datasheets.com EBN.com EDN.com EETimes.com Embedded.com PlanetAnalog.com TechOnline.com  
Events
UBM Tech
UBM Tech
Welcome Guest Log In | Register

Amplifying High-Impedance Sensors — Photodiode Example

Authored on: Jun 20, 2007 by Kumen Blake and Steven Bible

Technical Paper / Application Note

0 0
More InfoLess Info

Embedded systems contain many types of sensors, used to sense events in the real world. They can be classified according to the role they play in the analog conditioning circuitry, such as voltage source, current source, resistive and capacitive (frequency-based). This application note discusses the analog conditioning circuit used for high-impedance sensors that act like current sensors. The design approach illustrated in this application note, using op amps, is broken down into four design steps: DC, stability compensation, closed-loop gain and noise reduction. A design using a PIN photodiode (light detector) illustrates the principles discussed.

View
 
0 comments
write a comment

Please Login

You will be redirected to the login page

×

Please Login

You will be redirected to the login page

×

Please Login

You will be redirected to the login page