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.
For radio-frequency (RF) circuits, energy harvesting is one of the research topics in recent years. By converting ambient energy into the required electrical energy, the circuit can still perform its functionality without any extra power source. In RF energy harvesting circuits, the most important part is the rectifier circuit. Therefore, this paper proposes an automated design tool for CMOS multi-stage...
To overcome the defects of the current absolute optical encoders, a novel linear optical encoder with absolute imaging position is designed and constructed. Experimental analyses have been made in a special test system, and experiment results show that the novel linear optical encoder has submicron measurement accuracy, well reliability, high image collection frequency and lower manufacture cost.
A static CML frequency divider and a full differential low noise amplifier (LNA) with inductive peaking technique are designed for UWB system using SMIC 0.18-μm CMOS technology. Compact inductors are used for good performances and small chip area. Measurement results show that the operation range of divider is from 2 to 9GHz under 0dbm input power and power consumption is 3.6mW. The LNA achieves a...
A MOSFET-only reference is fabricated in 0.18 mum CMOS technology. It uses stacked transistors biased in weak inversion to shift the produced negative temperature coefficient to relax the requirement for the weighting gain. The temperature dependence and the supply sensitivity of the output are 127 ppm/degC and 6 mV/V, respectively. The chip occupies 0.004 mm2 and consumes less than 40 nW at 0.7 V...
A positive feedback technique that make possible the operation of operational transconductance amplifier (OTA) with very low supply voltage, down to 0.5V, is proposed. The MOSFETs providing quasi-linear temperature characteristic are used along with the proposed OTA to design a low voltage bandgap reference circuit. The 0.045-mm2 chip fabricated in SMIC 0.18-mum CMOS process generates 0.4V reference...
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.