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I want to know the comparison between the performance parameters of Tristate buffer and Schmitt Trigger. By performance parameters, I mean things like propagation delay,power consumption etc.

Thank you

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I want to know, for example, if I use tri-state buffer as a repeater in a simple circuit, will it make propagation delay less than that if I use schmitt trigger as a repeater in that same circuit ? If so then why ?

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  • \$\begingroup\$ Oranges are orange, apples come in many colours. A Schmitt Trigger is a different beast from a tri-state buffer. The parameters you mention are specific to a particular device and listed in their spec sheets. If you want to compare one device against another, compare the spec sheets. \$\endgroup\$ – Trevor_G Mar 17 '17 at 20:48
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    \$\begingroup\$ It is possible to have a tri-state buffer with schmitt trigger input characteristics. The details you want will vary widely between different logic families, but will be covered in the appropriate data sheets.. \$\endgroup\$ – Peter Bennett Mar 17 '17 at 20:52
  • \$\begingroup\$ Yes, I know Schmitt trigger is different thing from tri-state buffer. I want to know, for example, if I use tri-state buffer as a repeater in a simple circuit, will it make propagation delay less than that if I use schmitt trigger as a repeater in that same circuit ? If so then why ? \$\endgroup\$ – Tahseen Adit Mar 17 '17 at 21:25
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If strongly driven with fast edges, your choice of delay comes down to technology and # internal inverters.

Again, you want small geometry CMOS, with just one or 2 stages on Inverters. Examine the delays of non-inverting TriStage buffers; the TriState circuit is merely an Inverter with extra FETS, to enable or disable; to maintain data polarity, at least one more inverter is needed.

schematic

simulate this circuit – Schematic created using CircuitLab

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