Faithin Omaha eBook Collection

Download or read book Photodiode Amplifiers: OP AMP Solutions written by Jerald G. Graeme and published by McGraw Hill Professional. This book was released on 1996 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt: Light photons impinging upon a semiconductor material in the vicinity of a P-N junction release conduction carriers to produce current flow through the photodiode effect. Photodiode amplifiers convert this current to a voltage in a relationship that remains linear as long as the amplifier eliminates signal voltage swing from the photodiode. For this purpose, the simple current-to-voltage converter or transimpedance amplifier presents a virtual ground to the diode. However, when connected to a photodiode, this simple op amp circuit displays surprising multidimensional constraints that defy conventional op amp intuition.