Amplifiers/Converters??
How to stabilize transimpedance amp
Keywords:Transimpedance amplifiers? sensors? photodiode-to-voltage?
Transimpedance amplifiers (TIAs) are widely employed to translate the current output of sensors such as photodiode-to-voltage signals, since many circuits and instruments can only accept voltage input. An operational amplifier with a feedback resistor from output to the inverting input is the most straightforward implementation of such a TIA. However, even this simple TIA circuit requires careful tradeoffs among noise gain, offset voltage, bandwidth, and stability. Clearly stability in a TIA is essential for good, reliable performance. This application note explains the empirical calculations for assessing stability and then shows how to fine-tune the selection of the feedback phase-compensation capacitor.
View the PDF document for more information.
Originally published by Maxim Integrated Products at www.maxim-ic.com as "Stabilize Your Transimpedance Amplifier".
Related Articles | Editor's Choice |
Article Comments - How to stabilize transimpedance amp
Visitor(To avoid code verification, simply login or register with us. It is fast and free!)
?
Top Ranked Articles
?
Webinars
Visit Asia Webinars to learn about the latest in technology and get practical design tips.