AMSA84
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Hi guys,
I have a simple Schmitt Trigger, very well known by everyone.
The problem that I am trying to understand is: the positive trip point (if we can called it that way), looking at the the hysteresis plot, is at something around 790mV. The negative trip point is around 700mV.
I wanted to test this by mounting a simple transient testbench using a piece wise waveform form like 3 triangles where 2of them passes through the trip points and one of them doesn't reach one of the trip point to confirm if it works.
The problem is that, the negative trip point is working correctly but the positive one is not. The input triangles when reach around 700mV the output of the Schmitt Trigger works, but when it comes to the positive one, the Schmitt Trigger only triggers around 900mV.
Anyone can suggest something?
I have a simple Schmitt Trigger, very well known by everyone.
The problem that I am trying to understand is: the positive trip point (if we can called it that way), looking at the the hysteresis plot, is at something around 790mV. The negative trip point is around 700mV.
I wanted to test this by mounting a simple transient testbench using a piece wise waveform form like 3 triangles where 2of them passes through the trip points and one of them doesn't reach one of the trip point to confirm if it works.
The problem is that, the negative trip point is working correctly but the positive one is not. The input triangles when reach around 700mV the output of the Schmitt Trigger works, but when it comes to the positive one, the Schmitt Trigger only triggers around 900mV.
Anyone can suggest something?