Design and simulation of fourth order low-pass Gm-C filter with novel auto-tuning circuit in 90 nm CMOS

2021 ◽  
Author(s):  
Mohammad Abdolmaleki ◽  
Massoud Dousti ◽  
Mohammad Bagher Tavakoli
Keyword(s):  
Fourth Order ◽  
Low Pass ◽  
Tuning Circuit ◽  
Auto Tuning

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.

A 0.3 V, 56 dB DR, 100 Hz fourth order low-pass filter for ECG acquisition system

2019 ◽  
Vol 94 ◽  
pp. 104652 ◽  
Author(s):  
P. Sreenivasulu ◽  
G. Hanumantha Rao ◽  
S. Rekha ◽  
M.S. Bhat
Keyword(s):  
Fourth Order ◽  
Acquisition System ◽  
Pass Filter ◽  
Low Pass Filter ◽  
Low Pass

scholarly journals A 5.5mW 80-400MHz Gm-C low pass filter with a unique auto-tuning system

2011 ◽  
Vol 8 (13) ◽  
pp. 1034-1039 ◽  
Author(s):  
Ting Gao ◽  
Wei Li ◽  
Yunfeng Chen ◽  
Ning Li ◽  
Junyan Ren
Keyword(s):  
Pass Filter ◽  
Low Pass Filter ◽  
Low Pass ◽  
Auto Tuning

Novel mechanical antialiasing fiber-optic hydrophone with a fourth-order acoustic low-pass filter

2008 ◽  
Vol 33 (11) ◽  
pp. 1267 ◽  
Author(s):  
Zefeng Wang ◽  
Yongming Hu ◽  
Zhou Meng ◽  
Hong Luo ◽  
Ming Ni
Keyword(s):  
Fourth Order ◽  
Fiber Optic ◽  
Pass Filter ◽  
Low Pass Filter ◽  
Low Pass

A CMOS Fourth-Order 150Hz Low-Pass Filter for Sensor Applications

2013 ◽  
Vol 380-384 ◽  
pp. 3320-3323
Author(s):  
Chang Chun Dong ◽  
Nan Nan Liu ◽  
Zhan Peng Jiang
Keyword(s):  
Fourth Order ◽  
Cutoff Frequency ◽  
Cmos Process ◽  
Sensor Interface ◽  
Pass Filter ◽  
Low Pass Filter ◽  
Sensor Applications ◽  
Low Pass ◽  
Cascade Structure ◽  
Simulation Results

A low-pass filter for the sensor is presented, which based on the linearized transconductance structure and the capacitance scaler schemes. The filter adopt fourth order cascade structure, and simulation by 0.5μm CMOS process. Simulation results for the filter show a cutoff frequency of 150Hz, while band ripple is less than 0.8 dB. The power consumption for the filter is only 1.6mW, meet the requirements of the sensor interface ASIC for low-pass filter.

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