Precision, 8-Channel/Dual 4-Channel,
High-Performance, CMOS Analog Multiplexers
_________________________________Test Circuits/Timing Diagrams (continued)
+15V
V+
tr < 20ns
+2.4V
EN
A0
+3V
0V
t < 20ns
LOGIC
INPUT
f
50%
NO1-NO8
+5V
V
OUT
A1
A2
MAX308
80%
SWITCH
OUTPUT
COM
V-
V
OUT
GND
35pF
t
OPEN
0V
300Ω
50Ω
-15V
Figure 4. Break-Before-Make Interval
+15V
V+
R
S
NO
EN
+3V
0V
LOGIC
INPUT
OFF
ON
OFF
V
S
A0
A1
A2
COM
CHANNEL
SELECT
V
OUT
MAX308
∆V
OUT
C = 1000nF
L
V
OUT
GND
V-
∆V IS THE MEASURED VOLTAGE DUE TO CHARGE TRANSFER
OUT
ERROR Q WHEN THE CHANNEL TURNS OFF.
-15V
Q = C = ∆V
L
OUT
Figure 5. Charge Injection
8
_______________________________________________________________________________________
ROCHESTER [ Rochester Electronics ]
