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CMD's ESD protection devices tout highest levels of protection

Posted: 05 Jul 2005 ?? ?Print Version ?Bookmark and Share

Keywords:california micro devices? cmd? picoguard? diode array? electrostatic discharge?

California Micro Devices (CMD) has expanded its PicoGuard family of ultra-low capacitance diode arrays for electrostatic discharge (esd) protection with the introduction of its CM1215 and CM1216 devices for digital consumer and computing applications. The company said the new devices are the industry's first low capacitance devices to offer 15kV of contact ESD protection, exceeding IEC61000-4-2 level 4 standards.

The 1.6pF capacitance levels of the CM1215 and CM1216 make them suitable solutions for designers seeking higher levels of ESD protection for high-speed ports such as USB 2.0, IEEE 1394 Firewire, DVI, HDMI and Serial ATA that are commonly found in as digital TVs, STBs, digital still cameras, MP3 players and notebook PCs that require ESD protection at levels greater than 8 kV.

The CM1215 and CM1216 diode arrays are also said to offer the lowest clamping voltages and the lowest dynamic resistance of any low capacitance diode array. The low capacitance, combined with good matching and low crosstalk, provide excellent signal integrity for high-speed data lines, said the company.

The CM1215 is available in configurations of 1, 2 and 4 channels of ESD protection, integrating a pair of low capacitance rail clamp diodes for each line. The CM1216 is available in configurations of 6 and 8 channels and features a pair of low capacitance diodes as well as an integrated Zener diode for improved ESD performance.

These products are offered in packages that are pin compatible with the PicoGuard CM1213 family, which provides 8kV of contact protection, allowing customers to upgrade to higher levels of protection without changing their existing layouts.

The CM1215 and CM1216 are priced between 27 cents and 67 cents each in quantities of 1,000, depending on number of channels. Lead-free versions are available.

- Gina Roos


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