DG408L 查看數據表（PDF） - Vishay Semiconductors

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DG408L

Precision 8-Ch/Dual 4-Ch Low Voltage Analog Multiplexers

Vishay Semiconductors 

SCHEMATIC DIAGRAM (TYPICAL CHANNEL)

V+

GND

A0

AX

V+

EN

V-

Level

Shift

Decode/

Drive

DG408L/409L

Vishay Siliconix

D

V+

V-

S1

Sn

TEST CIRCUITS

Figure 1.

V+

50 Ω

3V

V+

A2

S1

VS1

A1

S2 - S7

A0

DG408L S8

VS8

EN

D

GND V-

300 Ω

V-

V+

50 Ω

3V

A1

S1b

A0

S1a - S4a, Da

V+

DG409L S4b

EN

Db

GND V-

VS1

VSB4

300 Ω

V-

VO

35 pF

VO

35 pF

Logic

3V

Input

VAX

0V

Switch

Output

VO

VS1

50 %

VS8

tTRANS

S1 ON

Figure 2. Transition Time

50 %

tr < 20 ns

tf < 20 ns

90 %

90 %

S8 ON (DG408L)

or

S4 ON (DG409L)

tTRANS

Document Number: 71342

S-71241–Rev. E, 25-Jun-07

www.vishay.com

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