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Getting crazy with an AD590

Getting crazy with an AD590JH simply connected to a resistor of 11k/1% :

+5V---- | AD590 | -------*-------------o 11kOhm ^ -- Vo | | --- 0V --- 0V

Vo should be about 11mV/K but I measure 2.7V as indoor temperature (-24 °C!!).

According to you, where I'm wrong?

Thanks in advance

Reply to
rossi
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My guess is that the resistor is too high given the suply voltage you have. I'd suggest decreating the resistor or increasing the supply voltage. The device needs a suppy voltage of 4 to 30 V, but with a 11 K resistor you have a lot less than that across the device.

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Dave K     MCSE.

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Reply to
Dave (from the UK)

The Analog Devices pdf shows a series resistor of about

1000 ohms with a 6 volt supply.
Reply to
amdx

amdx ha scritto:

Ok, I'll try. Is there some formula to obtain the resistor according to the supply?

Thanks to all.

Reply to
ZeroDue

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