Datasheet

7
LT1204
CCHARA TERIST
ICS
UW
AT
Y
P
I
CA
LPER
F
O
R
C
E
±15V All Hostile Crosstalk
vs Frequency
Disable and Shutdown Crosstalk
vs Frequency
Amplifier Output Impedance
vs Frequency
Maximum Undistorted Output
vs Frequency
Total Harmonic Distortion
vs Frequency
FREQUENCY (MHz)
1
0
OUTPUT VOLTAGE (V
P-P
)
5
10
15
20
10 100
1204 G07
25
V
S
= ±15V
R
L
= 1k
R
FB
= 1k
A
V
= 10
A
V
= 2A
V
= 1
Maximum Capacitive Load
vs Feedback Resistor
FEEDBACK RESISTOR (kΩ)
10
CAPACITIVE LOAD (pF)
1000
10000
023
1204 G08
1
100
R
L
= 1k
A
V
= 2
T
A
= 25°C
≤ 5dB PEAKING
V
S
= ±5V V
S
= ±15V
FREQUENCY (Hz)
10
0.001
TOTAL HARMONIC DISTORTION (%)
0.1
1k 100k
1204 G09
100 10k
V
O
= 6V
RMS
V
O
= 1V
RMS
V
S
= ±15V
R
L
= 400Ω
R
F
= R
G
= 1k
0.01
All Hostile Crosstalk vs Frequency,
Various Source Resistance
FREQUENCY (MHz)
1
–120
ALL HOSTILE CROSSTALK (dB)
–100
–80
–60
–40
10 100
1204 G12
–110
–90
–70
–50
–30
V
S
= ±15V
R
L
= 100Ω
R
F
= R
G
= 1k
DEMO PCB #028
–130
R
S
= 37.5Ω
R
S
= 75Ω
R
S
= 0Ω
R
S
= 10Ω
±5V All Hostile Crosstalk
vs Frequency
FREQUENCY (MHz)
1
–120
ALL HOSTILE CROSSTALK (dB)
–100
–80
–60
–40
10 100
1204 G11
–110
–90
–70
–50
–30
–20
V
S
= ±5V
R
L
= 100Ω
R
F
= R
G
= 1k
R
S
= 0Ω
DEMO PCB #028
ANY CHANNEL
FREQUENCY (MHz)
1
–120
ALL HOSTILE CROSSTALK (dB)
–100
–80
–60
–40
10 100
1204 G10
–110
–90
–70
–50
–30
–20
V
S
= ±15V
R
L
= 100Ω
R
F
= R
G
= 1k
R
S
= 0Ω
DEMO PCB #028
CH1
CH4
CH3
CH2
FREQUENCY (MHz)
1
–120
ALL HOSTILE CROSSTALK (dB)
–100
–80
–60
–40
10 100
1204 G13
–110
–90
–70
–50
–30
–20
V
S
= ±15V
R
L
= 100Ω
R
F
= R
G
= 1k
R
S
= 50Ω
DEMO PCB #028
ALL CHANNELS DRIVEN
SHUTDOWN CROSSTALK
DISABLE CROSSTALK
Spot Noise Voltage and Current
vs Frequency
FREQUENCY (Hz)
10
1
10
100
1k 100k
1204 G14
SPOT NOISE (nV/√Hz OR pA/√Hz)
100 10k
–i
n
e
n
+i
n
FREQUENCY (Hz)
10k
OUTPUT IMPEDANCE (Ω)
1
1000
1M 100M
1204 G15
0.1
10
100
100k
10M
R
FB
= R
G
= 2k
R
FB
= R
G
= 750Ω
V
S
= ±15V