ESD Protection for Fully Differential Amplifier

Dan Xiao

Other Parts Discussed in Thread: THS4531, THS4121

Dear TI Support,

Does Fully Differential Amplifier (THS4121 or THS4531) have input overvoltage protection? If so, what is the max input current to the clamping diodes?

Thanks!

Dan

over 9 years ago

0 Loren Siebert 1 over 9 years ago

TI__Genius 13935 points

Hello Dan,

Those amplifiers do not have over-voltage protection. They have ESD protection that will provide limited over-voltage protection. We usually recommend no more than 10mA in the ESD protection circuits. They are designed for for very short time duration ESD events.

TI does offer external protection circuits. I can post a link if that would be helpful.

Regards,

Loren

0 Dan Xiao over 9 years ago in reply to Loren Siebert 1

Prodigy 110 points

Hi Loren,

Please post the link with input protection circuit for FDA. But I can use ESD (if THS4121 has) to protect FDA if the current is limited within 10mA.

Thanks!

0 Loren Siebert 1 over 9 years ago in reply to Dan Xiao

TI__Genius 13935 points

Hi Dan,

I'm sorry, I missed your request. Here is the link to the TI ESD protection products.

www.ti.com/.../esd-emi-protection-overview.page

Regards,
Loren

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ESD Protection for Fully Differential Amplifier