About voltage application to the output terminal of ADA4857-2

Hi, 

We'll look into this and get back to you.

Hi, 

We don't usually drive the output with a voltage. However there is a provided Short-Circuit Current, sinking and sourcing, of 75mA under Output Characteristics for VS=5V. Having a resistor at the output pin would help limit the current.

Can you share what is you application? Is there a circuit after the ADA4857 as in the rough example, only for diagram, in the picture attached?

Thank you for your reply.

The configuration currently being considered is as shown in the figure.

Only one of the oscillators will work.
A 1Vp-p sine wave is applied to the output terminal of the AD4857-2 that is not operating.

Wouldn't such a configuration be recommended?

I would be grateful if you could reply.

Best Regards,
Knj

Thank you for your reply.

The configuration currently being considered is as shown in the figure.

Only one of the oscillators will work.
A 1Vp-p sine wave is applied to the output terminal of the AD4857-2 that is not operating.

Wouldn't such a configuration be recommended?

I would be grateful if you could reply.

Best Regards,
Knj

Hi,

Inputs below are based on the assumption the IC is powered down using the PD terminal and +5V is still applied to the supply voltages.

When voltage is applied to the output pin and it would be feedbacked to one of the input pins, the response of the IC is unpredictable and it might affect your circuit. However, the IC pins, input and output, are protected from high voltage. Just note that it is still within the values of absolute max in the datasheet.