[sdiy] best way to convert bipolar to Cmos compatible square/gate?

[Oscar Salas]

A common op-amp as comparator followed by a 30K resistor to the CMOS input
does the job.
CMOS input has clamping diodes to its rails. Maximum Rating is I think (
see your data-sheet) 10mA. So for a +/-15V supply a 30K will limit the
current through the clamping diodes about 5mA.



> At 02:47 PM 20/09/2012, dan snazelle wrote:
>>or is there a CMOS compatible comparator that reads a bipolar input
>>and puts out cmos compatible pulses?
>
> LT1011 or LT1011A, bipolar with ground referenced open collector output.
>
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