ISL5120 Datasheet, PDF (1/15 Pages) Intersil Corporation – Low-Voltage, Single Supply, Dual SPST, SPDT Analog Switches

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Data Sheet
ISL5120, ISL5121, ISL5122, ISL5123
November 17, 2004
FN6022.6
Low-Voltage, Single Supply, Dual SPST,
SPDT Analog Switches
The Intersil ISL5120, ISL5121, ISL5122, ISL5123 devices are
precision, bidirectional, dual analog switches designed to
operate from a single +2.7V to +12V supply. Targeted
applications include battery powered equipment that benefit
from the devices’ low power consumption (5µW), low leakage
currents (100pA max), and fast switching speeds (t_ON = 28ns,
t_OFF = 20ns). 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 “mux-in” additional functionality while reducing ASIC
design risk. Some of the smallest packages are available,
alleviating board space limitations, and making Intersil’s
newest line of low-voltage switches an ideal solution.
The ISL5120, ISL5121, ISL5122 are dual single-pole/single-
throw (SPST) devices. The ISL5120 has two normally open
(NO) switches; the ISL5121 has two normally closed (NC)
switches; the ISL5122 has one NO and one NC switch and
can be used as an SPDT. The ISL5123 is a committed SPDT,
which is perfect for use in 2-to-1 multiplexer applications.
TABLE 1. FEATURES AT A GLANCE
ISL5120 ISL5121 ISL5122 ISL5123
Number of
2
2
2
1
Switches
SW 1/SW 2 NO/NO
NC/NC NO/NC
SPDT
3.3V R_ON
32Ω
32Ω
32Ω
32Ω
3.3V t_ON/t_OFF 40ns /20ns 40ns /20ns 40ns /20ns 40ns /20ns
5V R_ON
19Ω
19Ω
19Ω
19Ω
5V t_ON/t_OFF 28ns/2y0ns 28ns/20ns 28ns/20ns 28ns/20ns
12V R_ON
11Ω
11Ω
11Ω
11Ω
12V t_ON/t_OFF 25ns/17ns 25ns/17ns 25ns/17ns 25ns/17ns
Packages
8 Ld SOIC,
8 Ld SOT-23
8 Ld SOIC,
8 Ld SOT-23
8 Ld SOIC,
6 Ld SOT-23
Related Literature
• Technical Brief TB363 “Guidelines for Handling and
Processing Moisture Sensitive Surface Mount Devices
(SMDs)”
Features
• Improved (lower R_ON, faster switching), pin compatible
replacements for ISL84541–44
• Fully specified at 3.3V, 5V, and 12V supplies
• ON resistance (R_ON) . . . . . . . . . . . . . . . . . . . . . . . . . 19Ω
• R_ON matching between channels . . . . . . . . . . . . . . . . . ≤ 1Ω
• Low charge injection . . . . . . . . . . . . . . . . . . . . . . . . 5pC (Max)
• Single supply operation . . . . . . . . . . . . . . . . . . +2.7V to +12V
• Low power consumption (P_D) . . . . . . . . . . . . . . . . . . . .<5µW
• Low leakage current. . . . . . . . . . . . . . . . . . . . . . . . . .10nA
• Fast switching action
- t_ON . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28ns
- t_OFF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20ns
• Guaranteed break-before-make (ISL5122/ISL5123 only)
• Minimum 2000V ESD protection per method 3015.7
• TTL, CMOS compatible
• Available in SOT-23 packaging
• Pb-Free Available (RoHS Compliant)
Applications
• Battery powered, handheld, and portable equipment
- Cellular/mobile phones
- Pagers
- Laptops, notebooks, palmtops
• Communications systems
- Military radios
- PBX, PABX
• Test equipment
- Ultrasound
- Electrocardiograph
• Heads-up displays
• Audio and video switching
• Various circuits
- +3V/+5V DACs and ADCs
- Sample and hold circuits
- Digital filters
- Operational amplifier gain switching networks
- High frequency analog switching
- High speed multiplexing
- Integrator reset circuits
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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