1

®

FN6095.3

ISL84781

Ultra Low ON-Resistance, Low-Voltage,

Single Supply, 8 to 1 Analog Multiplexer

The Intersil ISL84781 device contains precision, bidirectional,

analog switches configured as an 8 channel

multiplexer/demultiplexer. It is designed to operate from a

single +1.6V to +3.6V supply. The device has an inhibit pin to

simultaneously open all signal paths.

ON resistance is 0.4

Ω with a +3.0V supply and 0.55Ω with a

single +1.8V supply. Each switch can handle rail to rail

analog signals. The off-leakage current is only 4nA max at

+25°C or 40nA max at +85°C with a +3.3V supply.

All digital inputs are 1.8V logic-compatible when using a

single +3V supply.

The ISL84781 is a 8 to 1 multiplexer device that is offered in a

16 Ld TSSOP package, and a 16 Ld thin QFN package.

Table 1 summarizes the performance of this family.

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 MAX4781, and

MAX4617

- V+ = +3.0V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.4

Ω

- V+ = +1.8V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.55

Ω

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

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

• Guaranteed Break-Before-Make

• High Current Handling Capacity (300mA Continuous)

• Available in 16 Ld TSSOP and 16 Ld 3x3 Thin QFN

• 1.8V CMOS-Logic Compatible (+3V Supply)

• Pb-Free Plus Anneal Available (RoHS Compliant)

• ISL84781IR Replaces the ISL43L680IR.

Applications

• Battery Powered, Handheld, and Portable Equipment

- Cellular/Mobile Phones

- Pagers

- Laptops, Notebooks, Palmtops

• Portable Test and Measurement

• Medical Equipment

• Audio Switching and Routing

TABLE 1. FEATURES AT A GLANCE

ISL84781

Configuration

8:1 Mux

0.4Ω

16ns/13ns

0.55

Ω

24ns/16ns

Packages

16 Ld TSSOP, 16 Ld 3x3 thin QFN

Data Sheet

July 31, 2006

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

1-888-INTERSIL or 1-888-468-3774

Copyright Intersil Americas Inc. 2004, 2006. All Rights Reserved

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