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Might this tri-state level shifter work?

Yes, this should work. A floating input is pulled to midsupply, which turns off both transistors, giving a floating output. The comparators would have to have push-pull outputs; open-drain outputs ...
Hearth's user avatar
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1 vote
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Might this tri-state level shifter work?

Might something like this actually work? Does it already exist and what is it called? Yes, this does work. Looking at the circuit, it is two open-drain (open-collector) non-inverting buffers, one p-...
Fabio Barone's user avatar
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1 vote

Might this tri-state level shifter work?

Yes, voltage translators without direction pins exist. They depend on the driving output being able to overpower the drivers, under all possible conditions. It may be difficult to guarantee that with ...
Spehro Pefhany's user avatar
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Logic translator between different ground references

The solution I've settled on is the Texas Instruments ISO652x family of isolators. They are two channels, which is one channel more than I need, but they are simple to implement, even if overkill for ...
mattmunee's user avatar
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Logic translator between different ground references

This app note describes a method to both up-convert and down-convert between separate ground references: http://www.union-ic.com/Upload/APP/Level%20shifter%20for%20high%20speed%20and%20wide%20voltage%...
Kevin's user avatar
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Level shifting with a voltage reference of 1.6V

The following circuit should shift your input voltage by 1.6 V. simulate this circuit – Schematic created using CircuitLab Here is the plot of input to output so that you can verify that this ...
Math Keeps Me Busy's user avatar
1 vote

I2C Level Shifting (Adafruit breakouts)

I²C indeed is bidirectional, so on which side the master and slave are placed does not matter. (And it is possible to have multiple masters.) But these boards are not only level shifters: On one side ...
CL.'s user avatar
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I2C Level Shifting (Adafruit breakouts)

The products are more than just I2C level shifters. These also convert a 5V supply down to 3.3V, or a 3.3V supply up to 5V. Which is why you have two different products. If you just need a level ...
Justme's user avatar
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Is it possible to design a circuit with an op-amp that always keeps the output voltage 1 volt higher than the input voltage?

Use a Differential Amplifier. Here is a typical schematic. To get the -1V voltage source you can use a resistive divider from a voltage reference. If you do it this way, make sure the parallel ...
Airpower's user avatar

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