MAX4643 Maxim, MAX4643 Datasheet - Page 9

• Manufacturer Part Number: MAX4643
• Description: The MAX4641/MAX4642/MAX4643 are monolithic, dual, single-pole/single-throw (SPST) switches that can operate from a single supply ranging from +1
• Manufacturer: Maxim

Figure 3. Off-Isolation, On-Loss, and Crosstalk
Figure 4. Charge Injection
V
V
IN
OUT
V
IN
∆V
ERROR Q WHEN THE CHANNEL TURNS OFF.
Q = ∆V
V+
0
OUT
50Ω
OUT
IS THE MEASURED VOLTAGE DUE TO CHARGE TRANSFER
IN_
x C
High-Speed, Low-Voltage, 4Ω, Dual SPST
_______________________________________________________________________________________
L
MAX4641
MAX4642
MAX4643
MAX4641
GND
V+
V+
V+
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.
COM_
NO_
NC_
OR
IN_
MAX4642
MAX4641
MAX4642
MAX4643
V
GND
NO_
C
1000pF
V+
V+
L
∆V
OR V
V
OUT
OUT
COM_
0.1µF
NO_
NC_
NC_
OR
= 0V
*
CMOS Analog Switches
Figure 5. NO_, NC_, and COM_ Capacitance
TRANSISTOR COUNT: 105
REQUIRED
* ADD 50Ω TERMINATION FOR
V
ON-LOSS = 20log
OFF-ISOLATION = 20log
OFF-ISOLATION
OUT
V
IN
AS
MEAS
50Ω
50Ω
ANALYZER
NETWORK
IN_
V
V
OUT
50Ω
IN
MAX4641
MAX4642
MAX4643
50Ω
REF
V
GND
V
OUT
V+
V+
IN
COM_
NO_
NC_
OR
Chip Information
CAPACITANCE
ANALYZER
1MHz
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