Hi Sir,
My customer has a question about the response time of TMP114. Is it mean the user detects the temperature value once and needs to wait the response time once?
May I know if there have temp sensor device that can meet the below conditions?
±0.5°C maximum from –40°C to 125°C,
low power consumption simliar as TMP114 (current is uA level),
response time less than 10ms.
Hi Henry,
Thank you for posting to the Sensing forum.
Response time, as it is defined in section 7.5 of the TMP114 datasheet, refers to the time it takes for the sensor to respond to a 25 °C - 75 °C step input. This testing is accomplished by dipping the sensor into a stirred oil bath so that the temperature is rapidly increased from ambient to 75 °C. One time constant refers to ~63% of the step input, and this is what is specified in the datasheet.
Is it mean the user detects the temperature value once and needs to wait the response time once?
No, the time is takes for the temperature result to be read is the conversion time. With averaging off the TMP114 has a max conversion time of 7.5 ms, which should be sufficient for the customer's requirements.
Best regards,
Nicole
