Electronic – 3.3V controlled with 1.6V

transistors

I have 0V/1.6V input signal comming to my device and I have to use it as 'Enable' signal to one of the ICs, which accepts 0V/3.3V levels.

To build such a level shifter generally I know I should connect input to transistor base, +3.3V to collector and 'Enable' to emitter.

Additional requirements are:
1) I have to take minimum current from the source as possible -> base resistor must be big enough.
2) When there is 0V on the input, in reality there will be some small signal due to capacitance -> base resistor can't be too big to discharge it.

Could you please help me with it? I don't have practical knowledge, I don't know how to build it.

Best Answer

Here is a non inverting level shifter that may do what you want;

level shifter

Here is a simulation result;

enter image description here

Depending on speeds and current limits, you can adjust the resistor values to get the balance you need.