Pulse Amplifier

Hi
Can someone please tell me how to amplify a pulse signal out of arduino from 5v in amplitude up to 15v pulse signal so I can use the amplified pulse to trigger a converter?


i tried using SN7416( hex buffer/ inverter ) but i don't know how i should do it

Thanks

You need to connect the output of the SN7416 to +15V via a 10K resistor then the logic output will be 15V CMOS compatible

I have 1100 ohm (2w) resistors
I don't get what you mean please can you demonstrate more, i really really appreciate it.

Look at the datasheet for the SN7416, each buffer has an output associated with a input, the output is open collector this needs to be tied up to the +15V rail, to allow for the 5V input swing to be translated into a 15V output swing, it wont however pull down to exactly 0V, thats why I say it's CMOS compatible "look at the input voltage range for 15V CMOS", and check that the 15V input you are driving into, has the same input characteristics.

If you want I will draw you a picture, if that helps

You can use the 1100R 2W resistors

can you please check the drawing
I don't get the CMOS part. Should i use a cmos stagea after inverting ?

Your drawing is right

CMOS input means that the logic 0 has to be less than 4V for a logic 0 and greater than 11V for a logic 1, look at the datasheet for the SN7416 and see That the VOL is about 0.4V which means you should be ok

For a login input swing of 15V which is logic it is usually CMOS

Patrick

Mr.Patrick
Do you think I am missing something? Should it work like this ? should i make the 7416 vcc 15v or as rated in the datasheet only 7v.

The Vcc on the 7416 should be the same as the Vcc on the AVR on the arduino board.
cheers,
Richard