Continue to Site

Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

circuit to measure temperature using zener diode.?

Status
Not open for further replies.

ijalab

Junior Member level 1
Junior Member level 1
Joined
Jan 10, 2006
Messages
17
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,281
Activity points
1,395
using a diode to measure temperature

How a zener diode can be used for measuring temperature.
Explain?
-Bala
 

how to measure zener diode

Zener diodes have a tempco just like any other diode or bipolar. The difference is that the tempco can vary according to the zener rating. Reference diodes with a rating of 5.6V have a tempco close to zero. Below 5.6V the tempco is negative and above it is positive.

Zeners at 3.3V and 6.8V have tempco of similar magnitude than that of a transistor, namely 2-2.5mV/degC. This is handy if you need to cancel tempco's of zeners and transistors in circuits to obtain compensation.
 

Status
Not open for further replies.

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Back
Top