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Non-linear components are represented as piecewise-linear, or as a function (simulated with one step delay). For mixed-signal systems, system-level, and behavioral modeling NL5 uses simple basic digital, function, C-code, and DLL components. Practically all parameters of NL5 components can be set to positive, negative, zero, or infinity value.
List of free analog and digital electronic circuit simulators, available for Windows, macOS, Linux, and comparing against UC Berkeley SPICE.The following table is split into two groups based on whether it has a graphical visual interface or not.
LTspice is a SPICE-based analog electronic circuit simulator computer software, produced by semiconductor manufacturer Analog Devices (originally by Linear Technology). [2] It is the most widely distributed and used SPICE software in the industry. [6]
Elmore delay [5] is a simple approximation, often used where speed of calculation is important but the delay through the wire itself cannot be ignored. It uses the R and C values of the wire segments in a simple calculation. The delay of each wire segment is the R of that segment times the downstream C. Then all delays are summed from the root.
The first Windows version was released in 1993 as TINA 4.0 for analog, digital, and mixed circuits. [3] TINA 9.0 also includes microcontroller (MCU) simulation, RF network analysis, optimization, and printed circuit board design. [2] TINA development was at version 10, released in 2013, and is at major version 11 since 2016. [4]
It offers the ability to set up a circuit with a graphical user interface and simulate the large-signal, small-signal and noise behaviour of the circuit. Originally, Qucs was composed of a circuit simulator "qucs-core", now Qucsator, and a GUI for schematic entry and plotting. The usage patterns, as well as the emphasis on RF design, were ...
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Static timing analysis (STA) is a simulation method of computing the expected timing of a synchronous digital circuit without requiring a simulation of the full circuit. High-performance integrated circuits have traditionally been characterized by the clock frequency at which they operate. Measuring the ability of a circuit to operate at the ...