Ultra-low-power, class-AB, CMOS four-quadrant current multiplier
نویسندگان
چکیده
A class-AB four-quadrant current multiplier constituted by a class-AB current amplifier and a current splitter which can handle input signals in excess of ten times the bias current is presented. The proposed circuit operation is based on the exponential characteristic of BJTs or subthreshold MOSFETs. The multiplier is designed using the latter devices and achieves very low power consumption. Simulation results show that from a 0.65 V supply, the proposed circuit consumes 12.4 nW static power while less than 230 dB total harmonic distortion is achieved for an input modulation index up to 10.
منابع مشابه
Versatile Dual-Mode Class-AB Four-Quadrant Analog Multiplier
Versatile dual-mode class-AB CMOS four-quadrant analog multiplier circuit is presented. The dual translinear loops and current mirrors are the basic building blocks in realization scheme. This technique provides; wide dynamic range, wide-bandwidth response and low power consumption. The major advantages of this approach are; its has single ended inputs; since its input is dual translinear loop ...
متن کاملLow-Power Fully Differential Ultra-Wide Band CMOS Multiplier for FM-UWB and IR-UWB Systems
A CMOS low-power four-quadrant multiplier for Ultra-Wide Band (UWB) systems using FM-UWB and Impulse Radio (IR) is presented. A set of transconductors, rather than the traditional Gilbert cell, is employed. The configuration is simple and area saving. The simulated result shows: An average gain of 22.5 dBV−1 and 20.8 dBV−1 in the bandwidth of 700 MHz at 1.2 GHz and 4 GHz center frequencies, res...
متن کاملA Novel ±0.5V Ultra High Current Drive and Output Voltage Headroom Current Output Stage with Very High Output Impedance
A novel ultra-high compliance, low power, very accurate and high output impedance current output stage (COS) with extremely high output current drive capability is proposed in this paper. The principle of operation of this unique structure is discussed, its most important formulas are derived and its outstanding performance is verified by HSPICE simulation in TSMC 0.18µm CMOS, BSIM3, and Level4...
متن کاملAn analog CMOS four quadrant current-mode multiplier for low power artificial neural networks implementation
A CMOS four-quadrant analog multiplier circuit for neural networks integrated circuit implementation is presented. By applying differential balanced current mode signals (both for the input, output and weight signals) the multiplication function is easily implemented through two translinear loops. The multiplier exhibits low power consumption (the dc current is 250 nA under a differential power...
متن کاملAnew high speed and low power four-quadrant CMOS analogmultiplier in currentmode
In this paper a new CMOS current-mode four-quadrant analog multiplier and divider circuit based on squarer circuit is proposed. The dual translinear loop is the basic building block in realization scheme. Supply voltage is 3.3V. The major advantages of this multiplier are high speed, low power, high linearity and less dc offset error. The circuit is designed and simulated using HSPICE simulator...
متن کامل