MAX4642EUA Просмотр технического описания (PDF) - Maxim Integrated

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MAX4642EUA

High-Speed, Low-Voltage, 4Ω, Dual SPST CMOS Analog Switches

Maxim Integrated 

High-Speed, Low-Voltage, 4Ω, Dual SPST

CMOS Analog Switches

V+ 0.1µF

V+ NO_

OR

NC_

*

MAX4641

MAX4642

V+

MAX4643 COM_

IN_

GND

NETWORK

ANALYZER

VIN 50Ω

50Ω

VOUT

MEAS

REF

50Ω 50Ω

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.

OFF-ISOLATION =

20log

VOUT

VIN

ON-LOSS = 20log VOUT

VIN

* ADD 50Ω TERMINATION FOR

OFF-ISOLATION

Figure 3. Off-Isolation, On-Loss, and Crosstalk

V+

V+

NO_

OR

NC_

MAX4641

MAX4642

VIN

IN_ MAX4643 COM_

GND

50Ω

VNO_ OR VNC_ = 0V

VOUT

CL

1000pF

V+

AS

REQUIRED

V+

NO_

OR

NC_

MAX4641

MAX4642

IN_ MAX4643 COM_

GND

1MHz

CAPACITANCE

ANALYZER

V+

VIN

0

VOUT

MAX4641

MAX4642

∆VOUT

∆VOUT IS THE MEASURED VOLTAGE DUE TO CHARGE TRANSFER

ERROR Q WHEN THE CHANNEL TURNS OFF.

Q = ∆VOUT x CL

Figure 5. NO_, NC_, and COM_ Capacitance

Chip Information

TRANSISTOR COUNT: 105

Figure 4. Charge Injection

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