LM239A-EP: How to terminate an unused comparator

Paul Marchese

Part Number: LM239A-EP

Dear TI,

I'm using your LM239A-EP part in a design. I'm using three out of the four comparators. How do I terminate the unused comparator?

Regards,

Paul M.

+1 Clemens Ladisch over 3 years ago

Guru 256980 points

Tie the inputs to different voltages, and leave the output open. See section 5.1.2 of the Application Design Guidelines for LM339, LM393, TL331 Family Comparators. (Those 10 kΩ resistors are necessary only if GND can have a higher voltage than an input at any time.)

0 Chuck Sins over 3 years ago in reply to Clemens Ladisch

Thanks Clemens

here is the link to the app note www.ti.com/.../snoaa35a.pdf

Chuck

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