MAX4639 Maxim, MAX4639 Datasheet - Page 11
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MAX4639
Manufacturer Part Number
MAX4639
Description
The MAX4638/MAX4639 are single 8:1 and dual 4:1 CMOS analog multiplexers/demultiplexers (muxes/demuxes)
Manufacturer
Maxim
Datasheet
1.MAX4638.pdf
(16 pages)
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Figure 4. Enable Switching Time
Figure 5. Charge Injection
V
S
R
S
CHANNEL
50Ω
50Ω
SELECT
______________________________________________________________________________________
V
V
EN
EN
V
EN
A0
EN
A0
A1
A2
A1
EN
GND
A0
GND
A1
NO_
EN
A2
MAX4639
MAX4638
GND
V+
V+
V+
V+
MAX4638
MAX4639
NO_, COMA
NO2–NO8
V+
V+
V-
V-
V-
V-
COMB
Low-Voltage Analog Multiplexers
NO1B
COM
NO1
V-
V-
100Ω
COM
100Ω
V
3.5Ω, Single 8:1 and Dual 4:1,
V
NO1
NO1
Test Circuits/Timing Diagrams (continued)
C
1nF
L
V
35pF
OUT
35pF
V
V
OUT
OUT
LOGIC
INPUT
V
V
OUT
EN
OUTPUT
+3V
SWITCH
0V
LOGIC
INPUT
V
V
OUT
EN
OFF
∆V
ERROR Q WHEN THE CHANNEL TURNS OFF.
Q = ∆V
OUT
V
+3V
NO1
0V
ON
0V
IS THE MEASURED VOLTAGE DUE TO CHARGE TRANSFER
OUT
t
ON(EN)
C
L
50%
OFF
90%
ON
90%
t
t
t
R
F
OFF(EN)
< 5ns
< 5ns
ON
∆V
OUT
OFF
11