A/D Converter features I²C compatible interface.

Press Release Summary:




Suited for 2.7-5.25 V battery-powered and industrial applications using I²C bus, Model AS1538 offers 12-bit resolution on each of 8 input channels. Available in 16-pin TSSOP package designed for operating environments ranging from -40 to +85°C, unit offers conversion speed of 50 ksps while using 850 µA supply current. In shutdown mode supply current drops to less than 1.5 µA. Internal 2.5 V reference or external reference in 1-5.25 V range determines full-scale analog input range.



Original Press Release:



austriamicrosystems Unveils 12-Bit, 8-Channel, Low Power A/D Converter Featuring an I²C Compatible Interface



AS1538 A/D converter

The AS1538 offers lowest power consumption combined with the maximum speed of an I²C interface.

Unterpremstaetten, Austria (October 18, 2007) - austriamicrosystems (SWX: AMS), a leading global designer and manufacturer of analog ICs for communications, industrial, medical and automotive pplications, has introduced the AS1538 - an I²C interfaced ADC with power consumption in the µA range, expanding austriamicrosystems high-performance ADC portfolio. The AS1538 combines low-power operation, maximum possible conversion speed for I²C and fully-differential or single-ended analog input modes together with outstanding dynamic performance (THD -75dB) in a 16-pin TSSOP package. All this and its ease of use makes the AS1538 well-suited for 2.7 to 5.25V battery-powered and industrial applications using an I²C bus.

The AS1538 offers 12-bit resolution on each of the eight input channels. With a conversion speed of 50ksps while using less as 850 µA supply current (including the internal reference), austriamicrosystems again demonstrates its continued leadership in low power consumption. In shutdown mode the supply current drops to less than 1.5 µA. The internal 2.5V reference or an external reference in the 1V to 5.25V range determines the full-scale analog inputrange.

"The AS1538 has software-configurable analog inputs offering the choice of 4-channel fully differential or 8-channel single-ended mode and providing utmost flexibility for a broad range of applications. At the same time, the fully differential input mode enables especially precise measurements under noisy conditions commonly found in
industrial environments," said Walter Moshammer, Marketing Director Standard Linear at
austriamicrosystems.

The AS1538's I2C-compatible interface supports interface speeds up to 3.4MHz including industry-standard speeds of 100kHz and 400kHz. User-programmable I2C addresses allow up to 4 devices on one I2C bus.

The AS1538 is available in a 16-pin TSSOP package suitable for operating environments ranging from -40°C to +85°C. Product-specific information and free samples via austriamicrosystems' online shop ICDirect can be found at http://austriamicrosystems.com/03products/products_detail/AS1538/description_AS1538.htm

About austriamicrosystems
austriamicrosystems is a leading designer and manufacturer of high performance analog ICs, combining more than 25 years of analog design capabilities and system know-how with its own state-of-the-art manufacturing and test facilities. austriamicrosystems leverages its expertise in low power and high accuracy to provide industry-leading
customized and standard analog products. Operating worldwide with more than 1,000 employees,austriamicrosystems focuses on the areas of power management, sensors & sensor interfaces, portable audio and car access in its markets Communications, Industry & Medical and Automotive, complemented by its Full Service
Foundry activities. austriamicrosystems is listed on the SWX Swiss Exchange in Zurich (ticker symbol: AMS).

For more information, please visit the web site at www.austriamicrosystems.com.

Electronic picture and block diagram are available on request or at
http://austriamicrosystems.com/07presscenter/presscenter_start.htm

For further information

Technical Contact
austriamicrosystems AG
Manfred Kogler
Marketing Manager Standard Linear
Tel: +43 (0) 3136 500 5274
Fax: +43 (0) 3136 500 5420
manfred.kogler@austriamicrosystems.com
www.austriamicrosystems.com

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