ltc6420 Linear Technology Corporation, ltc6420 Datasheet - Page 5

• Manufacturer Part Number: ltc6420
• Description: Dual Matched 1.8ghz Differential Ampli?ers/adc Drivers
• Manufacturer: Linear Technology Corporation

TYPICAL PERFORMANCE CHARACTERISTICS
–0.1
–0.2
–0.3
–0.4
–0.5
0.5
0.4
0.3
0.2
0.1
0.0
10
Channel to Channel Gain Match
vs Frequency
FREQUENCY (MHz)
–10
–20
–30
–40
–50
–60
–70
–80
25
20
15
10
100
0
5
0
10
10
Input and Output Refl ection and
Reverse Isolation vs Frequency
Frequency Response
TEST CIRCUIT B
FREQUENCY (MHz)
FREQUENCY (MHz)
1000 2000
100
100
S11
642020 G01
S22
S12
TEST CIRCUIT B
–0.1
–0.2
–0.3
–0.4
–0.5
1000
1000
0.5
0.4
0.3
0.2
0.1
0.0
10
642020 G06
Channel to Channel Group Delay
Match vs Frequency
642020 G04
3000
3000
FREQUENCY (MHz)
100
–100
–200
–300
–400
250
200
150
100
50
0
0
S21 Phase and Group Delay vs
Frequency
1
0
Input and Output Impedance vs
Frequency
1000 2000
PHASE
IMPEDANCE MAGNITUDE
PHASE
GROUP DELAY
200
642020 G02
FREQUENCY (MHz)
FREQUENCY (MHz)
10
400
Z
Z
Z
OUT
OUT
IN
–0.1
–0.2
–0.3
–0.4
–0.5
0.5
0.4
0.3
0.2
0.1
0.0
600
10
TEST CIRCUIT B
Z
100
Channel to Channel Phase Match
vs Frequency
IN
800
642020 G07
642020 G05
LTC6420-20
FREQUENCY (MHz)
1000
1000
50
30
10
–10
–30
–50
1.2
0.9
0.6
0.3
0
100
642020 G03
642020f
5
1000