LMH7324: LMH7324 does not work proprly with VCCI 2.5V VCCO 2.5V VEE -2.5V

Steve Sun

Part Number: LMH7324
Other Parts Discussed in Thread: TLV3604

I am going to use lmh7324 to convert and output LVDS signal. The evaluation manual has written the following description:

This demo board can operate with a simple dual supply of ±2.5V. The output voltages are now about
1.35V and 1.0V and comply with LVDS and RSPECL levels

But I use Tina simulation but it doesn't work properly. Why. If the VCCI is increased to 3.3V, it can work normally

Thank！！！

over 3 years ago

+1 kai klaas69 over 3 years ago

Guru 140200 points

Hi Steve,

when you enter the macro you will read this:

Kai

0 Joe Vanacore over 3 years ago in reply to kai klaas69

TI__Genius 17360 points

Hello Steve,

Thank you for your post. And as Kai pointed out, the model was not designed for ±2.5V operation.

My recommendation would be to take a look at our TLV3604 LVDS comparator. Both the model and the device can operate at the ±2.5V supplies you are using.

Best Regards,

Joe

Applications Engineer

Linear Amplifiers Business Unit | Comparators Product Line (CMPS)

All information in this correspondence and in any related correspondence is provided “as is” and “with all faults”, and is subject to TI’s Important Notice (http://www.ti.com/corp/docs/legal/important-notice.shtml)

0 Steve Sun over 3 years ago

Prodigy 10 points

Thanks Kai

0 Joe Vanacore over 3 years ago in reply to Steve Sun