+1.8V to +5.5V, 2.5Ω, Single SPST Analog Switches
ISL54504, ISL54505
Features
• ON-resistance (r
)
The Intersil ISL54504 and ISL54505 devices are low
ON-resistance, low voltage, bidirectional, single
pole/single throw (SPST) analog switches designed to
operate from a single +1.8V to +5.5V supply. Targeted
applications include battery powered equipment that
ON
- V
- V
- V
= +5.0V. . . . . . . . . . . . . . . . . . . . . 2.5Ω
= +3.0V. . . . . . . . . . . . . . . . . . . . . 4.0Ω
= +1.8V. . . . . . . . . . . . . . . . . . . . . 7.0Ω
CC
CC
CC
benefit from low r
flatness (0.6Ω), and fast switching speeds (t
resistance (2.5Ω), excellent r
• r flatness (+4.5V Supply) . . . . . . . . . . . . . 0.6Ω
ON
• Single supply operation . . . . . . . . +1.8V to +5.5V
• Fast switching action (+4.5V Supply)
ON
ON
= 25ns,
ON
t
= 15ns). The digital logic input is 1.8V CMOS
OFF
compatible when using a single +3V supply.
- t
- t
. . . . . . . . . . . . . . . . . . . . . . . . . . . 25ns
. . . . . . . . . . . . . . . . . . . . . . . . . . . 15ns
ON
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 switch in additional functionality while
reducing ASIC design risk. The ISL54504 and ISL54505
are offered in a 6 Ld 1.2mmx1.0mmx0.4mm pitch
µTDFN package and a 6 Ld SOT-23 package, alleviating
board space limitations.
OFF
• ESD HBM rating. . . . . . . . . . . . . . . . . . . . . . . 6kV
• 1.8V CMOS logic compatible (+3V supply)
• Available in 6 Ld µTDFN and 6Ld SOT-23 Packages
• Pb-free available (RoHS compliant)
Applications
• Battery powered, handheld, and portable equipment
- Cellular/mobile phones
The ISL54504 has one normally open (NO) switch and
ISL54505 has one normally closed (NC) switch.
- Pagers
- Laptops, notebooks, palmtops
TABLE 1. FEATURES AT A GLANCE
ISL54504
1
ISL54505
1
• Portable Test and Measurement
• Medical Equipment
• Audio and video switching
Number of Switches
SW
NO
NC
1.8V r
ON
6Ω
6Ω
Related Literature
1.8V t
/t
ON OFF
65ns/40ns
4Ω
65ns/40ns
4Ω
• Technical Brief TB363 “Guidelines for Handling and
Processing Moisture Sensitive Surface Mount Devices
(SMDs)”
3V r
ON
3V t
/t
ON OFF
30ns/20ns
2.5Ω
30ns/20ns
2.5Ω
5V r
ON
5V t
/t
25ns/15ns
25ns/15ns
ON OFF
Package
6 Ld µTDFN, 6 Ld SOT-23
October 23, 2009
FN6552.2
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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1
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