Datasheet

LTC6420-20
11
642020fb
TYPICAL APPLICATIONS
Test Circuit B, 4-Port Measurements
(Only the Signal-Path Connections Are Shown)
+
–
R5
49.9
3.3V 3.3V
R3
10
R4
10
R7
49.9
R8
49.9
V
OCM
C6
2.2µF
R6
49.9
1/2
LTC6420-20
1/2
LTC6420-20
C2
12pF
V
IN
C5
12pF
C3
12pF
642020 TA03
C1
0.1µF
C4
0.1µF
–3dB FILTER BANDWIDTH = 120MHz
LTC2208
V
CM
Parallel ADC Drivers to Reduce Wideband Noise
642020 TA02
–OUTA
+OUTA
+INA
0.1µF
0.1µF
PORT 1
(50Ω)
1/2
AGILENT
E5071C
PORT 2
(50Ω)
+
+
–
–
–INA
200Ω
R
OUT
12.5Ω
R
F
1000Ω
(B CHANNEL NOT SHOWN)
R
G
100Ω
R
F
1000Ω
R
OUT
12.5Ω
37.4Ω
37.4Ω
R
G
100Ω
+
+
–
–
0.1µF
0.1µF
PORT 3
(50Ω)
1/2 AGILENT
E5071C
PORT 4
(50Ω)