A review on power reducing methods of neural recording amplifiers

Journal Title: روش های هوشمند در صنعت برق - Year 2016, Vol 7, Issue 27

Abstract

Implantable multi-channel neural recording Microsystems comprise a large number of neural amplifiers, that can affect the overall power consumption and chip area of the analog part of the system.power, noise, size and dc offset are the main challenge faced by designers. Ideally the output of the opamp should be at zero volts when the inputs are grounded.In reality the input terminals are at slightly different dc potentials.The input offset voltage is defined as the voltage that must be applied between the two input terminals of the opamp to obtain zero volts at the output. Amplifier must have capability to reject this dc offset. First method that uses a capacitor feedback network with ac coupling of input devices to reject the offset is very popular in designs.very small low-cutoff frequency.The second method employs a closed-loop resistive feedback and electrode capacitance to form a highpass filter.Moreover,The third method adopts the symmetric floating resistor the feedback path of low noise amplifier to achieve low-frequency cutoff and rejects DC offset voltage. .In some application we can use folded cascade topology.The telescopic topology is a good candidate in terms of providing large gain and phase margin while dissipating small power. the cortical VLSI neuron model reducing power consumption of circuits.Power distribution is the best way to reduce power, noise and silicon area. The total power consumption of the amplifier array is reduced by applying the partial OTA sharing technique. The silicon area is reduced as a benefit of sharing the bulky capacitor.

Authors and Affiliations

samira mehdipour, mehdi habibi

Keywords

Related Articles

Novel Fuzzy-IWO Method for Reconfiguration Simultaneous Optimal DG Units Allocation

This paper presents a new hybrid method for optimal multi-objective reconfiguration simultaneous determining the optimal size and location of Distributed Generation (DG) in a distribution feeder. The purposes of this res...

Designing PSS and SVC Parameters simultaneously through the Improved Quantum Algorithm in the Multi-machine Power System

As to the importance of power system performance in terms of quality, and stability, through flexible AC transmission system (FACTS) devices in power networks and coordinating these devices through power system stabilize...

Design and Simulation of a New Optimized Full-Adder Using Carbon Nano Tube Technology

The full adder circuit is one of the most significant and prominent fundamental parts in digital processors and integrated circuits since it can be used for implementing all four basic computational functions including:...

Ultra low voltage and low power 4-2 compressor using FinFET transistors

A compressor is basic building blocks of many arithmetic circuits. Design of smaller area, low power consumption and high speed compressor is always in demand. As the channel length approaches nanometer scale, the use of...

A New Approach in Designing Multi-Layer Frequency Selective Surfaces based on Tuning Pole-Zeros of Individual Layers

In this paper, a new approach (not new technique) is introduced for designing frequency selective surfaces (FSSs). We try to compose the desired frequency response using the frequency response of each constituent FSS. Al...

Download PDF file
  • EP ID EP319870
  • DOI -
  • Views 122
  • Downloads 0

How To Cite

samira mehdipour, mehdi habibi (2016). A review on power reducing methods of neural recording amplifiers. روش های هوشمند در صنعت برق, 7(27), 55-64. https://www.europub.co.uk/articles/-A-319870