Question:

Can the LM339N work as an inverter?

by  |  earlier

0 LIKES UnLike

Can this (http://www.datasheetcatalog.org/datasheet/motorola/MC3302P.pdf) quad op amp work as an inverter if you follow the Vcc being +5 and the GND being Ground (0V)??

Its marked different than most amplifiers and seems to desire only +5 and ground, but for some reason I cannot invert a +4V signal to a -4V signal....is this out of this particular op amp's scope?

 Tags:

   Report

2 ANSWERS


  1. You can connect a bipolar power supply to the amplifier V+ and V- terminals (like: +12V to V+ and -12V to V-).  Then if you connect the op amp as an inverting amplifier with a gain of -1, you can put +4V on the input and get -4V at the output.

    So long as your power supply voltages are at least a couple of volts greater than the input voltage, it will behave (12V >> 4V, -12V << -4V)

    .


  2. It's not an op amp, it's a quad comparator.

    To use as an inverter, just put your signal into the - input. Set the + input to a fixed 2 volts.

    Actually, that is a simplification, as the + input should be used for hysteresis.

    Did you think of looking at the data sheet? look on page 11, bottom of the page.

    .

Question Stats

Latest activity: earlier.
This question has 2 answers.

BECOME A GUIDE

Share your knowledge and help people by answering questions.