DAC7760: Schmitt-trigger input specification

Oba

Part Number: DAC7760

Hello,

I have a question for DAC7760 specification.

The datasheet says that DIN pin and SCLK pin are Schmitt-trigger inputs.
Usually parameters like V_T+/V_T-/Hysteresis(V_T+ - V_T-) are specified for Schmitt-trigger inputs.
But this datasheet just defines V_IH and V_IL.
I think this V_IH/IL are not for these Schmitt-trigger type but for normal inputs

Could you tell me V_T+ and V_T- for these Schmitt-trigger inputs.
And there is “Hysteresis voltage” parameter in the datasheet in P9. Is it for these Schmitt-trigger inputs?

Regards,
Oba

over 4 years ago

0 Reza Abdullah over 4 years ago

TI__Intellectual 1570 points

Hello Oba,

You are right that the 'hysteresis voltage' parameter in the datasheet is for these schmitt-trigger inputs. ViH and ViL are specified in the datasheet because the DAC7760 is compatible with TTL logic levels and ViH and ViL needs important parameters for that. Practically, ViH/ ViL maps to VT+ and VT- respectively.

Regards

Reza

0 Reza Abdullah over 4 years ago in reply to Reza Abdullah

TI__Intellectual 1570 points

Hello Oba,

Does the explanation make sense and do you have any follow up questions? Please close this thread if it is well understood. Thanks.

Regards

Reza

0 Oba over 4 years ago in reply to Reza Abdullah

TI__Genius 16135 points

Hello Reza,

Thank you very much for your reply.

I'm very sorry, I just missed to close this thread.
I understand well.

Regards,
Oba

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DAC7760: Schmitt-trigger input specification