PS398 データシートの表示（PDF） - Pericom Semiconductor

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PS398

Precision 8-Ch, Diff. 4-Ch, 17V Analog Multiplexers

Pericom Semiconductor 

PS398/PS399

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+5V

+2.4V VEN EN

V+

NO1-NO8

+5V

A2

A1 PS398

A0

COM

VOUT

GND

V-

VA

50WΩ

300ΩW

35pF

-5V

Logic +3V

Input

VA

0V

+5V

Switch

Output

VOUT

0V

Figure 3. Break-Before-Make Interval

50%

tr <20ns

tf <20ns

80%

tOPEN

+5V

RS

NO

V+

Logic +3V

VEN EN

VS

Channel

Select

A0 PS398

COM

A1

VOUT

Input

VEN

0FF

0VX C

ON

0FF

A2

GND

V-

CL=1000pF

VOUT

D∆VOUT

-5V

∆DVOUT IS THE MEASURED VOLTAGE DUE TO CHARGE

TRANSFER WHEN THE CHANNEL TURNS OFF.

∆DVOUT x C L

Figure 4. Charge Injection

+5V 10nF

VIN

RS = 50ΩW

N01 V+

NO1

N08

PS398

COM

A0

A1

A2GND EN V-

VOUT

RL=1kWΩ

-5V

OFF ISOLATION = 20log VOUT

VIN

Figure 5. Off Isolation

VIN

R =1kWΩ

RG= 50WΩ

+5V 10nF

N01 V+

N02

EN

N08

PS398

A0

A1

A2GND

COM

V-

10nF

-5V

+5V

VOUT

RL=1kWΩ

CROSSTALK = 20log VOUT

VIN

Figure 6. CrossTalk

8

PS8185C 10/06/99

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