термометр на lm335

per degree K, since a change of one degree C is equal to a change of

The factor of 10 millivolts per degree C is equivalent to 10 millivolts

DVM  to the output pin and the - end of the DVM to

directly in degrees C, connect the + lead from a high impedance

millivolts/degree) = 2.832 volts. To read the temperature of the LM335

reference voltage. It is adjusted to (2.982 volts - (25 degrees x 10

corresponding to 2.982 VDC. A reference circuit provides a zero

adjustment. The output of the LM335 is 10 millivolts per degree C, with

of two parts: The LM335 and its

use the +5V as an output to drive a meter or microcontroller.

convenience in case I want to power the circuit from +5V someday, or

The +5V on the "input" connector is as a

I hooked it up as a thermometer, based the National Semiconductor

thermal drift. I finally bought some the other day, and to check one

stability finally gave way to my fascination with a circuit with

I've been fascinated by the LM335 for

the outside terminals of the output connector, its display reads out in

Not too many parts. When a voltmeter is connected

An adaptation of an application note circuit for a 1 hour project.

http://www.projects.cappels.org