廬
ISL84780
Data Sheet
December 27, 2004
FN6099.1
Ultra Low ON-Resistance, Low Voltage,
Single Supply, Quad 2:1 Analog
Multiplexer
The Intersil ISL84780 device is a low ON-resistance, low
voltage, bidirectional, Quad SPDT (Dual DPDT) analog
switch designed to operate from a single +1.6V to +3.6V
supply. Targeted applications include battery-powered
equipment that benefit from low on-resistance, and fast
switching speeds (t
ON
= 12ns, t
OFF
= 8ns). The digital logic
input is 1.8V logic-compatible when using a single +3V 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 family of parts may be used to
鈥渕ux-in鈥?additional functionality while reducing ASIC design
risk. The ISL84780 is offered in small form factor packages,
alleviating board space limitations.
The ISL84780 is a committed Quad SPDT that consists of
four normally open (NO) and four normally closed (NC)
switches. This configuration can also be used as a diff dual 2-
to-1 multiplexer/demultiplexer or a quad 2-to1
multiplexer/demultiplexer. The ISL84780 is pin compatible
with the MAX4780.
TABLE 1. FEATURES AT A GLANCE
ISL84780
Number of Switches
SW
3.0V R
ON
3.0V t
ON
/t
OFF
1.8V R
ON
1.8V t
ON
/t
OFF
Packages
4
Quad SPDT (Dual DPDT)
0.36鈩?/div>
12ns/8ns
0.54鈩?/div>
19ns/11ns
16Ld 3x3 TQFN, 16Ld TSSOP
Features
鈥?Pin Compatible Replacement for the MAX4780
鈥?ON Resistance (R
ON
)
- V+ = +3.0V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.36鈩?/div>
- V+ = +1.8V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.54鈩?/div>
鈥?R
ON
Matching between Channels . . . . . . . . . . . . . . . . .0.13鈩?/div>
鈥?R
ON
Flatness Across Signal Range . . . . . . . . . . . . . . .0.05鈩?/div>
鈥?Single Supply Operation. . . . . . . . . . . . . . . . . +1.6V to +3.6V
鈥?Low Power Consumption (PD). . . . . . . . . . . . . . . . . . <0.2碌W
鈥?Fast Switching Action
- t
ON
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12ns
- t
OFF
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8ns
鈥?Guaranteed Break-Before-Make
鈥?1.8V Logic Compatible (+3V supply)
鈥?Available in 16 lead 3x3 thin QFN and 16 lead TSSOP
鈥?ESD HBM Rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6kV
鈥?Pb-Free Available (RoHS Compliant)
Applications
鈥?Battery Powered, Handheld, and Portable Equipment
- Cellular/Mobile Phones
- Pagers
- Laptops, Notebooks, Palmtops
鈥?Portable Test and Measurement
鈥?Medical Equipment
鈥?Audio and Video Switching
Related Literature
鈥?Technical Brief TB363 鈥淕uidelines for Handling and
Processing Moisture Sensitive Surface Mount Devices
(SMDs)鈥?/div>
鈥?Application Note AN557 鈥淩ecommended Test Procedures
for Analog Switches鈥?/div>
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 321-724-7143
|
Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2004. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.
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