DC analysis is a fundamental step in circuit characterization. DC analysis determines the initial DC operating point of the circuit and is automatically performed prior to a transient analysis to determine the initial conditions. It is also used in order to ascertain the startup (power-on) behavior of circuits to confirm that there are no stray currents and voltages in the ramp-up to normal operation. Achieving convergence in DC analysis is critical, as failure to converge means that no other analysis can be done.

Traditional SPICE simulators often can not achieve DC convergence on complex circuits. Designers must spend hours or days experimenting with simulator options, modifying the circuit, ramping power supply voltages, etc. to coax the simulator to converge.

The Precision Circuit Analysis technology in BDA's Analog FastSPICE includes innovative and numerically optimized DC solvers that deliver exceptional DC convergence on much more complex circuits than traditional SPICE simulators, thereby eliminating hours or days of work-arounds.

The table below shows some of the customer circuits in which designers have run DC analysis using Analog FastSPICE and achieved full SPICE accuracy at least 5X faster.