LT1207
TYPICAL PERFOR A CE CHARACTERISTICS
Output Impedance vs Frequency
100
V
S
=
±15V
I
O
= 0mA
R
SHDN
= 121k
100k
A
V
= 1
R
F
= 1k
V
S
=
±15V
OUTPUT IMPEDANCE (Ω)
10k
DISTORTION (dBc)
OUTPUT IMPEDANCE (Ω)
10
1
R
SHDN
= 0Ω
0.1
0.01
100k
1M
10M
FREQUENCY (Hz)
LT1207 • TPC19
3rd Order Intercept vs Frequency
60
V
S
=
±15V
R
L
= 50Ω
R
F
= 590Ω
R
G
= 64.9Ω
3rd ORDER INTERCEPT (dBm)
50
40
30
20
10
0
5
U W
100M
Output Impedance in Shutdown
vs Frequency
–30
–40
–50
–60
–70
–80
10
100k
2nd and 3rd Harmonic Distortion
vs Frequency
V
S
=
±15V
V
O
= 2V
P-P
R
L
= 10Ω
2nd
3rd
2nd
1k
R
L
= 30Ω
100
3rd
–90
1M
10M
100M
LT1207 • TPC20
1
FREQUENCY (Hz)
3
2
4 5
FREQUENCY (MHz)
6 7 8 9 10
LT1207 • TPC21
Test Circuit for 3rd Order Intercept
+
1/2 LT1207
P
O
–
590Ω
65Ω
MEASURE INTERCEPT AT P
O
LT1207 • TPC23
50Ω
10
15
20
FREQUENCY (MHz)
25
30
LT1207 • TPC22
7
LINER [ LINEAR TECHNOLOGY ]
