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ADA4638: FAQs Temperature sensing Using Zero Drift Op Amps

Q.

I am looking for an op amp to signal condition a low frequency (<100Hz) temperature sensor. I need a high precision amplifier with good offset voltage and drift. What are the appropriate amplifiers that you recommend?

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A.

For industrial applications, where high supplies are available (+/-15V), consider the ADA4638-1. The ADA4638-1 is a high voltage, high precision, zero-drift amplifier. With no 1/f noise, it is suitable for low frequency temperature measurement.

http://www.analog.com/en/precision-op-amps/high-supply-voltage-amplifiers/ada4638-1/products/product.html

For mid voltage supplies (+/-8V), consider the AD8638/AD8639.

http://www.analog.com/en/all-operational-amplifiers-op-amps/operational-amplifiers-op-amps/ad8638/products/product.html

For low voltage supplies (5V), consider the ADA4528-1.

http://www.analog.com/en/precision-op-amps/low-offset-voltage-amplifiers/ada4528-1/products/product.html

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