DG408 Maxim, DG408 Datasheet - Page 9
DG408
Manufacturer Part Number
DG408
Description
Maxim's redesigned DG408 and DG409 CMOS analog multiplexers now feature guaranteed matching between channels (8Ω max) and flatness over the specified signal range (9Ω max)
Manufacturer
Maxim
Datasheet
1.DG408.pdf
(12 pages)
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Figure 6. Off Isolation
Figure 8. Source/Drain Capacitance
CHANNEL
SELECT
R
S
= 50Ω
V
IN
A2
A1
A0
GND
_______________________________________________________________________________________
OFF ISOLATION = 20log
A0
A1
A2
S1
S8
DG408
GND
+15V
EN
V+
10nF
DG408
-15V
Improved, 8-Channel/Dual 4-Channel,
+15V
V-
EN
V+
S1
S8
D
-15V
V
V-
10nF
V
OUT
IN
D
R
or Equivalent
L
Impedance
f = 1MHz
= 1kΩ
Analyzer
V
Meter
OUT
Test Circuits/Timing Diagrams (continued)
CMOS Analog Multiplexers
Figure 7. Crosstalk
R
S
= 50Ω
V
IN
A0
A1
A2
S1
S2
S8
CROSSTALK = 20log
GND
10nF
DG408
+15V
V+
10nF
-15V
V
V-
V
OUT
EN
IN
D
R
L
= 1kΩ
V
+2.4V
OUT
9