
OCM
= MID-SUPPLY
T
A
= 25°C
V
S
= 3V AND V
S
= 5V
R
I
= 100Ω, R
F
= 200Ω
R
I
= 499Ω, R
F
= 1k
R
I
= 200Ω, R
F
= 402Ω
V
S
= 3V
V
S
= 5V
FREQUENCY (MHz)
10
GAIN (dB)
100 1000
64042 G11
–15
–10
–5
0
5
25
10
15
20
C
LOAD
= 0pF
C
LOAD
= 5pF
C
LOAD
= 10pF
UNFILTERED OUTPUTS
V
CM
= V
OCM
= MID-SUPPLY
T
A
= 25°C
R
I
= 100Ω, R
F
= 200Ω
V
S
= 3V AND V
S
= 5V
R
LOAD
= 200Ω,
(EACH OUTPUT TO GROUND)
FREQUENCY (MHz)
10
GAIN (dB)
100 1000
64042 G12
–15
–10
–5
0
5
15
10
UNFILTERED OUTPUTS
V
CM
= V
OCM
= MID-SUPPLY
T
A
= 25°C
R
I
= 100Ω, R
F
= 200Ω
V
S
= 3V AND V
S
= 5V
R
LOAD
= 200Ω,
(EACH OUTPUT TO GROUND)
T
A
= 90°C
T
A
= 25°C
T
A
= –45°C
FREQUENCY (MHz)
10
FILTERED GAIN (dB)
100 1000
64042 G13
–30
–20
–25
–10
–15
–5
0
5
10
15
T
A
= 25°C
T
A
= 90°C
V
CM
= V
OCM
= MID-SUPPLY
R
I
= 100Ω, R
F
= 200Ω
V
S
= 3V
T
A
= –45°C
UNFILTERED DIFFERENTIAL
OUTPUT
T
A
= 25°C
FILTERED
DIFFERENTIAL
OUTPUT
TIME (ns)
0
–1.5
V
OUTDIFF
(OUT
+
– OUT
–
) (V)
–1.0
–0.5
0
61215
64042 G14
0.5
1.0
1.5
39
V
CM
= V
OCM
= MID-SUPPLY
R
I
= 100Ω, R
F
= 200Ω
V
OUTDIFF
V
INDIFF
TIME (ns)
0
–1.00
V
OUTDIFF
(OUT
+
– OUT
–
) (V)
–0.75
–0.50
–0.25
0
0.25
0.50
0.75
61215
64042 G15
1.00
39
V
CM
= V
OCM
= MID-SUPPLY
R
I
= 100Ω, R
F
= 200Ω
V
OUTDIFF
V
INDIFF
FREQUENCY (MHz)
0.1
–100
HD2, HD3 (dBc)
–90
–80
–70
–60
1 10 100
64042 G16
–110
–120
–130
–140
–50
–40
V
CM
= V
OCM
= MID-SUPPLY
V
S
= 3V
V
OUTDIFF
= 2V
P-P
R
F
= 100, R
I
= 200
DIFFERENTIAL INPUT
SINGLE-ENDED INPUT
HD2
HD2
HD3
HD3
HD2, HD3 (dBc)
64042 G17
HD2
HD2
HD3
DC COMMON MODE INPUT (AT IN
+
AND IN
–
PINS) (V)
–110
–40
–50
–60
–70
–80
–90
–100
V
S
= 3V
V
CM
= V
OCM
= MID-SUPPLY
R
I
= 100Ω, R
F
= 200Ω
V
IN
= 1V
P-P
f
IN
= 10MHz
DIFFERENTIAL INPUT
SINGLE-ENDED INPUT
0 1.50.5 2.51.0 2.0
HD3
HD2, HD3 (dBc)
64042 G18
HD2
HD3
V
OUTDIFF
(V
P-P
)
–120
–40
–50
–60
–70
–80
–90
–100
–110
V
S
= 3V
V
CM
= V
OCM
= MID-SUPPLY
R
I
= 100Ω, R
F
= 200Ω
V
IN
= DIFFERENTIAL INPUT
f
IN
= 10MHz
0315624