Abstract:

The classic positive peak hold circuits are not suitable for high-speed acquisition due to narrow band,low conversion rate,poor linearity,and high droop rate,.This article proposes an improved thick film integrated laser signal hold circuit.According to the technical requirements,a closed loop is added with user assistance to charge and discharge the capacitor to achieve positive peak hold indicator.Simulation verifies the circuit design principles of modularity and its high reliability.

Key words: laser signal;sample and hold circuit;simulation;high-speed op amps;thick film integrated