1

®

FN6099.1

ISL84780

Ultra Low ON-Resistance, Low Voltage,

Single Supply, Quad 2:1 Analog

Multiplexer

The Intersil ISL84780 device is a low ON-resistance, low

voltage, bidirectional, Quad SPDT (Dual DPDT) analog

switch designed to operate from a single +1.6V to +3.6V

supply. Targeted applications include battery-powered

equipment that benefit from low on-resistance, and fast

input is 1.8V logic-compatible when using a single +3V supply.

Cell phones, for example, often face ASIC functionality

limitations. The number of analog input or GPIO pins may be

limited and digital geometries are not well suited to analog

switch performance. This family of parts may be used to

“mux-in” additional functionality while reducing ASIC design

risk. The ISL84780 is offered in small form factor packages,

alleviating board space limitations.

The ISL84780 is a committed Quad SPDT that consists of

four normally open (NO) and four normally closed (NC)

switches. This configuration can also be used as a diff dual 2-

to-1 multiplexer/demultiplexer or a quad 2-to1

multiplexer/demultiplexer. The ISL84780 is pin compatible

with the MAX4780.

Related Literature

• Technical Brief TB363 “Guidelines for Handling and

Processing Moisture Sensitive Surface Mount Devices

(SMDs)”

• Application Note AN557 “Recommended Test Procedures

for Analog Switches”

Features

• Pin Compatible Replacement for the MAX4780

- V+ = +3.0V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.36

Ω

- V+ = +1.8V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.54

Ω

• Single Supply Operation. . . . . . . . . . . . . . . . . +1.6V to +3.6V

• Low Power Consumption (PD). . . . . . . . . . . . . . . . . . <0.2µW

• Fast Switching Action

• Guaranteed Break-Before-Make

• 1.8V Logic Compatible (+3V supply)

• Available in 16 lead 3x3 thin QFN and 16 lead TSSOP

• ESD HBM Rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6kV

• Pb-Free Available (RoHS Compliant)

Applications

• Battery Powered, Handheld, and Portable Equipment

- Cellular/Mobile Phones

- Pagers

- Laptops, Notebooks, Palmtops

• Portable Test and Measurement

• Medical Equipment

• Audio and Video Switching

TABLE 1. FEATURES AT A GLANCE

ISL84780

Number of Switches

4

SW

Quad SPDT (Dual DPDT)

0.36

Ω

12ns/8ns

0.54

Ω

19ns/11ns

Packages

16Ld 3x3 TQFN, 16Ld TSSOP

Data Sheet

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.

1-888-INTERSIL or 321-724-7143

Copyright Intersil Americas Inc. 2004. All Rights Reserved

All other trademarks mentioned are the property of their respective owners.

December 27, 2004