THS4130: The allwable variance between VCC+ and VCC-.

zhijun yao

Part Number: THS4130

Tool/software:

For THS4130lD, what's the allwable variance between VCC+ and VCC-. like, VCC+/- being ±10V，then what the allowable variance between abs of VCC+ and VCC-.

3 months ago

0 Ignacio Vazquez Lam1 3 months ago

TI__Genius 12600 points

Hi,

The abs max for this device is 33V (VCC(+) - VCC(-)). Anything beyond this point will likely lead to damage and or failure of the device.

Best Regards,

Ignacio

0 zhijun yao 3 months ago in reply to Ignacio Vazquez Lam1

Prodigy 20 points

Thank you Ignacio.

Let me explain my question further. Like Vcc+ =10V, then Vcc-=-9.5V, ok? Or Vcc- has to be more close to -10V, like, -9.99V.

+1 Ignacio Vazquez Lam1 3 months ago in reply to zhijun yao

TI__Genius 12600 points

Hi Zhijun,

The scenario you shared should not be an issue. The abs max spec is saying that at any point the max supply across the device has to be 33V or under. For your example, (10V) - (-9.5V) = 19.5V, which is still under the 33V threshold. In general, small variance in the supplies will not be something that would damage a device as long as it doesn't go beyond the abs max limit. Therefore, having +10V and -9.5V will not be a concern for the device.

Best Regards,

Ignacio

0 zhijun yao 3 months ago in reply to Ignacio Vazquez Lam1

Prodigy 20 points

if VCC+=10 vs VCC-=9.5V, it will impact the output accuracy?

0 Ignacio Vazquez Lam1 3 months ago in reply to zhijun yao

TI__Genius 12600 points

Hi Zhijun,

No, it will not be an issue, devices can have asymmetrical supplies and behave as expected.

Best Regards,

Ignacio

0 zhijun yao 3 months ago in reply to Ignacio Vazquez Lam1

Prodigy 20 points

Thank you Ignacio.

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THS4130: The allwable variance between VCC+ and VCC-.