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.
This paper presents a low-power and compact automatic gain control circuit which consumes only 1.3 mW and occupies only 0.008 mm2 fabricated in TSMC 0.18-µm CMOS technology. The core of the proposed AGC is a variable gain amplifier (VGA) implemented by Gilbert cells and an exponential function circuit for dB linearity of gain control. The dynamic range of the AGC is from −10 dB to 50 dB. The operation...
This paper presents a low-power and small-size variable gain amplifier (VGA) which consumes only 1.1mW and occupies only 132um × 59um in 0.18-um CMOS technology. The proposed circuit is implemented by Gilbert cells and an exponential function circuit for the dB linearity of the gain voltage. The gain of the VGA can be varied linearly in dB from −10dB to 50dB with respect to a control voltage from...
A fifth-order Gm-C low-pass filter, which employs source degeneration linearization technique, used in analog frontend anti-aliasing is presented. This filter was simulated in the TSMC 0.18-µm CMOS process design kit (PDK) with 5-fF/µm2 MIM capacitors. This simulated filter features corner frequency of 20MHz, power consumption less than 4mW, supply voltage of 2V, THD of 1% at 260mVpp. The total area...
Objective To investigate the efficacy of external application of Eleutherosides ointment on Shenque (CV 8) for treating sleep deprivation. Methods Twenty four healthy young male volunteers at the age of19–22 years old were randomly allocated to 4 groups (normal, model, treatment and control groups). Sleep was deprived for 48 hours except the normal group. Self-made Eleutherosides compound preparation...
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.