FDC1004: lifetime reduction

laurence babour

Part Number: FDC1004

Hi,

I want to use the FDC1004 as a load detector system (on: load and OFF: no load), but not as a measurement of capacitor. The component may then be saturated all the time.

will its lifetime be reduced? If yes, how much?

Thanks,

Laurence

over 7 years ago

0 Varn Khanna over 7 years ago

TI__Intellectual 2725 points

Hi Laurence,

By Load on/off, are you referring to detecting a presence of an object using a capacitive sensor?

If so, having the target object constantly within the detection range should not affect the lifetime of the FDC1004 device.

Regards,

Varn.

0 laurence babour over 7 years ago in reply to Varn Khanna

Prodigy 50 points

Hi Varm,

yes, the purpose of my measurements is to permanently detect an object. But maybe we are not going to work in the range of FDC1004 (we may not be using the CAPDAC to be in the range of the FDC1004). is this a long-term problem? or is it better to use the CAPDAC?

Regards

Laurence

0 Varn Khanna over 7 years ago in reply to laurence babour

TI__Intellectual 2725 points

Hi Laurence,

Have you considered evaluating our FDC2x1x products that have a high dynamic range and function on the principle of resonant sensing?

Regards,

Varn.

0 laurence babour over 7 years ago in reply to Varn Khanna

Prodigy 50 points

hi Varn,

thanks for your answer. I am going to look at the FDC2x1x more deeply.

I have another question: Can we use FDC1004 to measure capacitance of conductive liquids such as ink?

regards

Laurence

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FDC1004: lifetime reduction