International Journal of Computer Applications |
Foundation of Computer Science (FCS), NY, USA |
Volume 51 - Number 21 |
Year of Publication: 2012 |
Authors: Davender Singh, Ajay Shankar, Manoj Kumar |
10.5120/8324-1416 |
Davender Singh, Ajay Shankar, Manoj Kumar . A Study on Transimpedance Amplifier in 0.35 mm CMOS Technology. International Journal of Computer Applications. 51, 21 ( August 2012), 4-6. DOI=10.5120/8324-1416
This paper presents a design of the transimpedance amplifier using 0. 35µm CMOS technology. In the proposed transimpedance amplifier, feedback resistor RF of conventional transimpedance amplifier has been replaced by NMOS transistor as an active feedback resistor. This circuit operates at 3. 3V power supply voltage and for a photocurrent of 0. 5µA. The proposed transimpedance amplifier having low noise, high gain and large dynamic range. The simulated results of transimpedance gain in single stage and three stage transimpedance amplifiers is 4. 43 M? and 4. 39 M? at gate voltage of 0. 4V. Power dissipation of single stage and three stage transimpedance amplifier is 602. 04 µW and 1. 781mW at gate voltage of 2. 0V.