ISL54503
®
Data Sheet
August 29, 2007
FN6551.1
+1.8V to +5.5V, 2.5Ω, Single SPDT Analog
Switch
Features
• ON-resistance (r
)
ON
The Intersil ISL54503 device is a low ON-resistance, low
voltage, bidirectional, single pole/double throw (SPDT)
analog switch designed to operate from a single +1.8V to
+5.5V supply. Targeted applications include battery powered
equipment that benefit from low ON-resistance (2.5Ω) and
- V
- V
- V
= +5.0V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.5Ω
= +3.0V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.0Ω
= +1.8V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.0Ω
CC
CC
CC
• r
matching between channels . . . . . . . . . . . . . . . . . . .3mΩ
flatness (+4.5V Supply) . . . . . . . . . . . . . . . . . . . . . . 0.6Ω
ON
fast switching speeds (t
= 25ns, t = 15ns). The digital
• r
ON
OFF
ON
logic input is 1.8V CMOS compatible when using a single +3V
supply.
• Single supply operation . . . . . . . . . . . . . . . . . +1.8V to +5.5V
• Fast switching action (+4.5V 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 part may be used to “mux-in”
additional functionality while reducing ASIC design risk. The
ISL54503 is offered in the 6 Ld 1.2mmx1.0mmx0.4mm pitch
µTDFN package, alleviating board space limitations.
- t
- t
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25ns
ON
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15ns
OFF
• Guaranteed break-before-make
• ESD HBM rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6kV
• 1.8V CMOS logic compatible (+3V supply)
• Available in 6 Ld µTDFN package
The ISL54503 is a committed SPDT that consist of one
normally open (NO) and one normally closed (NC) switch.
This configuration can also be used as a 2-to-1 multiplexer.
• Pb-free available (RoHS compliant)
Applications
TABLE 1. FEATURES AT A GLANCE
ISL54503
• Battery powered, handheld, and portable equipment
- Cellular/mobile phones
Number of Switches
SW
1
SPDT or 2-1 MUX
6Ω
- Pagers
- Laptops, notebooks, palmtops
1.8V r
ON
• Portable Test and Measurement
• Medical Equipment
1.8V t /t
ON OFF
65ns/40ns
3Ω
• Audio and video switching
3V r
ON
3V t /t
30ns/20ns
2.5Ω
ON OFF
5V r
Related Literature
• Technical Brief TB363 “Guidelines for Handling and
Processing Moisture Sensitive Surface Mount Devices
(SMDs)”
ON
5V t /t
25ns/15ns
6 Ld µTDFN
ON OFF
Package
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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Copyright © Intersil Americas Inc. 2007. All Rights Reserved
1
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