A new low-voltage operational transconductance amplifier with push-pull CMFB scheme for low-pass filter applications

2020 ◽  
Vol 123 ◽  
pp. 153298
Author(s):  
Pao-Hua Liao ◽  
Yuh-Shyan Hwang ◽  
Jiann-Jong Chen ◽  
Yitsen Ku ◽  
San-Fu Wang
Keyword(s):  
Low Voltage ◽  
Operational Transconductance Amplifier ◽  
Pass Filter ◽  
Low Pass Filter ◽  
Transconductance Amplifier ◽  
Low Pass

scholarly journals Inductanceless high order low frequency filters for medical applications

2022 ◽  
Vol 12 (2) ◽  
pp. 1299
Author(s):  
Noor Thamer Almalah ◽  
Faris Hasan Aldabbagh
Keyword(s):  
Integrated Circuit ◽  
Low Frequency ◽  
Negative Resistance ◽  
Acceptable Result ◽  
Pass Filter ◽  
Low Pass Filter ◽  
Transconductance Amplifier ◽  
Low Pass ◽  
Minimum Number ◽  
Order Butterworth Filter

<p>In this paper, a designed circuit used for low-frequency filters is implemented and realized the filter is based on frequency-dependent negative resistance (FDNR) as an inductor simulator to substitute the traditional inductance, which is heavy and high cost due to the coil material manufacturing and size area. The simulator is based on an active operation amplifier or operation transconductance amplifier (OTA) that is easy to build in an integrated circuit with a minimum number of components. The third and higher-order Butterworth filter is simulated at low frequency for low pass filter to use in medical instruments and low-frequency applications. The designed circuit is compared with the traditional proportional integral controller enhanced (PIE) and T section ordinary filter. The results with magnitude and phase response were compared and an acceptable result is obtained. The filter can be used for general applications such as medical and other low-frequency filters needed.</p>

scholarly journals Tunable Lossy and Lossless Grounded Inductors Using Minimum Active and Passive Components

2021 ◽  
Vol 11 (3) ◽  
pp. 171-190
Author(s):  
Tapas Kumar Paul ◽  
Suvajit Roy ◽  
Radha Raman Pal
Keyword(s):  
Power Dissipation ◽  
Maximum Output ◽  
Passive Components ◽  
Pass Filter ◽  
Low Pass Filter ◽  
Transconductance Amplifier ◽  
Low Pass ◽  
Component Matching ◽  
Band Pass ◽  
Electronically Tunable

In this contribution, nine new Grounded Inductance Simulators (GISs) using a single Multiple-Output Current Controlled Current Conveyor Transconductance Amplifier (MO-CCCCTA) and one grounded capacitor are proposed. Among them, two are lossless types and seven are lossy types. The use of a single grounded capacitor makes the circuits suitable for fabrication. All the proposed circuits are electronically tunable through the bias currents of MO-CCCCTA. Furthermore, no component matching conditions are needed for realizing them. The designed circuits are verified through PSPICE simulator with ± 0.9 V power supply. The simulation results show that for all the proposed circuits: maximum operating frequencies are about 12 MHz, power dissipation is less than 0.784 mW, Total Harmonic Distortions (THDs) are under 8.09%, and maximum output voltage noise at 1 MHz frequency is 14.094 nV/√Hz. To exhibit the workability of the proposed circuits, they are used to design band-pass, low-pass filter, parallel RLC resonator, and parasitic inductance cancelator.

A 0.25-V fifth-order Butterworth low-pass filter based on fully differential difference transconductance amplifier architecture

2019 ◽  
Vol 92 ◽  
pp. 104606 ◽  
Author(s):  
Paulo M. Pinto ◽  
Luís H.C. Ferreira ◽  
Gustavo D. Colletta ◽  
Rodrigo A.S. Braga
Keyword(s):  
Pass Filter ◽  
Low Pass Filter ◽  
Fully Differential ◽  
Transconductance Amplifier ◽  
Low Pass ◽  
Fifth Order

scholarly journals A 1-V 7th-Order SC Low-Pass Filter for 77-GHz Automotive Radar in 28-nm FD-SOI CMOS

Electronics ◽  
2021 ◽  
Vol 10 (12) ◽  
pp. 1466
Author(s):  
Alessandro Parisi ◽  
Giuseppe Papotto ◽  
Egidio Ragonese ◽  
Giuseppe Palmisano
Keyword(s):  
Low Voltage ◽  
Cmos Technology ◽  
Silicon On Insulator ◽  
Automotive Radar ◽  
Pass Filter ◽  
Low Pass Filter ◽  
Low Pass ◽  
Radar Applications ◽  
77 Ghz ◽  
28 Nm

This paper presents a switched capacitor low-pass filter in a 28-nm fully depleted silicon on insulator CMOS technology for 77-GHz automotive radar applications. It is operated at a power supply as low as 1 V and guarantees 5-dB in-band voltage gain while providing out-of-band attenuation higher than 36 dB and a programmable passband up to 30 MHz. A double sampling technique is adopted, which allows high operating frequency to be achieved while saving power. Moreover, low-voltage biasing and common-mode feedback circuits are exploited to guarantee an almost rail-to-rail output voltage swing. The proposed filter provides an output 1-dB compression point as high as 8.7 dBm with a power consumption of 9 mW. To the authors’ knowledge, this is the first SC-based implementation of a low pass filter for automotive radar applications.

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