ANALOG PRODUCTS DIVISION

561 E. Elliot Road #175, Chandler, AZ 85225 Tel: (480) 539-2900. Fax: (480) 632-1715

www.protekanalog.com

52

PA4684

Dual SPDT Analog Switch

Features



CMOS Technology for Bus and Analog Applications



Low On-Resistance: 0.5Ω.



Wide VCC Range: 1.65V to 5.5V



Rail-to-Rail Signal Range



Control Input Over voltage Tolerance: 5.5V min.



High Off Isolation: -42dB



Crosstalk Rejection Reduces Signal Distortion: -70dB



Low THD (0.05% @ VCC = 2.7V)



Break-Before-Make Switching



Extended Industrial Temperature Range: –40°C to 85°C

Applications



Cell Phones



PDA’s

95080 Rev2.08/09

NOT FOR USE IN LIFE SUPPORT SYSTEMS



MP3 players



Portable Instrumentation



Speaker Headset Switching



Power Routing



Relay Replacement



Audio and Video Signal Routing



PCMCIA Cards



Modems



USB1.1

Pin Description

Pin #

DFN

Pin #

CSP

Name

Description

2,10

A4, C4

NOX

Data Port (Normally open)

6

B1

GND

Ground

5,7

A1, C1

NCX

Data Port (Normally closed)

3,9

A3, C3

COMX Common Output / Data Port

1

B4

VCC

Positive Power Supply

4,8

A2, C2

INX

Logic Control

Logic Function Table

Ordering Information

Temp Range

Package

Part Number

Flip Chip 10 Bump

PA4684-T7

-40 to +85°C

DFN-10

PA4684DN

Description

ProTek Analog’s PA4684 is a dual high-bandwidth, fast

single-pole double throw (SPDT) CMOS switch. It can be

used as an analog switch or as a low-delay bus switch.

Specified over a wide operating power supply voltage, 1.65V

to 5.5V, the PA4684 has a maximum On-Resistance of 0.5Ω

at +2.7V.

Break-before-make switching prevents both switches being

enabled simultaneously. This eliminates signal disruption

during switching.

The control input, INX, tolerates input drive signals up to

6.0V, independent of supply voltage.

Pin Configuration,

GND

A1

C1

B1

Flip Chip

DFN-10

Functional Diagram

Logic Input (INX)

Function

0

NCX Connected to COMX

1

NOX Connected to COMX

COM

COM

C2

C3

C4

A2

A3

A4

B4

IN2

NC2

NO2

NC1

NO1

IN1

COM2

COM1

GND

V+

COM2

GND

V+

NO1

COM1

IN1

NC1

NC2

IN2

NO2

1

10

5

6