Maxim has introduced the MAX1441, a fully integrated, 2-channel, proximity and touch sensor IC for automotive passive-entry (PRKE) and user-control systems.
The MAX1441 combines high-sensitivity detection circuits with an embedded MAXQ microcontroller, power and protection functions, and interface I/O.
This integrated solution requires only five passive components to complete the capacitive sensing circuit. By contrast, the nearest competitive IC requires 16 passive components, as well as a costly high-voltage LDO regulator. This approach helps system designers save substantial board space and reduce solution cost by at least 30%.
Low-power operation (< 100microamps at 14V)
Integrated power regulation
Overvoltage (up to 45V) and reverse-voltage protections (to -12V) with external diode
Spread-spectrum anti-jamming technology
2Kwords flash memory
128 bytes SRAM
Packaging: 20-pin TSSOP
Pricing: $1.80 in 1,000-piece volumes.
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.