OPA4310: current-steering diodes

Yang Wu

Part Number: OPA4310

Tool/software:

Hi team,

I notice that OPAx310 features no current-steering diodes connected between the input and positive power supply pin. What's the purpose to design without current-steering diodes? Usually I see general amps have diodes in both positive and negative pins.

Thanks a lot.

Best regards,

Yang

4 months ago

0 Clemens Ladisch 4 months ago

Guru 285390 points

This allows you to connect the inputs to some signal before the opamp is powered up.

0 Robert Clifton56 4 months ago in reply to Clemens Ladisch

TI__Mastermind 24140 points

Hi Yang,

Clemens is correct. I'll also add we have this application note called Op Amp ESD Protection Structures that goes into much more details of these two different ESD structures. I recommend taking a look at it when you have time.

Best Regards,

Robert Clifton

0 Yang Wu 3 months ago in reply to Robert Clifton56

TI__Expert 3100 points

Hi Robert, Clemens,

Great! thanks for your help!

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OPA4310: current-steering diodes