scholarly journals Design and Implementation of High Performance PPSK demodulator in Biomedical Implant

2021 ◽  
Author(s):  
Hima Bindu Katikala ◽  
G.Ramana Murthy ◽  
Yatavakilla Amarendra Nath
Keyword(s):  
Low Power ◽  
Hearing Aids ◽  
Data Transmission ◽  
High Performance ◽  
Large Scale ◽  
Analog Circuit ◽  
Supply Voltage ◽  
Pass Filter ◽  
Low Pass Filter ◽  
Low Pass

Abstract The important challenge for the realization of hearing aids is small size, low cost, low power consumption and better performance, etc. Keeping these requirements in view this work concentrates on the VLSI (Very Large Scale Integrated) implementation of analog circuit that mimic the PPSK (Passive Phase Shift Keying) demodulator with low pass filter. This research deals with RF Cochlear implant circuits and their data transmission. A PPSK modulator is used for uplink data transmission in biomedical implants with simultaneous power, data transmission This paper deals about the implementation of PPSK demodulator with related circuits and low pass filter which are used in cochlear implants consumes low power and operates at 14MHz frequency. These circuits are designed using FINFET 20nm technology with 0.4v DC supply voltage. The performance of proposed design over the previous design is operating at low threshold voltage, reduces static leakage currents and often observed greater than 30 times of improvement in speed performance

scholarly journals A CURRENT-MODE RMS-TO-DC CONVERTER BASED ON TRANSLINEAR PRINCIPLE

2015 ◽  
pp. 171-174
Author(s):  
MOHAMMAD HADI DANESH ◽  
SASAN NIKSERESHT ◽  
MAHYAR DEHDAST
Keyword(s):  
Low Power ◽  
High Performance ◽  
Supply Voltage ◽  
Circuit Complexity ◽  
Current Mode ◽  
Pass Filter ◽  
Low Pass Filter ◽  
Low Pass ◽  
Input Range ◽  
Low Supply Voltage

In this paper a low-power current-mode RMS-to-DC converter is proposed. The proposed converter includes absolute value circuit, squarer/divider circuit, low-pass filter and square root circuit which employ CMOS transistors operating in weak inversion region. The RMS-to-DC converter has low power consumption (<1μW), low supply voltage (0.9V), wide input range (from 50 nA to 500 nA), low relative error (<3 %), and low circuit complexity. Comparing the proposed circuit with two other current-mode circuits shows that the former outperforms the latters in terms of power dissipation, supply voltage, and complexity. Simulation results by HSPICE show high performance of the circuit and confirm the validity of the proposed design technique.

scholarly journals A CMOS CURRENT-MODE LOW POWER RMS-TO-DC CONVERTER

2015 ◽  
pp. 210-214
Author(s):  
MOHAMMAD HADI DANESH ◽  
MAHYAR DEHDAST ◽  
ABDOLGHANI AREKHI ◽  
AMIN EMAMI FARD
Keyword(s):  
Low Power ◽  
High Performance ◽  
Supply Voltage ◽  
Circuit Complexity ◽  
Current Mode ◽  
Pass Filter ◽  
Low Pass Filter ◽  
Low Pass ◽  
Input Range ◽  
Low Supply Voltage

In this paper a low-power current-mode RMS-to-DC converter is proposed. The converter includes two-quadrant squarer/divider and the first-order low-pass filter cell, both of them use MOS translinear loops. The RMS-to-DC converter has low power consumption (< 0.75μW), low supply voltage (0.8 V), wide input range (from 40 nA to 500 nA), low relative error (< 3 %), and low circuit complexity. Comparing the proposed circuit with two other current-mode circuits shows that the former outperforms the latters in terms of power dissipation, supply voltage, and complexity. Simulation results by HSPICE show high performance of the circuit and confirm the validity of the proposed design technique.

A Low Power Low-Pass Fourth-Order Filter for WiMAX/LTE Receiver in CMOS 45nm Technology

2016 ◽  
Vol 26 (03) ◽  
pp. 1750048 ◽  
Author(s):  
Vida Orduee Niar ◽  
Gholamreza Zare Fatin
Keyword(s):  
Low Power ◽  
Fourth Order ◽  
Supply Voltage ◽  
Pass Filter ◽  
Low Pass Filter ◽  
Power Filter ◽  
Order Filter ◽  
Source Follower ◽  
Low Pass ◽  
Circuit Technique

In this paper, a [Formula: see text]-[Formula: see text] low-pass and low power filter with tunable in-band attenuation for WiMAX/LTE receiver is presented. The fourth-order filter consists of two cascaded biquad stages. The source-follower (SF) stage is used as a key building block in these biquads. In this paper, we have presented a circuit technique to reduce the nonlinearity of the SF stage resulting from unmatched signal swings at the gate and source terminals of the input transistor. The proposed SF stage, is used for design of a linear biquad which is then utilized in a fourth-order Butterworth low-pass filter. The simulation results of the filter for bandwidth of 10 MHz show that the IIP3 of the filter is equal to 8.22[Formula: see text]dBm, in-band noise density is 100[Formula: see text]nV/[Formula: see text]Hz and power consumption is 5.9[Formula: see text]mW. The supply voltage of the filter is equal to 1[Formula: see text]V.

scholarly journals A 90 nm based CMOS biquad Low pass filter for 3 KHz wireless applications with 23.6 dB gain and low power

2020 ◽  
Vol 1706 ◽  
pp. 012062
Author(s):  
T Muruganantham ◽  
G Mohan ◽  
M Maheswari
Keyword(s):  
Low Power ◽  
Pass Filter ◽  
Low Pass Filter ◽  
Wireless Applications ◽  
Low Pass

A low power 8th order elliptic low-pass filter for a CMMB tuner

2011 ◽  
Vol 32 (9) ◽  
pp. 095002 ◽  
Author(s):  
Zheng Gong ◽  
Bei Chen ◽  
Xueqing Hu ◽  
Yin Shi ◽  
Fa Foster Dai
Keyword(s):  
Low Power ◽  
Pass Filter ◽  
Low Pass Filter ◽  
Low Pass

An experimental analog circuit realization of Matsuda’s approximate fractional-order integral operators for industrial electronics

2021 ◽  
Author(s):  
Murat Koseoglu ◽  
Furkan Nur Deniz ◽  
Baris Baykant Alagoz ◽  
Ali Yuce ◽  
Nusret Tan
Keyword(s):  
Fractional Order ◽  
Analog Circuit ◽  
Low Cost ◽  
Electric Circuit ◽  
Partial Fraction ◽  
Circuit Realization ◽  
Pass Filter ◽  
Low Pass Filter ◽  
Performance Improvements ◽  
Low Pass

Abstract Analog circuit realization of fractional order (FO) elements is a significant step for the industrialization of FO control systems because of enabling a low-cost, electric circuit realization by means of standard industrial electronics components. This study demonstrates an effective operational amplifier-based analog circuit realization of approximate FO integral elements for industrial electronics. To this end, approximate transfer function models of FO integral elements, which are calculated by using Matsuda’s approximation method, are decomposed into the sum of low-pass filter forms according to the partial fraction expansion. Each partial fraction term is implemented by using low-pass filters and amplifier circuits, and these circuits are combined with a summing amplifier to compose the approximate FO integral circuits. Widely used low-cost industrial electronics components, which are LF347N opamps, resistor and capacitor components, are used to achieve a discrete, easy-to-build analog realization of the approximate FO integral elements. The performance of designed circuit is compared with performance of Krishna’s FO circuit design and performance improvements are shown. The study presents design, performance validation and experimental verification of this straightforward approximate FO integral realization method.

Ultra Low-Power Low-Pass Filter Design for Wearable Biomedical Applications

2021 ◽  
Author(s):  
Diksha Thakur ◽  
Kulbhushan Sharma ◽  
Rajnish Sharma
Keyword(s):  
Low Power ◽  
Biomedical Applications ◽  
Filter Design ◽  
Pass Filter ◽  
Low Pass Filter ◽  
Ultra Low Power ◽  
Low Pass

A 0.5-V Ultra-Low-Power Low-Pass Filter with a Bulk-Feedback Technique

2019 ◽  
Author(s):  
Zexue Liu ◽  
Zhengkun Shen ◽  
Yi Tan ◽  
Haoyun Jiang ◽  
Heyi Li ◽  
...  
Keyword(s):  
Low Power ◽  
Pass Filter ◽  
Low Pass Filter ◽  
Ultra Low Power ◽  
Low Pass

scholarly journals Floating Active Inductor Based Trans-Impedance Amplifier in 0.18 μm CMOS Technology for Optical Applications

Electronics ◽  
2019 ◽  
Vol 8 (12) ◽  
pp. 1547
Author(s):  
Xiangyu Chen ◽  
Yasuhiro Takahashi
Keyword(s):  
Power Dissipation ◽  
Supply Voltage ◽  
Cmos Technology ◽  
Pass Filter ◽  
Low Pass Filter ◽  
Chip Area ◽  
Active Inductors ◽  
Low Pass ◽  
Optical Applications ◽  
Fifth Order

In this paper, a transimpedance amplifier (TIA) based on floating active inductors (FAI) is presented. Compared with conventional TIAs, the proposed TIA has the advantages of a wider bandwidth, lower power dissipation, and smaller chip area. The schematics and characteristics of the FAI circuit are explained. Moreover, the proposed TIA employs the combination of capacitive degeneration, the broadband matching network, and the regulated cascode input stage to enhance the bandwidth and gain. This turns the TIA design into a fifth-order low pass filter with Butterworth response. The TIA is implemented using 0.18 μ m Rohm CMOS technology and consumes only 10.7 mW with a supply voltage of 1.8 V. When used with a 150 fF photodiode capacitance, it exhibits the following characteristics: gain of 41 dB Ω and −3 dB frequency of 10 GHz. This TIA occupies an area of 180 μ m × 118 μ m.

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