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.
A low noise single-ended to differential linear switched capacitor variable gain amplifier (SC-VGA) is designed in a 0.18μm CMOS technology for 4MHz center frequency (fs) 26-MHz ultrasound imaging. To fit the higher source impedance from gradually scaled piezo-electric transducers (PZT) in ultrasound imaging systems, a charge sampling amplifier with a fixed integration time as the first stage exhibits...
A low noise single-ended to differential linear two-stage switched capacitor variable gain amplifier (SC-VGA) is designed in a 0.18μm CMOS technology for 4MHz center frequency (fc) ultrasound imaging. To simplify the clock generator and improve linearity, the voltage sampling technique is adopted to replace the charge sampling for sake of the source impedance of piezo-electric transducers (PZT) not...
This paper describes the design of a low-noise amplifier for ultrasound receiver application. The receiver consists of a transimpedance amplifier (TIA) followed by a current feedback amplifier (CFA) and an output buffer stage to drive a 75Ω coaxial cable. The design is optimized in terms of noise and bandwidth for capacitive micromachined ultrasonic transducer (CMUT). Amplifier design issues such...
This paper describes the design of a low-noise amplifier for ultrasound receiver application. The receiver consists of a transimpedance amplifier (TIA) followed by a current feedback amplifier (CFA) and an output buffer stage to drive a 75Ω coaxial cable. The design is optimized in terms of noise and bandwidth for capacitive micromachined ultrasonic transducer (CMUT). Amplifier design issues such...
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.