DG3408_11 Datasheet, PDF(11/14 Page) Vishay Siliconix – Precision 8-Ch/Dual 4-Ch Low Voltage Analog Multiplexers

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DG3408_11 Datasheet, PDF (11/14 Pages) Vishay Siliconix – Precision 8-Ch/Dual 4-Ch Low Voltage Analog Multiplexers

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TEST CIRCUITS

DG3408, DG3409

Vishay Siliconix

V+

All S and Da

VS1

DG3408

DG3409

Db, D

GND

V-

50 ï

V- 300 ï

35 pF

Logic

Input

Switch

Output

50 %

tr < 5 ns

tf < 5 ns

90 %

tOPEN

Return to Specifications:

Single Supply 12 V

Dual Supply V+ = 5 V, V- = - 5 V

Single Supply 5 V

Single Supply 3 V

Figure 4. Break-Before-Make Interval

V+

Channel

Select

V+

GND

V-

1 nF

Logic 3 V

Input

OFF

Switch

Output

ïVO

ïVO is the measured voltage due to charge transfer

error Q, when the channel turns off.

Q = CL x ïVO

Figure 5. Charge Injection

V+

VIN

Rg = 50 ï

V+

GND

V-

VOUT

50 ï

V-

Off Isolation = 20 log

Figure 6. Off Isolation

VOUT

VIN

Document Number: 72858

S11-0303-Rev. E, 28-Feb-11

www.vishay.com

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