Edge audio devices can reduce data bandwidth requirements by pre-processing input
speech on the device before transmission to the cloud. As edge devices are required to …

This paper presents a systematic method for decreasing the amount of transconductors used
by an operational transconductance amplifier-capacitor (OTA-C) filter to decrease the power …

Ultra-low-power circuits that can work under a low-voltage supply are in great demand in
future wearable biomedical applications, which tend to be integrated with low-output-voltage …

This paper presents a new low-voltage CMOS structure for operational transconductance
amplifier (OTA) exploiting the bulk-driven, the self-cascode and the multiple-input transistor …

A chopper instrumentation amplifier (IA) dedicated for bio-potential acquisition usually
requires a linearized input stage for large electrode offset voltage accommodation. This …

This paper presents a differential fourth-order lowpass filter suitable for electrocardiography
(ECG) acquisition. It is formed by cascading two compact and power-efficient biquads …

This paper presents a 0.5 V fifth-order Butterworth low-pass filter based on multiple-input
operational transconductance amplifiers (OTA). The filter is designed for electrocardiogram …

This paper develops a compact power-efficient CMOS buffer to operate as a nanopower
lowpass biquadratic cell. Unlike other recently reported CMOS biquads with passband gains …

We introduce a fully integrated configurable analog front-end (CAFE) sensor intended to
accommodate various types of bio-potential signals in this article. The proposed CAFE is …

A nanopower CMOS 4th-order lowpass filter suitable for biomedical applications is
presented. The filter is formed by cascading two types of subthreshold current-reuse …