TPS7A83A: No External Bias, Bias pin floating or connecting to a capacitor?

Ting Ye

Part Number: TPS7A83A

Hello Team,

May I confirm with you that with no external bias, the correct connection of bias pin is floating or connecting it to a capacitor?

In Figure 48. ANY-OUT Configuration Circuit (no external bias) the bias pin connects to a external capacitor; however in 6.3 Recommended Operating Conditions note (3) it said If BIAS is not used, a capacitor on the BIAS pin is not needed. But I am not sure best connection to bias pin when there is no external bias.

Thank you!

Regards,

Ting

over 4 years ago

0 Jason Song over 4 years ago

TI__Mastermind 23361 points

Hi Ting,

Figure 48 is misplaced and it also shows the application with an external bias and with the external supply on bias, a capacitor is required. For your question, if no external bias is used, you can have bias pin floating or tied to ground and a capacitor is not needed.

Regards,
Jason Song

0 Ting Ye over 4 years ago in reply to Jason Song

TI__Genius 11800 points

Hello Jason,

Thank you for helping!

Regards,
Ting

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TPS7A83A: No External Bias, Bias pin floating or connecting to a capacitor?