Impedance in digital circuits increases with temperature, leading to timing delays primarily due to the RC delay in metal traces of integrated circuits (ICs). The thermal coefficient of resistance varies among materials, affecting resistance and consequently the delay. Specifically, as resistance increases without a corresponding change in capacitance, the delay in signal propagation increases. This relationship is crucial for understanding performance issues in high-temperature environments.
PREREQUISITESElectrical engineers, circuit designers, and anyone involved in the development and optimization of digital circuits, particularly in high-temperature applications.
likephysics said:I recently attended a seminar, which said impedance increases with temperature, which results in timing delays in digital circuits. I don't understand how increase in impedance results in delay.
You need a more specific quote, a reference to a particular circuit. It's possible that increased impedance could change the phase in some parts of a circuit but without any specific information, that is, just taken as a bald statement with no context, it makes no sense as far as I can see. For one thing not all impedance increases with temperature.likephysics said:I recently attended a seminar, which said impedance increases with temperature, which results in timing delays in digital circuits. I don't understand how increase in impedance results in delay.