Reconfigurable Low-Pass Filter for Analog Baseband of Bluetooth Low Energy and Biomedical Applications


ELECTRICA, vol.21, no.1, pp.142-150, 2021 (Journal Indexed in ESCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 21 Issue: 1
  • Publication Date: 2021
  • Doi Number: 10.5152/electrica.2021.20064
  • Title of Journal : ELECTRICA
  • Page Numbers: pp.142-150


In this study, we proposed a low-pass filter that dissipated very low power with dynamic threshold metal-oxide-semiconductor technique for Bluetooth low energy and biomedical applications of new portable Internet-of-Things devices. The operating frequency of the designed low-pass filter is between 750 and 1 MHz to meet the baseband requirements of Bluetooth and filter biomedical signals. The circuit uses two supplies to develop the performance of the circuit. The core circuit of the OTA-C filter operates on the sub-threshold region with +/- 0.2-V supply voltage, whereas the supply voltage of the biasing circuit is 0.6 V. The power consumption of the designed filter is 0.34 nW at 750 Hz and 376 nW at 1 MHz. The performance of the designed circuit is tested in Cadence environment with TSMC 0.18-mu m technology.