TMP117: Time Response

Sawan Patel

Part Number: TMP117

Hello,

We are planning to use TMP117 in one of our applications that is related to measure the body temperature. However, we have a question:

1) What is the response time of the TMP117 to obtain an accurate temperature value?

over 1 year ago

0 HarryG over 1 year ago

TI__Expert 5590 points

Hello Sawan,

By response time I assume you mean thermal response time?

If this is the case, from internal testing, the lowest observed thermal response time we've achieved with the TMP117 is 15.8 seconds in stirred oil. The conversion time of this device in one-shot mode is 15.5 ms.

To get the best possible response time for your setup I would recommend avoiding soldering the thermal pad on the TMP117 device and thermally isolating the sensor from other components on the board. I have also included a document which provides additional information and tips for obtaining the best possible thermal response for you device including PCB layout tips.

Document: https://www.ti.com/lit/an/snia021b/snia021b.pdf

I'm also including this additional document which includes additional information including PCB layout recommendations: https://www.ti.com/lit/eb/slyy161a/slyy161a.pdf?ts=1703202606407&ref_url=https%253A%252F%252Fduckduckgo.com%252F

Best Regards,

Harry

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TMP117: Time Response