MAX4752 データシートの表示（PDF） - Maxim Integrated

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MAX4752

0.9Ω, Low-Voltage, Single-Supply Quad SPST Analog Switches

Maxim Integrated 

MAX4751/MAX4752/MAX4753

0.9Ω, Low-Voltage, Single-Supply Quad SPST

Analog Switches

Test Circuits/Timing Diagrams (continued)

V+

RGEN

V+

NO_

OR

MAX4751 NC_

MAX4752

VIN

MAX4753

IN_

COM_

VGEN

VOUT

GND

CL

1000pF

V+

AS

REQUIRED

V+

NO_

OR

MAX4751 NC_

MAX4752

IN_

MAX4753

COM_

GND

1MHz

CAPACITANCE

ANALYZER

V+

VIN

0

VOUT

MAX4752

MAX4751

∆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

Figure 3. NO_, NC_, and COM_ Capacitance

V+ 0.1µF

V+ NO_

OR

NC_ *

MAX4751

MAX4752

V+

MAX4753

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 4. Off-Isolation, On-Loss, and Crosstalk

8

Maxim Integrated

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