Datasheet

MAX4634
Fast, Low-Voltage, 4 Ω ,
4-Channel CMOS Analog Multiplexer
8 _______________________________________________________________________________________
ΔV
OUT
+3V
0
LOGIC
INPUT
V
EN
+5V
V
OUT
GND
V+
A1
A0
EN
COM
MAX4634
C
L
= 5nF
V
OUT
NO
CHANNEL
SELECT
R
S
V
S
ONOFF OFF
ΔV
OUT
IS THE MEASURED VOLTAGE DUE TO CHARGE TRANSFER
ERROR Q WHEN THE CHANNEL TURNS OFF.
Q = ΔV
OUT
x C
L
V
EN
Figure 4. Charge Injection
50%
t
OPEN
t
R
< 5ns
t
F
< 5ns
+5V
V
IH
+ 0.5V
0
LOGIC
INPUT
V
A_
SWITCH
OUTPUT
V
OUT
V+
V
OUT
GND
V+
A0
A1
EN
NO1–NO4
COM
+10V
50Ω
MAX4634
300Ω
35pF
90%
+2.4V
0
V
A
V
EN
Figure 3. Break-Before-Make Interval
Figure 2. Switching Time
50%
t
OFF
t
R
< 5ns
t
F
< 5ns
0
0
V
EN
= V
IH
+ 0.5
V
OUT
90%90%
t
ON
V+
V
OUT
GND
V+
A1
A0
EN
NO1
NO2–NO4
COM
V+
50Ω
300Ω
MAX4634
35pF
V
EN
V+
Test Circuits/Timing Diagrams