When to use LTspice for worst case circuit analysis?
LTspice: Worst-Case Circuit Analysis with Minimal Simulations Runs. When designing a circuit in LTspice, you may wish to assess the impact of component tolerances. For example, the gain error introduced by non-ideal resistors in an op amp circuit.
Which is the ideal result for LTspice graph?
This makes some intuitive sense since we had both 1% and 5% resistors in this example. The last run (16) shows the ideal result (250mV) which is ideal resistors. Recall LTspice graphs the results from the . meas statment as a piece wise linear graph.
Which is worse the LTspice or the lt1997-3?
These specifications are really quite excellent. According to DN1023, CMRR due only to 1% resistors (with an ideal op-amp) will limit your CMRR to 34dB. And of course, the gain error is orders of magnitude worse than what the LT1997-3 achieves.
How does LTspice reduce the number of simulations?
This article illustrates a method that reduces the number of simulations needed, and as a result speeds your time to results. LTSpice provides several ways to vary the value of a parameter.
Can you verify a circuit using LTspice simulator?
With the LTSpice simulator it is possible to verify the circuit using ideal components (i.e. ideal diodes, loss-free inductors, etc) and check how it works in ideal conditions. The above list could be extended because there are so many reasons for making use of a simulation tool like LTspice.
How to simulate different load values In LTspice?
In LTspice this is done by using the “.STEP” directive, which will automatically re-launch the simulation while changing each time the value of a global variable. If this variable is associated with the load current, the simulation is repeated for different load values. Figure 3. Here the steps to simulate the varying load in the circuit above: