Abstract
The infrared readout circuit is a highly integrated circuit that integrates various functions into a single semiconductor chip. As the important part of readout circuit, the operational amplifier (OPA) decides the performance of the readout circuit. This paper describes a kind of OPA, which is used in infrared focal plane array (IRFPA) readout circuit structure based on the capacitive trans-impedance amplifier (CTIA) including the analysis and design of the OPA. Spectra is employed to simulate the circuit and obtain the results which is according with the designed objectives. The open-loop gain reaches 101 dB and the phase margin is 87°with the ICMR (input common-mode range) ranging from 201.6 mV to 4.01 V．
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
