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

-- High performance for precision medical, communications and instrumentation equipment~-- Switches operate from single or dual supplies, offer low R(ON), low leakage and fast switching

MILPITAS, CA, March 12, 2003 – Intersil Corporation (NASDAQ: ISIL), a world leader in the design and manufacture of high performance analog and wireless networking solutions, today announced three new additions to their rapidly growing MightyMUX™ high-performance analog switch line – the ISL43140, ISL43141 and the ISL43142, all quad single-pole single-throw (SPST) configured. These new quad analog switches operate from single or dual supplies providing low leakage and fast switching while offering an R(ON) of less than 65 Ohms (+/-5 V at 25 deg. C) with best-in-class R(ON) flatness (12 Ohms max) and channel matching (2.5 Ohms max) across temperature. The tiny 3 X 3-mm quad flat no-lead (QFN) package requires very little board space.

Targeted applications include high-precision equipment used for medical, communications, and testing with secondary applications covering portable battery-powered equipment in which space and power consumption are concerns. Low leakage currents (1 nA max) lengthen hold times in sample-and-hold-circuits and fast switching speeds {t(on) = 40 ns, t(off) = 15 ns with dual 5-V supply} reduce propagation delays in timing sensitive applications. These switches offer minimal charge injection of only 5 pC (max) to maximize signal integrity. All ICs are fully specified at +/-5 V, 12 V, 5 V and 3 V to save designers characterization time.

Each of these new Intersil MightyMUX switches operates from a single 2-V to 12-V supply or a dual +/-2-V to +/-6-V supply. Package options include 16-lead SOIC, 16-lead TSSOP and 3 X 3 mm 16-pad QFN. The ISL43140 has four normally closed (NC) contacts, the ISL43141 has four normally open (NO) contacts and the ISL43142 has two NC and two NO contacts that can be used in combination to provide single-pole double-throw (SPDT) or dual 2:1 multiplexer capability. All devices can be used as switches or multiplexers.

The ISL43140, ISL43141 and ISL43142 are pin compatible with the industry-standard DG411, DG412 and DG413 to facilitate performance upgrades to older designs.

ISL43140, ISL43141 and ISL43142 Technical Details

• Single 2-V to 12-V (15 V max) supply or a dual +/-2-V to +/-6-V supply for maximum dynamic range.
• Very low leakage current, 1 nA max, minimizes offsets and improves hold times
• Fast switching, t(on) = 40 ns, t(off) = 15 ns, reduces propagation delays
• Very low charge injection, 5 pC (max), maximizes signal integrity
• Low R(ON) of less than 65 Ohms (+/-5 V at 25 deg. C) reduces signal loss
• Close R(ON) channel matching of 2.5 Ohms across temperature reduces channel bias
• Fully specified at +/-5 V, 12 V, 5 V and 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
• Configurations: ISL43140 all NC, ISL43141 all NO, ISL43142 two NO and two NC
• Guaranteed make-before-break contacts on ISL43142
• Packages: 16-pad 3 X 3 mm QFN, 16-lead TSSOP, 16-lead SOIC
• Drop-In replacements for DG411, DG412 and DG413 devices

ISL43140, ISL43141 and ISL43142 Applications
Use with/for:

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

Use in:

• Medical equipment – ultrasound, electrocardiograph, MRI, patient monitoring, CAT
• Communications systems – radios, PBX, switches, routers
• Avionics – communication, navigation, instrumentation, simulator
• Test equipment – logic analyzers, spectrum analyzers, multimeters, avionics
• Portable appliances – cellular phones, pagers, notebooks, PDAs
• Audio and video switching – production, surveillance

Price and Availability
Products are available now. Pricing for quantities of 100 to 999 is as follows: All devices are also available in Tape & Reel.

Part Number	Package	Temp Grade	Price
ISL43140IB/ISL43141IB/ISL43142IB	16-lead SOIC	-40 to 85 C	$0.72
ISL43140IV/ISL43141IV/ISL43142IV	16-lead TSSOP	-40 to 85 C	$0.83
ISL43140IR/ISL43141IR/ISL43142IR	16-pad QFN	-40 to 85 C	$0.94

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

MightyMUX is a trademark of Intersil Americas Inc.