The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Instrumentation amplifiers (IA) used in wearable biomedical monitoring systems have to satisfy several performance requirements, such as low-voltage supply and low-power consumption, enabling increased portability. In the same time, a very important feature is wide range parameter programmability. This paper proposes a solution to implement electronic gain programming into an IA. The proposed solution...
This paper presents a low-voltage current-reuse chopper-stabilized frontend amplifier for fetal ECG monitoring. The proposed amplifier allows for individual tuning of the noise in each measurement channel, minimizing the total power consumption while satisfying all application requirements. The low-voltage current reuse topology exploits power optimization in both the current and the voltage domain,...
This paper presents a High Common Mode Rejection Ratio(CMRR) Instrumentation Amplifier(IA) with Driven Right Leg(DRL) circuitry for Electrocardiogram(ECG) signal acquisition. The circuit is based on the current feedback topology. The high pass and lowpass filters are integrated into the IA. DRL is implemented to minimise the common mode noise. The present design is fabricated at UMC on 0.18µm CMOS...
We have developed a non-invasive system for monitoring cardiac vibrations, respiration and body movement of in-bed hospitalized patients and elderly people who need constant care. These physiological parameters are recorded by an infrared emitting diode and a photo transistor, which are attached between spring coils in bed mattress. The infrared emitting diode diffuses infrared light into the mattress...
A CMOS analog front-end (AFE) circuit for portable biomedical signals acquisition system is presented in this paper. A low-power instrumentation amplifier (IA) is chosen as an AFE circuit for portable biomedical application using simplified differential difference amplifier (DDA). The presented IA is designed in standard 0.18 mum 1P6M CMOS process technology at a 1.8-V supply voltage. The simulation...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.