Linear Announces LTspice IV SPICE Circuit Simulation Software

Linear Technology Corp announces LTspice® IV, a major update to its free SPICE circuit simulation software LTspice/SwitcherCAD[tm]III. LTspice IV features multi-threaded solvers designed to better utilize current multicore processors. Also included are new SPARSE matrix solvers that deploy assembly language in order to approach the theoretical flop limit of current FPUs (floating point units). LTspice IV speeds up the simulation speed of medium- to large-sized circuits by a factor of three on a quad core.

Linear Technology LTspice IV SPICE circuit simulation softwareParallel processing has been a long-standing challenge for SPICE simulators. LTspice IV implements proprietary methods that efficiently parallelize tasks that would require as little as 5us to run single-threaded.

LTspice IV also includes integrated schematic capture and waveform viewing. While it has been associated with switch-mode power design (it ships with over 1000 models of switch-mode regulators and controllers), LTspice IV is not an SMPS-specific SPICE program but rather a general-purpose SPICE that includes new spice components so it is fast enough to interactively simulate SMPSs. LTspice IV is not artificially limited by component or node count.

LTspice IV outperforms other commercially available SPICE programs. Linear’s LTspice IV is a free download at www.linear.com/designtools/software.

About Linear Technology
Linear Technology Corporation, a manufacturer of high performance linear integrated circuits, was founded in 1981, became a public company in 1986 and joined the S&P 500 index of major public companies in 2000. Linear Technology products include high performance amplifiers, comparators, voltage references, monolithic filters, linear regulators, DC-DC converters, battery chargers, data converters, communications interface circuits, RF signal conditioning circuits, uModule[tm] products, and many other analog functions. Applications for Linear Technology’s high performance circuits include telecommunications, cellular telephones, networking products such as optical switches, notebook and desktop computers, computer peripherals, video/multimedia, industrial instrumentation, security monitoring devices, high-end consumer products such as digital cameras and MP3 players, complex medical devices, automotive electronics, factory automation, process control, and military and space systems.

LT, LTC and LTM are registered trademarks and uModule is a trademark of Linear Technology Corp.