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.
An operational amplifier is described which uses separate loops to control the output voltage and the error voltage between its inputs. To a large extent this architecture combines the high-speed characteristics of “current feedback” amplifiers with the low input referred errors of precision architectures. The technique has been applied to produce an amplifier with precision characteristics comparable...
This paper is concerned with the design and optimization of continuous-time active-RC and gm-C filters. We demonstrate how we can maximize the filters' dynamic range (DR) for a given voltage swing, area and power consumption. Using closed-form symbolic expressions, the optimization problems are formulated as geometric programs (GPs) and mixed-integer GPs (MIGPs) that can be quickly solved to find...
This paper compares two complementary-metal-oxide semiconductor front-end transimpedance amplifiers (TIA) intended for use in optical biosensors. They are the shunt-feedback and current-mode circuits, the most widely used topologies for wideband operation. The former consists of a three-stage nested-Miller-compensated amplifier in noninverting mode with a photodiode bootstrapping and a controlled...
A high intercept points, cost-effective, and power-efficient switching FET double balanced mixer (DBM) is reported. The Switching FET DBM demonstrated in this work offers input intercept points (IIP3) and conversion loss typically 44 dBm and 8.5 dB respectively with 15 dBm LO power for the frequency band (RF: 900-2150 MHz, LO: 850-1950 MHz, IF: 50-200 MHz). The measured interport isolation is typically...
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.