A Fully Differential Variable Gain Amplifier for Portable Impedance Sensing Applications

Autores/as

  • Jorge Pérez Bailón
  • Jaime Ramírez-Angulo
  • Belén Calvo
  • Nicolás Medrano

DOI:

https://doi.org/10.26754/jji-i3a.003605

Resumen

This paper presents a Variable Gain Amplifier (VGA) designed in a 0.18 μm CMOS process to operate in an impedance sensing interface. Based on a transconductance-transimpedance (TC-TI) approach with intermediate analog-controlled current steering, it exhibits a gain ranging from 5 dB to 38 dB with a constant bandwidth around 318 kHz, a power consumption of 15.5 μW at a 1.8 V supply and an active area of 0.021 mm2.

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Publicado

2019-05-20

Cómo citar

Pérez Bailón, J., Ramírez-Angulo, J., Calvo, B., & Medrano, N. (2019). A Fully Differential Variable Gain Amplifier for Portable Impedance Sensing Applications. Jornada De Jóvenes Investigadores Del I3A, 7. https://doi.org/10.26754/jji-i3a.003605