A Novel CMOS Constant-Bandwidth Variable-Gain Amplifier for WiMAX Receivers

Güngördü A. D., Tarim N.

10th International Conference on Electrical and Electronics Engineering (ELECO), Bursa, Turkey, 30 November - 02 December 2017, pp.481-484 identifier

  • Publication Type: Conference Paper / Full Text
  • City: Bursa
  • Country: Turkey
  • Page Numbers: pp.481-484
  • Istanbul Technical University Affiliated: Yes


In this study, a novel variable-gain amplifier (VGA) is proposed. A mathematical analysis of the circuit is given. The proposed circuit keeps a constant current flowing through the load transistors and provides a constant bandwidth over the voltage gain range. The circuit is designed with TSMC 180 nm CMOS technology, using 1.8 V single supply voltage and simulated with Cadence Analog Virtuoso.