ADG738 Просмотр технического описания (PDF) - Analog Devices

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ADG738

CMOS, Low Voltage, 3-Wire Serially-Controlled, Matrix Switches

Analog Devices 

ADG738/ADG739

TEST CIRCUITS

Data Sheet

V

S

D

IDS

VS

RON = V/IDS

Figure 19. On Resistance

NC

S1

S2

ID (ON)

D

A

Sn

VD

NC = NO CONNECT VD

Figure 21. IS, ID (On)

IS (OFF)

A

S1

ID (OFF)

D

A

A

Sn

VS

VD

Figure 20. ID (Off), IS (Off)

VDD

VDD

ADG738*

S1

S2 THRU S7

S8

D

GND

VS1

VS8

RL

300Ω

VOUT

CL

35pF

*SIMILAR CONNECTION FOR ADG739.

SYNC

50%

50%

VS1

VOUT

tOFF

90%

90%

tON

Figure 22. Switching Times and Break-Before-Make Times

SYNC

VS1 = VS8

VOUT

80%

80%

tOPEN

VDD

ADG738*

RS

S

D

VS

INPUT LOGIC

GND

SYNC

VOUT

C1nLF

SWITCH OFF

SWITCH ON

QINJ = CL × VOUT

∆VOUT

*SIMILAR CONNECTION FOR ADG739.

Figure 23. Charge Injection

Rev. A | Page 12 of 20

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