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I have an interesting project and I could use a little help. I'm using a microcontroller who's input to the ADC and output on the GPIO and DAC pins are all within a 3.3V range, and I have to interface with a 15V logic controller. 

Can anyone tell me what would be the best way to convert down to 3.3V (assuming there's abettera better way than a resistive divider with a Zener to clamp) from 15V for the simple I/O, and how?

How to scale down properly for the ADC and scale up properly for the DAC? At least, does anyone know of an industry standard or commonly used driver chip for this?

I have an interesting project and I could use a little help. I'm using a microcontroller who's input to the ADC and output on the GPIO and DAC pins are all within a 3.3V range, and I have to interface with a 15V logic controller. Can anyone tell me what would be the best way to convert down to 3.3V (assuming there's abetter way than a resistive divider with a Zener to clamp) from 15V for the simple I/O, and how to scale down properly for the ADC and scale up properly for the DAC? At least, does anyone know of an industry standard or commonly used driver chip for this?

I have an interesting project and I could use a little help. I'm using a microcontroller who's input to the ADC and output on the GPIO and DAC pins are all within a 3.3V range, and I have to interface with a 15V logic controller. 

Can anyone tell me what would be the best way to convert down to 3.3V (assuming there's a better way than a resistive divider with a Zener to clamp) from 15V for the simple I/O?

How to scale down properly for the ADC and scale up properly for the DAC? At least, does anyone know of an industry standard or commonly used driver chip for this?

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Phil Frost
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I have an interesting project and I could use a little help. I'm using a microcontroller who's input to the ADC and output on the GPIO and DAC pins are all within a 3.3V range, and I have to interface with a 15V logic controller. Can anyone tell me what would be the best way to convert down to 3.3V (assuming there's abetter way than a resistive divider with a Zener to clamp) from 15V for the simple I/O, and how to scale down properly for the ADC and scale up properly for the DAC? At least, does anyone know of an industry standard or commonly used driver chip for this? Thanks!!

T

I have an interesting project and I could use a little help. I'm using a microcontroller who's input to the ADC and output on the GPIO and DAC pins are all within a 3.3V range, and I have to interface with a 15V logic controller. Can anyone tell me what would be the best way to convert down to 3.3V (assuming there's abetter way than a resistive divider with a Zener to clamp) from 15V for the simple I/O, and how to scale down properly for the ADC and scale up properly for the DAC? At least, does anyone know of an industry standard or commonly used driver chip for this? Thanks!!

T

I have an interesting project and I could use a little help. I'm using a microcontroller who's input to the ADC and output on the GPIO and DAC pins are all within a 3.3V range, and I have to interface with a 15V logic controller. Can anyone tell me what would be the best way to convert down to 3.3V (assuming there's abetter way than a resistive divider with a Zener to clamp) from 15V for the simple I/O, and how to scale down properly for the ADC and scale up properly for the DAC? At least, does anyone know of an industry standard or commonly used driver chip for this?

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Converting logic and sign

I have an interesting project and I could use a little help. I'm using a microcontroller who's input to the ADC and output on the GPIO and DAC pins are all within a 3.3V range, and I have to interface with a 15V logic controller. Can anyone tell me what would be the best way to convert down to 3.3V (assuming there's abetter way than a resistive divider with a Zener to clamp) from 15V for the simple I/O, and how to scale down properly for the ADC and scale up properly for the DAC? At least, does anyone know of an industry standard or commonly used driver chip for this? Thanks!!

T