TLV3542: Recommended Design

Zeming Kong

Expert 3515 points

Part Number: TLV3542
Other Parts Discussed in Thread: LMH6643

Hi team,

Do we have a recommended design for non-inverting circuit to deal with the oscillation?

We are designing a non-inverting circuit like below.

Op Amp: TLV3452 or LMH6643

Power: Single 5V

Gain: 1.5x ~ 2x

Input: 1V ~ 1.8V

I would appreciate it very much if you could provide a recommended design or some materials for reference.

Best,

Zeming

over 3 years ago

0 kai klaas69 over 3 years ago

Guru 140200 points

Hi Zeming,

what do you mean by "oscillation"? Oscillation due to a capacitive load at the output?

Kai

0 Zeming Kong over 3 years ago in reply to kai klaas69

TI__Expert 3515 points

Hi Kai,

Thanks for your reply.

Yes, I mean oscillation due to capacitive load, and maybe also due to phase/gain margin not enough.

Best,

Zeming

0 kai klaas69 over 3 years ago in reply to Zeming Kong

Guru 140200 points

Hi Zeming,

to recommend a suited circuit we would need to know the load specifications :-)

Can you tell us the load resistance and load capacitance of your application?

Kai

+1 Alec Saebeler over 3 years ago

TI__Genius 16441 points

Hi Zeming,

I am closing this ticket and marking it as resolved from my perspective; if you would like to continue this discussion please reach out here on e2e or to myself via email (using TI directory). We can always reopen this ticket and continue our discussion should you still have questions.

Best,

Alec

0 Zeming Kong over 3 years ago in reply to Alec Saebeler

TI__Expert 3515 points

Hi Alec,

I have asked my customer for more detail but no reply. I will contact you via email if necessary.

Best,

Zeming

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TLV3542: Recommended Design