[Diy_efi] Temperature/Pressure sensors

[Carter Shore]

Well yeah, 
the LM335 specified temp range is -40 to 100 C.

But ISTR the poster asked for a cheap, easy way to
interface to an ADC.

cheap: At under $1.00 US in singles, you can buy a bag
of them, they are in effect consumables.

easy: Direct 10mV/degree K.

interface: 2 wires.

Cheap, accurate, reliable: choose 2

Carter Shore

--- Torbj?rn Forsman <torbjorn.forsman at gengas.nu>
wrote:

> The LM335 and most other IC temperature sensors
> (there are also some 
> with digital interface, for example I2C) have a
> reputation for bad 
> reliability in the field, especially in severe
> environments as in 
> vehicle engine compartments, heavy industry etc.
> There are good reasons 
> why all mass produced engine management systems
> still use NTC or nickel 
> resistance (PTC) temperature sensors instead.
> 



 
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