OPA1622: Connecting OUT to GND to discharge of output pin during disable

Hirotaka Matsumoto

Part Number: OPA1622

Hi all

Would you mind we ask OPA1622?

Is it possible to connect OUT to GND to discharge of output pin during disable?
We assume that it must proceed the sequence as follows;
1. Disable operation
2. Short operation(Connecting OUT to GND)

Kind regards,

Hirotaka Matsumoto

over 7 years ago

0 kai klaas69 over 7 years ago

Guru 140200 points

Hi Hirotaka,

hmm, I would avoid a direct short circuit of output, if possible, and add a current limiting resistor for the case that the disable sequencing doesn't work properly.

Do you know this beautiful site? It discusses audio muting schemes:

sound.whsites.net/.../muting.html

Kai

0 Alex Davis over 7 years ago

TI__Genius 15470 points

Hi Hirotaka,
What is the problem you are trying to solve? When the OPA1622 is muted, the output will go into a high-impedance state, and grounding the output shouldn't be a problem.

Amplifiers

Amplifiers forum

OPA1622: Connecting OUT to GND to discharge of output pin during disable