A 48μW Analog Front End Circuit Design for an Ultrasonic Receiver 0.18μm CMOS. International Journal of Information and Electronics Engineering, [S. l.], v. 3, n. 1, p. 8–12, 2013. Disponível em: https://ijiee.org/index.php/ijiee/article/view/613. Acesso em: 20 apr. 2026.