ISL84684II Datasheet, PDF (1/11 Pages) Intersil Corporation – Ultra Low ON-Resistance, Low Voltage, Single Supply, Dual SPDT Analog Switch in Chipscale Package

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Data Sheet
November 3, 2005
ISL84684II
FN6190.0
Ultra Low ON-Resistance, Low Voltage,
Single Supply, Dual SPDT Analog Switch
in Chipscale Package
The Intersil ISL84684II device is a low ON-resistance, low
voltage, bidirectional, dual single-pole/double-throw (SPDT)
analog switch designed to operate from a single +1.8V to
+4.5V supply. Targeted applications include battery powered
equipment that benefit from low R_ON (0.21Ω) and fast
switching speeds (t_ON = 43ns, t_OFF = 27ns). The digital logic
input is 1.8V logic-compatible when using a single +1.8V to
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
ISL84684II is offered in a 2.00mm x 1.50mm chipscale
package, alleviating board space limitations. The 4x3 array of
solder balls are spaced with a 0.5mm ball pitch.
The ISL84684II 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 ISL84684II is pin
compatible with the MAX4684 and MAX4685.
TABLE 1. FEATURES AT A GLANCE
ISL84684II
Number of Switches
2
SW
SPDT or 2-1 MUX
2.7V R_ON
2.7V t_ON/t_OFF
4.3V R_ON
4.3V t_ON/t_OFF
Package
0.21Ω
43ns/27ns
0.14Ω
30ns/25ns
10 ball, 2.0mm x 1.5mm
depopulated 4x3 array
Chipscale
Related Literature
• Technical Brief TB451 “PCB Assembly Guidelines for
Intersil Wafer Level Chip Scale Package Devices”
• Application Note AN557 “Recommended Test Procedures
for Analog Switches”
Features
• Pb-Free Plus Anneal Available (RoHS Compliant)
• Pin Compatible Replacement for the MAX4684 and
MAX4685
• ON Resistance (R_ON)
- V+ = +2.7V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.21Ω
- V+ = +4.3V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.14Ω
• R_ON Matching Between Channels, maximum . . . . . . 0.05Ω
• R_ON Flatness Across Signal Range, maximum . . . . . 0.03Ω
• Single Supply Operation . . . . . . . . . . . . . . . . +1.8V to +4.5V
• Low Power Consumption P_D . . . . . . . . . . . . . . . . . <0.32µW
• Fast Switching Action (V+ = +2.7V)
- t_ON . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43ns
- t_OFF. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27ns
• Guaranteed Break-before-Make
• 1.8V Logic Compatible
• Low I+ Current when VinH is not at the V+ Rail
• Available in 10 ball 4x3 Array Chipscale Package (2mm x
1.5mm)
Applications
• Battery powered, Handheld, and Portable Equipment
- Cellular/mobile Phones
- Pagers
- Laptops, Notebooks, Palmtops
• Portable Test and Measurement
• Medical Equipment
• Audio and Video Switching
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CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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