ISL54048, ISL54049
®
Data Sheet
March 20, 2007
FN6469.0
Ultra Low ON-Resistance, +1.65V to +4.5V,
Single Supply, Dual SPST Analog Switch
Features
• ON-Resistance (r
)
ON
The Intersil ISL54048 and ISL54049 devices are low ON-
resistance, low voltage, bidirectional, dual single-pole/single-
throw (SPST) analog switches designed to operate from a
single +1.65V to +4.5V supply. Targeted applications include
- V+ = +4.3V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.29Ω
- V+ = +3.0V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.33Ω
- V+ = +1.8V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.55Ω
• r
Matching Between Channels . . . . . . . . . . . . . . . . . 0.06Ω
Flatness Across Signal Range . . . . . . . . . . . . . . . . 0.03Ω
ON
ON
battery powered equipment that benefit from low r
(0.29Ω)
= 20ns). The
ON
and fast switching speeds (t
ON
= 40ns, t
OFF
• r
digital logic input is 1.8V logic-compatible when using a single
+3V supply.
• Single Supply Operation . . . . . . . . . . . . . . . +1.65V to +4.5V
• Low Power Consumption (P ). . . . . . . . . . . . . . . <0.45μW
D
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
ISL54048 and ISL54049 are offered in a small form factor
package, alleviating board space limitations.
• Fast Switching Action (V+ = +4.3V)
- t
- t
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40ns
ON
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20ns
OFF
• ESD HBM Rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .>8kV
• 1.8V Logic Compatible (+3V supply)
• Low ICC Current when VinH is not at the V+ Rail
• Available in 10 Ld 1.8mmx1.4mmx0.5mm μTQFN
• Pb-free plus anneal available (RoHS compliant)
The ISL54048 has two normally open (NO) SPST switches
and the ISL54049 has two normally closed (NC) SPST
switches.
TABLE 1. FEATURES AT A GLANCE
ISL54048, ISL54049
Applications
• Battery powered, Handheld, and Portable Equipment
- Cellular/mobile Phones
Number of Switches
SW
2
SPST
- Pagers
4.3V r
ON
0.29Ω
- Laptops, Notebooks, Palmtops
4.3V t /t
ON OFF
40ns/20ns
0.33Ω
• Portable Test and Measurement
• Medical Equipment
3V r
ON
• Audio and Video Switching
3V t /t
50ns/27ns
0.55Ω
ON OFF
1.8V r
ON
Related Literature
• Technical Brief TB363 “Guidelines for Handling and
Processing Moisture Sensitive Surface Mount Devices
(SMDs)”
1.8V t /t
70ns/54ns
ON OFF
10 Ld 1.8mmx1.4mmx0.5mm
Package
μTQFN
• Application Note AN557 “Recommended Test Procedures
for Analog Switches”
Ordering Information
PART NUMBER (Note)
PART MARKING
TEMP. RANGE (°C)
PACKAGE (Pb-Free)
PKG. DWG. #
L10.1.8x1.4A
ISL54048IRUZ-T
B
C
-40 to +85
10 Ld 1.8x1.4x0.5 μTQFN
Tape and Reel
ISL54049IRUZ-T
-40 to +85
10 Ld 1.8x1.4x0.5 μTQFN
L10.1.8x1.4A
Tape and Reel
NOTE: Intersil Pb-free plus anneal products employ special Pb-free material sets; molding compounds/die attach materials and 100% matte tin plate
termination finish, which are RoHS compliant and compatible with both SnPb and Pb-free soldering operations. Intersil Pb-free products are MSL
classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020.
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1
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Copyright Intersil Americas Inc. 2007. All Rights Reserved
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