MAX4644EUA データシートの表示（PDF） - Maxim Integrated
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MAX4644EUA Datasheet PDF : 10 Pages
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High-Speed, Low-Voltage, 4Ω,
SPDT CMOS Analog Switch
V+ 0.1μF
V+ NO
OR
NC
50Ω
MAX4644
V+
COM
IN
GND
MEASUREMENTS ARE STANDARDIZED AGAINST
SHORT AT SOCKET TERMINALS. OFF-ISOLATION IS
MEASURED BETWEEN COM AND “OFF” TERMINAL
ON EACH SWITCH. ON-LOSS IS MEASURED BETWEEN
COM AND “ON” TERMINAL ON EACH SWITCH. SIGNAL
DIRECTION THROUGH SWITCH IS REVERSED; WORST
VALUES ARE RECORDED.
Figure 3. Off-Isolation and On-Loss
NETWORK
ANALYZER
VIN 50Ω
50Ω
VOUT
MEAS
REF
50Ω 50Ω
OFF-ISOLATION =
20log
VOUT
VIN
ON-LOSS = 20log VOUT
VIN
V+
V+
NO
OR
NC
VIN
IN
50Ω
MAX4644
COM
GND
VNO OR VNC = 0V
VOUT
CL
1000pF
AS
REQUIRED
V+
V+
NO
OR
NC
MAX4644
IN
COM
GND
1MHz
CAPACITANCE
ANALYZER
V+
VIN
0
Figure 5. NO, NC, and COM Capacitance
VOUT
ΔVOUT
ΔVOUT IS THE MEASURED VOLTAGE DUE TO CHARGE TRANSFER
ERROR Q WHEN THE CHANNEL TURNS OFF.
Q = ΔVOUT x CL
Figure 4. Charge Injection
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