LT1398/LT1399/LT1399HV
TYPICAL PERFOR A CE CHARACTERISTICS
Closed-Loop Gain vs Frequency
(A
V
= 1)
4
2
GAIN (dB)
GAIN (dB)
0
–2
–4
1M
10M
100M
V
S
=
±5V
FREQUENCY (Hz)
V
IN
= –10dBm
R
F
= 365Ω
R
L
= 100Ω
1G
1398/99 G01
6
4
2
1M
10M
100M
V
S
=
±5V
FREQUENCY (Hz)
V
IN
= –10dBm
R
F
= R
G
= 324Ω
R
L
= 100Ω
1G
1398/99 G02
GAIN (dB)
Large-Signal Transient Response
(A
V
= 1)
OUTPUT (1V/DIV)
OUTPUT (1V/DIV)
V
S
=
±5V
V
IN
=
±2.5V
R
F
= 365Ω
R
L
= 100Ω
TIME (5ns/DIV)
1398/99 G04
V
S
=
±5V
TIME (5ns/DIV)
V
IN
=
±1.25V
R
F
= R
G
= 324Ω
R
L
= 100Ω
1398/99 G05
OUTPUT (1V/DIV)
2nd and 3rd Harmonic Distortion
vs Frequency
30
T
A
= 25°C
40 R
F
= R
G
= 324Ω
R
L
= 100Ω
V
S
=
±
5V
50
V
OUT
= 2VPP
60
70
80
90
100
110
1
10
100
1000 10000 100000
FREQUENCY (kHz)
1398/1399 G07
OUTPUT VOLTAGE (V
P-P
)
DISTORTION (dB)
HD2
5
4
3
2
1
T
A
= 25°C
R
F
= 324Ω
R
L
= 100Ω
V
S
=
±
5V
10
FREQUENCY (MHz)
100
1398/1399 G08
PSRR (dB)
HD3
6
U W
Closed-Loop Gain vs Frequency
(A
V
= 2)
10
8
4
2
0
–2
–4
Closed-Loop Gain vs Frequency
(A
V
= – 1)
1M
10M
100M
V
S
=
±5V
FREQUENCY (Hz)
V
IN
= –10dBm
R
F
= R
G
= 309Ω
R
L
= 100Ω
1G
1398/99 G03
Large-Signal Transient Response
(A
V
= 2)
Large-Signal Transient Response
(A
V
= – 1)
V
S
=
±5V
TIME (5ns/DIV)
V
IN
=
±2.5V
R
F
= R
G
= 309Ω
R
L
= 100Ω
1398/99 G06
Maximum Undistorted Output
Voltage vs Frequency
8
7
A
V
= +1
6
A
V
= +2
80
70
60
50
40
30
20
10
PSRR vs Frequency
– PSRR
+ PSRR
0
10k
T
A
= 25°C
R
F
= R
G
= 324Ω
R
L
= 100Ω
A
V
= +2
100k
1M
10M
FREQUENCY (Hz)
100M
1398/1399 G09
LINER [ LINEAR TECHNOLOGY ]
