Datasheet

LT6555
5
6555f
TYPICAL PERFOR A CE CHARACTERISTICS
UW
Frequency Response
vs Output Amplitude
Gain Flatness vs Frequency
Crosstalk vs Frequency
Frequency Response with
Capacitive Loads
Harmonic Distortion vs Frequency
Input Noise Spectral Density Input Impedance vs Frequency
Input Referred PSRR
vs Frequency
FREQUENCY (kHz)
0.001 0.01 0.1 1 10
1
INPUT NOISE VOLTAGE (nV/Hz OR pA/Hz)
10
100
i
n
1000
100
6555 G10
V
S
= ±5V
T
A
= 25°C
e
n
6555 G11
FREQUENCY (MHz)
INPUT IMPEDANCE (k)
0.01 0.1 10 100 10001
1000
100
10
1
0.1
V
S
= ±5V
V
IN
= 0V
T
A
= 25°C
FREQUENCY (MHz)
20
POWER SUPPLY REJECTION RATIO (dB)
40
70
10
30
50
60
0.001 0.1 1 10 100
6555 G12
0
0.01
±PSRR
+PSRR
–PSRR
V
S
= ±5V
T
A
= 25°C
FREQUENCY (MHz)
2
GAIN (dB)
4
5
7
9
8
0.1 10 100 1000
6555 G13
0
1
6
3
1
V
S
= ±5V
R
L
= 150
T
A
= 25°C
V
OUT
= 2V
P-P
V
OUT
= 4V
P-P
V
OUT
= 200mV
P-P
FREQUENCY (MHz)
6.00
NORMALIZED GAIN (dB)
6.10
6.20
5.95
6.05
6.15
0.1 10 100 1000
6555 G14
5.90
1
IN3A
IN1B
IN1A
IN2B
IN2A
IN3B
V
S
= ±5V
V
OUT
= 200mV
P-P
R
L
= 150
T
A
= 25°C
FREQUENCY (MHz)
–2
GAIN (dB)
2
6
10
14
0.1 10 100 1000
6555 G15
–6
1
18
–4
0
4
8
12
16
V
S
= ±5V
V
OUT
= 2V
P-P
R
L
= 150
T
A
= 25°C
C
L
= 4.7pF
C
L
= 10pF
C
L
= 0pF
FREQUENCY (MHz)
–80
AMPLITUDE (dB)
–40
0
–100
–60
–20
0.1 10 100 1000
6555 G16
–120
1
V
S
= ±5V
V
OUT
= 2V
P-P
R
L
= 150
T
A
= 25°C
WORST
ADJACENT
ALL
CHANNELS
DRIVEN
Crosstalk vs Frequency
FREQUENCY (MHz)
–100
DISTORTION (dBc)
–80
–60
–40
–20
0.01 1 10 100
6555 G18
–120
0.1
0
–110
–90
–70
–50
–30
–10
V
S
= ±5V
V
OUT
= 2V
P-P
R
L
= 150
T
A
= 25°C
HD3
HD2
FREQUENCY (MHz)
–80
AMPLITUDE (dB)
–40
0
–100
–60
–20
0.1 10 100 1000
6555 G17
–120
1
V
S
= ±5V
V
IN
= 1V
P-P
R
L
= 150
T
A
= 25°C
DRIVE IN A,
SELECT IN B
DRIVE IN B,
SELECT IN A