Precision, 16-Channel/Dual 8-Channel,
High-Performance, CMOS Analog Multiplexers
MAX306/MAX307
_________________________________Test Circuits/Timing Diagrams (continued)
+15V
V+
NO1-NO16
LOGIC
INPUT
+3V
50%
0V
V
OUT
80%
COM
GND
50Ω
-15V
V-
300Ω
V
OUT
35pF
0V
SWITCH
OUTPUT
t
OPEN
+2.4V
EN
A0
A1
A2
A3
tr < 20ns
tf < 20ns
+5V
MAX306
Figure 4. Break-Before-Make Interval
+15V
R
S
NO1-NO16 V+
EN
V
S
CHANNEL
SELECT
A0
A1
A2
A3
COM
LOGIC
INPUT
V
OUT
ΔV
OUT
V
OUT
ΔV
OUT
IS THE MEASURED VOLTAGE DUE TO CHARGE TRANSFER
ERROR Q WHEN THE CHANNEL TURNS OFF.
-15V
Q = C
L
=
ΔV
OUT
+3V
OFF
0V
ON
OFF
MAX306
C
L
= 1000nF
GND
V-
Figure 5. Charge Injection
8
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