1

®

FN6016.6

ISL84541, ISL84542, ISL84543, ISL84544

Low-Voltage, Single Supply, Dual SPST,

SPDT Analog Switches

The Intersil ISL84541–ISL84544 devices are precision, dual

analog switches designed to operate from a single +2.7V to

+12V supply. Targeted applications include battery powered

equipment that benefit from the devices’ low power

consumption (5

µW), low leakage currents (100pA max), and

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. Some

of the smallest packages are available alleviating board space

limitations, and making Intersil’s newest line of low-voltage

switches an ideal solution.

The ISL84541/ISL84542/ISL84543 are dual single-

pole/single-throw (SPST) devices. The ISL84541 has two

normally open (NO) switches; the ISL84542 has two normally

closed (NC) switches; the ISL84543 has one NO and one NC

switch and can be used as an SPDT. The ISL84544 is a

committed SPDT, which is perfect for use in 2-to-1 multiplexer

applications.

Table 1 summarizes the performance of this family. For higher

performance, pin compatible versions, see the ISL43120 - 22

and ISL43210 datasheet.

Related Literature

Technical Brief TB363 “Guidelines for Handling and

Processing Moisture Sensitive Surface Mount Devices

(SMDs)”

Features

•

Pb-free Available as an Option

• Drop-in Replacements for MAX4541 - MAX4544, DG9461,

DG9262 - DG9263

• Fully Specified at 3.3V and 5V Supplies

• Pin Compatible with MAX323 - MAX325

• Low Charge Injection . . . . . . . . . . . . . . . . . . . . . . 5pC (Max)

• Single Supply Operation. . . . . . . . . . . . . . . . . +2.7V to +12V

• Fast Switching Action

• Guaranteed Break-Before-Make (ISL84543/ISL84544

only)

• Minimum 2000V ESD Protection per Method 3015.7

• TTL, CMOS Compatible

• Available in SOT-23 Packaging

Applications

• Battery Powered, Handheld, and Portable Equipment

- Cellular/Mobile Phones

- Pagers

- Laptops, Notebooks, Palmtops

• Communications Systems

- Military Radios

- PBX, PABX

• Test Equipment

- Ultrasound

- Electrocardiograph

• Heads-Up Displays

• Audio and Video Switching

• Various Circuits

- +3V/+5V DACs and ADCs

- Sample and Hold Circuits

- Digital Filters

- Operational Amplifier Gain Switching Networks

- High Frequency Analog Switching

- High Speed Multiplexing

- Integrator Reset Circuits

TABLE 1. FEATURES AT A GLANCE

ISL84541

ISL84542 ISL84543

ISL84544

NUMBER OF

SWITCHES

22

2

1

SW 1 / SW 2

NO / NO

NC / NC

NO / NC

SPDT

50

Ω

50

Ω

50

Ω

50

Ω

50 / 20ns

50 / 20ns 50 / 20ns

50 / 20ns

30

Ω

30

Ω

30

Ω

30

Ω

35 / 25ns

35 / 25ns 35 / 25ns

35 / 25ns

PACKAGES

8 Ld PDIP,

8 Ld SOIC,

8 Ld SOT-23,

8 Ld MSOP

8 Ld PDIP,

8 Ld SOIC,

8 Ld SOT-23

8 Ld PDIP,

8 Ld SOIC,

6 Ld SOT-23

Data Sheet

September 2003

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

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