Low-Voltage, Dual-Supply, SPST,
CMOS Analog Switches
______________________________________________Test Circuits/Timing Diagrams
V+
V+
NO
VNO
VIN
IN
50Ω
MAX4503
COM
V-
1k
V-
VOUT
35pF
VIN
VIN
0V
VOUT
VOUT
0V
tON
50%
90%
90%
tOFF
V+
V+
NC
VNC
VIN
IN
50Ω
MAX4504
COM
V-
1k
V-
VOUT
35pF
VIN
VIN
0V
VOUT
VOUT
0V
tOFF
50%
90%
90%
tON
Figure 1. Switching Times
V+
VIN
IN
50Ω
V+
NO
or
NC
MAX4503
MAX4504 COM
V-
V-
VNO or VNC = 0V
VOUT
CL
1000pF
V+
VIN
0V
MAX4504
MAX4503
VOUT
∆VOUT
∆VOUT IS THE MEASURED VOLTAGE DUE TO CHARGE TRANSFER
ERROR Q WHEN THE CHANNEL TURNS OFF.
Q = ∆VOUT x CL
Figure 2. Charge Injection
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