Fault-Protected Analog Multiplexers
_________________________________Test Circuits/Timing Diagrams (continued)
+15V
+2.4V VEN EN
V+
VA
50Ω
NO1–NO8
+10V
A0
MAX354
A1
A2
GND
COM
V-
300Ω
-15V
VOUT
35pF
LOGIC +3V
INPUT
VA
0V
+5V
SWITCH
OUTPUT
VOUT
0V
tR < 20ns
50%
tF < 20ns
80%
tOPEN
Figure 3. Break-Before-Make Interval
+15V
RS
NO
V+
VEN EN
VS
A0 MAX354
CHANNEL
COM
SELECT
A1
A2
GND
V-
-15V
Figure 4. Charge Injection
+3V
LOGIC
INPUT
OFF
ON
OFF
VEN
0V
VOUT
CL = 1000nF
VOUT
∆VOUT
∆VOUT IS THE MEASURED VOLTAGE DUE TO CHARGE TRANSFER
ERROR VCTE WHEN THE CHANNEL TURNS OFF.
VCTE = ∆VOUT x CL
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