ISL8484
®
Data Sheet
September 13, 2006
FN6128.2
Ultra Low ON-Resistance, +1.65V to +4.5V,
Single Supply, Dual SPDT Analog Switch
Related Literature
• Technical Brief TB363 “Guidelines for Handling and
Processing Moisture Sensitive Surface Mount Devices
(SMDs)”
The Intersil ISL8484 device is a low ON-resistance, low
voltage, bidirectional, dual single-pole/double-throw (SPDT)
analog switch designed to operate from a single +1.65V to
+4.5V supply. Targeted applications include battery powered
• Application Note AN557 “Recommended Test Procedures
for Analog Switches”
equipment that benefit from low R
(0.23Ω) and fast
= 15ns). The digital logic
ON
switching speeds (t
ON
= 20ns, t
OFF
Features
input is 1.8V logic-compatible when using a single +3V supply.
• Pb-free Plus Anneal Available as an Option (RoHS
Compliant) (see “Ordering Information” on page 2)
With a supply voltage of 4.2V and logic high voltage of 2.85V
at both logic inputs, the part draws only 10µA max of I+
current.
• Pin Compatible Replacement for the MAX4684 and
MAX4685
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
ISL8484 is offered in small form factor packages, alleviating
board space limitations.
• ON Resistance (R
)
ON
- V+ = +4.3V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.23Ω
- V+ = +3.0V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.27Ω
- V+ = +1.8V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.45Ω
• R
Matching Between Channels . . . . . . . . . . . . . . . . 0.03Ω
Flatness Across Signal Range . . . . . . . . . . . . . . . 0.03Ω
ON
ON
• R
The ISL8484 is a committed dual single-pole/double-throw
(SPDT) that consist of two normally open (NO) and two
normally closed (NC) switches. This configuration can be
used as a dual 2-to-1 multiplexer. The ISL8484 is pin
compatible with the MAX4684 and MAX4685.
• Single Supply Operation . . . . . . . . . . . . . . . +1.65V to +4.5V
• Low Power Consumption (P ). . . . . . . . . . . . . . . . <0.3µW
D
• Fast Switching Action (V+ = +4.3V)
- t
- t
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20ns
ON
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15ns
OFF
TABLE 1. FEATURES AT A GLANCE
ISL8484
• ESD HBM Rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .>9kV
• Guaranteed Break-before-Make
Number of Switches
SW
2
SPDT or 2-1 MUX
0.23Ω
• 1.8V Logic Compatible (+3V supply)
4.3V R
ON
• Low I+ Current when VinH is not at the V+ Rail
• Available in 10 Ld 3x3 TDFN and 10 Ld MSOP
4.3V t /t
ON OFF
20ns/15ns
3V R
0.27Ω
ON
Applications
3V t /t
25ns/20ns
ON OFF
• Battery powered, Handheld, and Portable Equipment
- Cellular/mobile Phones
1.8V R
0.45Ω
ON
1.8V t /t
65ns/50ns
ON OFF
Packages
- Pagers
10 Ld 3x3 Thin DFN, 10 Ld MSOP
- Laptops, Notebooks, Palmtops
• Portable Test and Measurement
• Medical Equipment
• Audio and Video Switching
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774 | Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2006. All Rights Reserved
1
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