News & Events
Intersil's New Quad MightyMUX Analog Switch Brings Best-in-Class Performance in Space-Saving Near-Chip-Scale Packaging

-- High performance for precision medical, communications and instrumentation equipment~-- Single or dual supply operation, lowest R(ON) specs., very low leakage and fast switching

MILPITAS, CA, May 7, 2003 – Intersil Corporation (NASDAQ: ISIL), a world leader in the design and manufacture of high performance analog and wireless networking solutions, today announced a new addition to their rapidly growing MightyMUX™ high-performance analog switch line – the ISL43240. This high-performance IC contains four single-pole double-throw (SPDT) analog switches that provide a best-in-class R(ON) of less than 20 Ohms, at +/-5 V and 25 degrees Centigrade, and a best-in-class R(ON) flatness of less than 4 Ohms guaranteed across input voltage and industrial temperature. Targeted applications include high-precision equipment used for medical, communications, and testing.

“Customers want high performance, small packaging and low price,” said Mamoon Rashid, director of marketing for Intersil’s Analog Solutions Products. “Our careful attention to market needs and manufacturing efficiencies allow us to provide the precision analog switch solutions customers seek.”

The ISL43240 has the flexibility to operate from a +2 V to +12 V single supply or from a +/-2 V to +/-6 V dual supply. The tiny, near-chip-scale, 20-pad 4 X 4 mm Quad Flat No-lead (QFN) package greatly conserves board space. A 20-lead SSOP package option is also available. A very low off-leakage current of less than 100 pA lengthens hold times in sample-and-hold-circuits and fast switching speeds — t(on) = 46 ns, t(off) = 25 ns with dual 5-V supply — reduce propagation delays in timing sensitive applications. These switches offer minimal charge injection of less than 5 pC to maximize signal integrity. All ICs are fully specified at +/-5 V, 12 V, 5 V and 3.3 V to save designers characterization time and increase their confidence in the device’s performance. Intersil offers more guaranteed specifications for the ISL43240 than any competing product.

ISL43240 Technical Details

• 2 V to 12 V (15 V max) single supply or +/-2 V to +/-6 V (+/-7.5 V max) dual supply for maximum dynamic range
• Very low off-leakage current, 0.1nA max, minimizes offsets and improves hold times
• Fast switching, t(on) = 46 ns, t(off) = 25 ns, reduces propagation delays
• Very low charge injection, 5 pC (max), maximizes signal integrity
• Low R(ON) of less than 20 Ohms (+/-5 V at 25 degrees C) reduces signal loss
• Close R(ON) channel matching of less than 1 Ohm across temperature reduces channel bias
• Fully specified at +/-5 V, 12 V, 5 V and 3.3 V to save designers characterization time
• Minimum 2000 V ESD rated per Method 3015.7 improves yields and reliability
• TTL and CMOS compatible for flexibility
• 4 SPDT switches – can be used as a quad 2:1 mux or configured as a single 4:1 mux
• Guaranteed break-before-make contacts
• Packages: 20-pad 4 X 4 mm QFN, 20-lead SSOP

ISL43240 Applications
Use with/for: Use in:

• Low supply voltage DACs and ADCs
• Sample and hold circuits
• Op-amp gain switching
• High-frequency analog switching
• High-speed multiplexing
• Variable line terminators

Use in:

• Medical equipment – ultrasound, electrocardiograph, MRI, patient monitoring, CAT
• Communications systems – radios, PBX, switches, routers, xDSL modems
• Avionics – communication, navigation, instrumentation, simulator
• Test equipment – logic analyzers, spectrum analyzers, multimeters, avionics
• Audio and video switching – production, surveillance

Price and Availability
The ISL43240 is available now. Pricing for quantities of 100 to 999 units is $1.48 each for the ISL43240IR QFN and $1.41 each for the ISL43240IA SSOP. Both packages rated for a temperature range of –40 to +85 degrees C and are available on tape & reel. About Intersil
Intersil Corporation is a global semiconductor leader in the design and manufacture of high performance analog and wireless networking solutions. Intersil’s product portfolios address four fast growing markets – flat panel displays, optical storage (CD and DVD recordable), power management and wireless networking. Intersil brings added customer value in providing complete silicon, software and reference design solutions to new products that enhance the computing experience for people wherever they live, work or travel. For more information about Intersil or to find out how to become a member of our winning team, visit the company's web site and career page at: www.intersil.com

This release may include "forward looking statements" that are subject to risks and uncertainties. For information identifying economic, political, climatic, currency, regulatory, technological, competitive and some other important factors that could cause actual results to differ materially from those anticipated in the forward looking statements, see Intersil’s Safe Harbor Forward Looking Statement disclaimer found at http://www.intersil.com/legal.asp, as well as Intersil’s SEC filings as updated from time to time, found at: http://www.sec.gov MightyMUX is a trademark of Intersil Americas Inc.