Dual 8-Bit Digital Potentiometer retains data for 150 yr.

Press Release Summary:

Model AS1507 is 256-tap SPI-interfaced non-volatile dual digital potentiometer available with 10, 50, and 100 kW resistance. It uses maximum of 500 nA during standby and 200 µA maximum during operation including CMOS write current. Operating from single supply from 2.7-5.5 V, unit offers end-to end resistance temperature coefficient of 90 ppm/°C. Wiper information is stored in Hi-EPR EEPROM that allows 10 million write cycles at 25°C and 1 million write cycles at 85°C.

Original Press Release:

austriamicrosystems Unveils Dual 8-bit Digital Potentiometer with High Performance EEPROM and Industry-Leading Data Retention and Write Cycles

AS1507 offers excellent DC performance plus unrivalled 150 year data retention and 10 million write cycles with unique Hi-EPR EEPROM

Unterpremstaetten, Austria (March 10, 2008) - austriamicrosystems (SWX: AMS), a leading global designer and manufacturer of high performance analog ICs for communications, industrial, medical and automotive applications, today expanded its digital potentiometer portfolio with the AS1507, the successor of the AS1506, a 256-tap SPI-interfaced non-volatile dual digital potentiometer available with 10, 50 and 100k Ohms resistance.

The AS1507 is ideal for the usage in low power environments, using a maximum of 500nA during standby and exceptional low 200µA (max) during operation including the CMOS write current. Operating from a single supply from 2.7 to 5.5V, the AS1507 offers an end-to end resistance temperature coefficient of 90ppm/°C. The AS1507 delivers an excellent integral nonlinearity (INL) of ±0.5LSB (max) as well as outstanding differential nonlinearity (DNL) of ±0.5LSB (max). A mute input signal allows a wiper reset to zero for both potentiometer registers.

"The AS1507 offers several advantages over analog potentiometers and competitive digital potentiometers," said Walter Moshammer, marketing director Standard Linear at austriamicrosystems. "Besides the obvious advantages of being vibration and shock resistant, with better resolution, small form factor and increased overall performance,
the AS1507 offers an exceptionally reliable EEPROM which is able to save the stored information for decades, even in the harshest environments, and endures millions of write cycles."

The AS1507 digital potentiometer stores the wiper information in the integrated Hi-EPR (High Endurance, Performance & Retention) EEPROM with world beating numbers of write cycles and data retention time. austriamicrosystems Hi-EPR EEPROM allows 10 million write cycles at 25°C and an unheard of 1 million write cycles at 85°C which is 50 times more than conventional high grade EEPROM. Additionally, the AS1507 delivers
150 years of data retention at 85°C storing the EEPROM information 15 times longer than standard high grade EEPROM. A ready signal indicates the end of a writing operation.

The AS1507 is available in a small 16-pin TDFN 3x3mm package. For product specific information, to download data sheets or to request free samples from austriamicrosystems' online shop ICdirect, please visit http://austriamicrosystems.com/03products/products_detail/AS1507/AS1507.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).

Electronic picture and block diagram are available on request or at

Technical Contact
austriamicrosystems AG
Manfred Kogler
Marketing Manager Standard Linear
Tel: +43 (0) 3136 500 5274
Fax: +43 (0) 3136 500 5420

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