We need to modify a transimpedance preamp used with an InGaAs large area photodiode. A PDF is attached showing the basic design (Fig. 3a, which is also attached as a JPEG). The modifications needed are as follows:
1) Our detector has a capacitance value in the 300-500 pF range (about 1/10 that in the PDF example).
2) We have only a single +5V su...
Skills: circuit design, electrical engineering, electronics