1

®

FN6357.4

ISL54056

Ultra Low ON-Resistance, +1.65V to +4.5V,

Single Supply, Quad SPDT (Dual DPDT)

Analog Switch

The Intersil ISL54056 device is a low ON-resistance, low

voltage, bidirectional, Quad SPDT (Dual DPDT) analog

switch designed to operate from a single +1.65V to +4.5V

supply. Targeted applications include battery powered

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

With a supply voltage of 4.2V and logic high voltage of 2.85V

at both logic inputs, the part draws only 12µA max of ICC

current.

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 part may be used to “mux-in”

additional functionality while reducing ASIC design risk. The

ISL54056 is offered in small form factor package, alleviating

board space limitations.

The ISL54056 consists of four SPDT switches. It is configured

as a dual double-pole/double-throw (DPDT) device with two

logic control inputs that control two SPDT switches each. The

configuration can be used as a dual differential 2-to-1

multiplexer/demultiplexer. The ISL54056 is pin compatible

with the NLAS3799 and NLAS3799L.

Features

• Pin Compatible Replacement for the NLAS3799 and

NLAS3799L

- V+ = +4.3V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.39

Ω

- V+ = +3.0V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.45

Ω

- V+ = +1.8V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.65

Ω

• Single Supply Operation . . . . . . . . . . . . . . . +1.65V to +4.5V

• Fast Switching Action (V+ = +4.3V)

• Break-Before-Make

• 1.8V Logic Compatible (+3V supply)

• Low ICC Current when VinH is not at the V+ Rail

• Available in 16 Ld 2.6mmx1.8mmx0.5mm µTQFN

• ESD HBM Rating

- COM Pins. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9kV

- All Other Pins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 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

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”

TABLE 1. FEATURES AT A GLANCE

ISL54056

Number of Switches

4

SW

Quad SPDT (Dual DPDT)

0.39

Ω

30ns/16ns

0.45

Ω

34ns/18ns

0.65

Ω

48ns/23ns

Package

16 Ld 2.6x1.8x0.5mm µTQFN

Data Sheet

August 15, 2007

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. 2006, 2007. All Rights Reserved

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