SWITCHES OFFER GUARANTEED LATCH-UP PREVENTION IN HIGH-VOLTAGE APPLICATIONS AND PROVIDE INDUSTRY LEADING ESD PROTECTION

Norwood, MA (08/19/2010) - Analog Devices, Inc. (ADI), a global leader in high-performance semiconductors for signal-processing applications, today introduced new switches able to guarantee latch-up prevention in high-voltage industrial applications operating up to ±20 V. The ADG5412 and ADG5413 are designed for instrumentation, automotive, and other harsh environments that are prone to latch-up, which is an undesirable high-current state that can lead to device failure and persist until the power supply is turned off. The new high voltage switches also achieve an industry best 8-kV HBM (human body model) ESD (electrostatic discharge) rating. This helps shield equipment from excess current and eliminates the need for designers to install additional protection circuitry. Download the data sheet or order samples .

“Latch-up, which may trigger a parasitic silicon-controlled rectifier structure, can be caused by many conditions, including poorly managed power supplies, exceeding the device’s max ratings, and glitches or spikes on switch and multiplexer inputs and outputs,” said James Caffrey, marketing and applications director, Converter Group, Analog Devices. “ADI’s ADG5412 and ADG5413 switches are manufactured using a proprietary high-voltage trench isolation process that is guaranteed to prevent latch-up from occurring, even under severe over-voltage conditions.”

The ADG5412 and ADG5413 each contain four independent SPST (single-pole, single-throw) switches. For applications where the analog signal is bipolar, the switches can be operated from dual supplies up to ±20 V. For applications where the analog signal is unipolar, the new switches can be operated from a single-rail power supply up to 40 V. Each switch conducts equally well in both directions when ON and has an input signal range that extends to the power supplies. In the OFF condition, signal levels up to the supplies are blocked. All switches exhibit break-before-make switching action for use in multiplexer applications.

ADG5412 and ADG5413 Key Features and Benefits:

• Latch-up proof

• 8-kV HBM ESD rating

• Low on resistance less than 10 ohms

• Fast switching times 170 ns

• ±9-V to ±20-V dual supply operation

• 9-V to 40-V single supply operation

• 48-V supply maximum ratings

• Fully specified at ±15 V, ±20 V, +12 V, +36 V

• Rail-to-rail analog signal range

Availability and Pricing

Product	Sample Availability	Temperature Range	Price Each Per 1,000	Packaging
ADG5412	Now	−40°C to +125°C	$2.18	4-mm x 4-mm 16-lead TSSOP (thin-shrink small outline package)
ADG5413	Now	−40°C to +125°C	$2.18	4-mm x 4-mm 16-lead TSSOP 16-lead LFCSP

For more product information on the ADG5412 and ADG5413 latch-up proof switches visit: http://www.analog.com/pr/ADG5412 and http://www.analog.com/pr/ADG5413 . For more information on ADI’s switches and multiplexers visit: http://www.analog.com/en/switchesmultiplexers/products/index.html.

About Analog Devices

Innovation, performance, and excellence are the cultural pillars on which Analog Devices has built one of the longest standing, highest growth companies within the technology sector. Acknowledged industry-wide as the world leader in data conversion and signal conditioning technology, Analog Devices serves over 60,000 customers, representing virtually all types of electronic equipment. Analog Devices is headquartered in Norwood, Massachusetts, with design and manufacturing facilities throughout the world. Analog Devices is included in the S&P 500 Index.

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Editor's Contact Information:

Linda Kincaid
781/937-1472

linda.kincaid@analog.com