Noise and Bandwidth Consideration in Designing Op-Amp Based Transimpedance Amplifier for VLC

Adiono, Trio; Putra, Rachmad Vidya Wicaksana

doi:10.11591/eei.v7i2.870

Cited by 9 publications

(6 citation statements)

References 28 publications

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“…Both of these noise sources can really disturb the data transfer if not minimized The target of this research is to design the TIA circuit for Visible Light Communication platform. Thus, the received signal in receiver can be processed with low error and correctly.in the previous research, noise on the trans-impedance amplifier (TIA) domain has already been explained [29] but the expanation is only limited on the analytical calculus based on the article [30]. On this paper, noise profile of the same domain (i.e.…”

Section: Introductionmentioning

confidence: 91%

Noise Analysis in VLC Optical Link based Discrette OP-AMP Trans-impedance Amplifier (TIA)

2017

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To design Visible Light Communication (VLC) system, there are several requirements that needs to be met. One of the requirements is an active component selection (e.g. Op Amp). As an ideal communication system, VLC system has to be able to provides wide bandwidth access with minimum noise. The Transimpedance amplifiers (TIAs) is one of main components in optical system which is placed in the first stage of receiver system. It is used to convert the current output from photodiode to voltage. We have designed a 1 MHz fGBW TIA with low noise (in µVrms range). This paper aims to explain the design and implementation of TIA circuit with photovoltaic topology which cover empirical calculations and simulation of TIA's bandwidth and its noise sources, i.e. resistor feedback noise, current noise, voltage noise and total noise based on RSS. The OP-AMP is chosen from Texas Instruments product, OPA 380, and photodiode is chosen from OSRAM, SFH213, then simulated by TINA-TI SPICE® software. The noise in TIA circuit is analyzed clearly. The developed kit is ready to be implemented in VLC system.

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Section: Introductionmentioning

confidence: 91%

Noise Analysis in VLC Optical Link based Discrette OP-AMP Trans-impedance Amplifier (TIA)

2017

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“…The proposed Δ-Σ is derived from the different and summing nodes in a loop arrangement, where delta (Δ) signifies the difference operation in the input bits and sigma (Σ) denotes the summation or accumulation, as seen in Figure 3. The output of the Δ-Σ modulator in liner models can be stated as [24]:…”

Section: Analysis Delta-sigma Frequency Synthesizer Modulator Archite...mentioning

confidence: 99%

Optimizing frequency synthesizer performance based on passive adder entrenched technique for 4G communication systems

2022

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Noise in 4G communication systems is a pressing current problem. There are various ways to reduce phase noise. The sigma-delta passive adder entrenched (PAE) approach was chosen for the WCDMA system because it provides a spurious level, phase noise, and low stabilization time. Therefore, for WCDMA applications, this study proposes a frequency synthesizer. It is then suggested that the addition of a passive adder before the modulator's quantizer to eradicate any distortions created as a result of the quantization stage. The design factors for the suggested second order synthesizer for 4G are chosen based on the analytical results for all unit of the suggested system and in accordance with WCDMA specifications. The suggested PAE frequency synthesizer for the application of WCDMA reduces noise exact effectively, according to simulation findings. With this synthesizer, the in-band phase noise is -75 dBc/Hz. For frequency synthesizer simulation, MATLAB (R2020) is utilized.

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“…A 4-bit capacitive DAC1 with unit-segment-element as the first integrator is shown in Figure 2. The DWA logic circuit [22] is used to reduce the effect of nonlinearity errors in the DAC, which is caused by the condenser mismatch between the unit elements in a multi-bit DAC. Although the noise produced by the DAC2 condenser mismatch is fed into the -DAC modulator through the 2 nd integrator's output, the non-linear noise is created in the first order by the 1 st integrator.…”

Section: Proposed δς-Dac Modulator Implementation Passive Adder Entrenchedmentioning

confidence: 99%

Delta-sigma ADC modulator for multibit data converters using passive adder entrenched second order noise shaping

Nahar

Khleaf

2021

Bulletin EEI

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This paper introduces a multi-bit data converters (MDC) modulator of the 2nd order delta-sigma analog-to-digital converter use the passive adder proposed. The noise shaping quantizer can provide feedback that has generated quantization noise and perform additional shaping noise first-order by coupling noise method.Thus, two Integrator's with ring amplifier and the MDC is shaped by noise coupling quantizer know the 2nd-order noise coupled with somewhat of a DAC modulator. At a summing point, the inputs are summed and then filtered with a low pass filter. A cyclic second order response is generated with a data weighted averaging (DWA) technique in which the DACs ' outputs are limited to one of two states in the noise shaping responses. Mainly as a result of the harmonic distortion in circuits of amplifier. Transistor rate is equipped for the fully differential switched condenser integrator used, a comparator and DWA. The modulator with proposed DWA design, almost quarterly improved timing margin. A simulated SNDR of 92dB is obtained at 20 MHz sampling frequency; while a sinusoidal output of 4.112 dBFS is tested at 90µs besides 20 MHz as the bandwidth. The power consumption is 0.33 mW while the voltage of the supply is 1.2V.

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Noise and Bandwidth Consideration in Designing Op-Amp Based Transimpedance Amplifier for VLC

Cited by 9 publications

References 28 publications

Noise Analysis in VLC Optical Link based Discrette OP-AMP Trans-impedance Amplifier (TIA)

Noise Analysis in VLC Optical Link based Discrette OP-AMP Trans-impedance Amplifier (TIA)

Optimizing frequency synthesizer performance based on passive adder entrenched technique for 4G communication systems

Delta-sigma ADC modulator for multibit data converters using passive adder entrenched second order noise shaping

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