ISL84684
®
Data Sheet
June 2004
FN6088
Ultra Low ON-Resistance, Low Voltage,
Single Supply, Dual SPDT Analog Switch
Features
• Pb-Free Available as an Option (see Ordering Info)
The Intersil ISL84684 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
+3.6V supply. Targeted applications include battery powered
• Drop in Replacement for the MAX4684 and MAX4685
• ON Resistance (R
)
ON
- V+ = +2.7V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.29Ω
- V+ = +1.8V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.4Ω
equipment that benefit from low R
(0.25Ω) and fast
= 6ns). The digital logic
ON
switching speeds (t
= 14ns, t
OFF
ON
• R
• R
Matching Between Channels . . . . . . . . . . . . . . . 0.03Ω
Flatness Across Signal Range . . . . . . . . . . . . . . 0.03Ω
ON
input is 1.8V logic-compatible when using a single +3V supply.
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 part may be used to “mux-in”
additional functionality while reducing ASIC design risk. The
ISL84684 is offered in small form factor packages, alleviating
board space limitations.
• Single Supply Operation . . . . . . . . . . . . . . . +1.65V to +3.6V
• Fast Switching Action (V+ = +2.7V)
- t
- t
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14ns
ON
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6ns
OFF
• ESD HBM Rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .>9kV
• Guaranteed Break-before-Make
The ISL84684 is a committed dual single-pole/double-throw
(SPDT) that consist of two normally open (NO) and two
normally (NC) switches. This configuration can be used as a
dual 2-to-1 multiplexer. The ISL84684 is pin compatible with
the MAX4684 and MAX4685.
• 1.8V Logic Compatible (+3V supply)
• Available in 10 lead 3x3 Thin DFN and 10 lead MSOP
Applications
• Battery powered, Handheld, and Portable Equipment
- Cellular/mobile Phones
TABLE 1. FEATURES AT A GLANCE
ISL84684
- Pagers
- Laptops, Notebooks, Palmtops
Number of Switches
SW
2
SPDT or 2-1 MUX
• Portable Test and Measurement
• Medical Equipment
• Audio and Video Switching
3V R
0.25Ω
ON
3V t /t
12ns/5ns
ON OFF
1.8V R
0.4Ω
20ns/8ns
ON
1.8V t /t
ON OFF
Packages
10 Ld 3x3 Thin DFN, 10 Ld MSOP
Related Literature
• Technical Brief TB363 “Guidelines for Handling and
Processing Moisture Sensitive Surface Mount Devices
(SMDs)”
• Application Note AN557 “Recommended Test Procedures
for Analog Switches”
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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