Bedlington, UK Providing military and aerospace analogue design engineers with a precision two-element resistor network in a 1206 chip package, TT Electronics Welwyn Components has developed a military voltage divider that provides two matched resistors with precision absolute and ratio tolerances (±0.05%/±0.01%) on a single chip. Designated the D1206 Series , the ceramic chip exhibits better TCR tracking, higher accuracy, and significant board space savings compared to designs using two discrete resistors. The D1206 Series voltage divider is composed of two TaNFilm® tantalum nitride resistors on ceramic substrate, packaged on a standard 1206 size chip, which has a lower profile and occupies less board space than conventional plastic packaged (SOT-23) networks. The dividers feature a resistance range of 100 Ohm to 200 kOhm, with absolute tolerances to ±0.05% and ratio tolerances to ±0.01%. TCRs are ±25ppm/°C absolute and ±5ppm/°C tracking. Power dissipation is 250 mW and the operating temperature range is -55°C to +125°C. TT electronics / Welwyn Components Ltd , Bedlington, UK. www.ttelectronics.com.
David Patterson, known for his pioneering research that led to RAID, clusters and more, is part of a team at UC Berkeley that recently made its RISC-V processor architecture an open source hardware offering. We talk with Patterson and one of his colleagues behind the effort about the opportunities they see, what new kinds of designs they hope to enable and what it means for today’s commercial processor giants such as Intel, ARM and Imagination Technologies.