AMC1311-Q1: what is the output when VIN=-0.5V

Sherry Liang

Genius 10255 points

Part Number: AMC1311-Q1
Other Parts Discussed in Thread: AMC1311,

Dear team,

If the VIN-GND1=-0.5V, what is the output behavior? We only list the output behavior when VIN>-0.1V.

Thanks & Best Regards,

Sherry

over 3 years ago

0 Tom Hendrick over 3 years ago

TI__Guru**** 181511 points

Hi Sherry,

The specified linear range of the AMC1311 is from -0.1V to +2V, so that is why Figure 48 is limited in its negative range.

0 Sherry Liang over 3 years ago in reply to Tom Hendrick

TI__Genius 10255 points

Ok, then what is the output behavior when VIN=-0.5V?

0 Tom Hendrick over 3 years ago in reply to Sherry Liang

TI__Guru**** 181511 points

Hi Sherry,

It's 'undefined' - the outputs will start to clip and will look distorted.

0 Sherry Liang over 3 years ago in reply to Tom Hendrick

TI__Genius 10255 points

Hi Tom,

Thanks for your reply!

Our device's output will connect to one amplifier's input, and the input's absolute minimum voltage rating is -0.5V. In the customer's system, there is VIN=-0.5V condition for AMC1311-Q1, so we want to know whether the output will exceed -0.5V at this condition/VIN=-0.5V?

Thanks & Best Regards,

Sherry

+1 Tom Hendrick over 3 years ago in reply to Sherry Liang

TI__Guru**** 181511 points

Hi Sherry,

There is nothing inside the AMC1311 that can drive its output below ground.

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AMC1311-Q1: what is the output when VIN=-0.5V