MAX4947EBA(2007) データシートの表示（PDF） - Maxim Integrated

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MAX4947EBA
(Rev.:2007)

Hex SPDT Data Switch

Maxim Integrated 

Hex SPDT Data Switch

Timing Circuits/Timing Diagrams (continued)

MAX4947/

MAX4948

VGEN

RGEN NC_

OR NO_

GND

VCC

VCC

COM_

CB_

VIL TO VIH

VOUT

CL

VOUT

CB_

OFF

ΔVOUT

OFF

ON

ON

OFF

OFF

CB_

Q = (ΔVOUT)(CL)

LOGIC INPUT WAVEFORMS INVERTED FOR SWITCHES

THAT HAVE THE OPPOSITE LOGIC SENSE.

Figure 4. Charge Injection

+5V 10nF

0V OR V+ CB_

VCC

VCB_

COM1

NC1 MAX4947/

MAX4948

VOUT

50Ω

NO1*

GND

NETWORK

ANALYZER

50Ω

50Ω

MEAS

50Ω

REF

50Ω

OFF-ISOLATION = 20log ✕

VOUT

VCB_.>

ON-LOSS = 20log ✕

VOUT

VCB_.>

CROSSTALK = 20log ✕

VOUT

VCB_.>

MEASUREMENTS ARE STANDARDIZED AGAINST SHORTS AT IC TERMINALS.

OFF-ISOLATION IS MEASURED BETWEEN COM_ AND OFF NO_ OR NC_ TERMINAL ON EACH SWITCH.

ON-LOSS IS MEASURED BETWEEN COM_ AND ON NO_ OR NC_ TERMINAL ON EACH SWITCH.

CROSSTALK IS MEASURED FROM ONE CHANNEL TO THE OTHER CHANNEL.

SIGNAL DIRECTION THROUGH SWITCH IS REVERSED; WORST VALUES ARE RECORDED.

Figure 5. On-Loss, Off-Isolation, and Crosstalk

10nF VCC

*FOR CROSSTALK THIS PIN IS NO2.

NC2 AND COM2 ARE OPEN.

CAPACITANCE

METER

f = 1MHz

COM_

NC_ or

NO_

VCC

MAX4947/

MAX4948

CB_

GND

VIL OR VIH

Figure 6. On-Loss, Off-Isolation, and Crosstalk

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