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A/D converter performance guaranteed

Santa Clara, Calif. — National Semiconductor Corp. today introduced 12 low-power, 10- and 12-bit analog-to-digital converters (A/D converters) that offer guaranteed performance across three speed ranges between 50 kilosamples per second (Ksamples/s) and 1 megasamples/s (Msamples/s).

These versatile pin- and function-compatible A/D converters allow customers to move from 8 to 12 bits and across three speed ranges without having to modify their boards, said Andrew Jue, product marketing director for National's Data Conversion Systems Group. “Our four-channel devices, for example, use the same footprint and have the same input impedance, which accommodates an easy migration to faster speeds and resolutions.”

National's new A/D converter family will include 8-, 10- and 12-bit parts in one-, two-, four- and eight-channel configurations across three speed ranges for a total of 36 parts covering the most common general-purpose applications. National plans to complete the family by the end of this summer.

Each A/D converter features superior performance and low power, Jue said. For example, the 12-bit, two- and four-channel A/D converters provide no missing codes to 12 bits, ± 1 least significant bit (LSB) maximum integral non-linearity (INL), ±1 LSB maximum differential non-linearity (DNL) and 71 dB minimum signal-to-noise ratio (SNR). Typical power consumption is as low as 1.9 mW at 3 V.

All 12 A/D converters are available now. Pricing starts at $1.30 in 1,000-piece quantities. Click here for data sheets of the ADC family.

National Semiconductor , 1-408-721-5000, www.national.com.

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