Gain Stage Research Articles

Preparation and Effectiveness of a Nano-Modified Composite Gel Foam in Preventing the Spontaneous Combustion of Coal

ABSTRACT In China, coal is considered the cornerstone in the energy mix for ensuring the security of national energy production. With the increasing intensity and depth of coal seam mining in China, spontaneous coal combustion in goaf areas has become a major issue affecting mine safety. The development of a nano-modified composite gel foam to prevent the spontaneous combustion of residual coal was therefore investigated in the current study. Chemical modification through intercalation and grafting was found to significantly enhance the water retention performance of the antioxidant component. In addition, the optimal component ratios were determined using single-factor experiments and response surface methodology. The modified gel foam, consisting of 2.995 wt% gelling agent, 0.25 wt% foaming agent, 0.296 wt% crosslinker, 0.491 wt% foam stabilizer, 3.772 wt% nanoparticles, and 2.964 wt% modified antioxidant, demonstrated environmental friendliness. Thermogravimetric experiments showed that the critical temperature for achieving a significant increase in the dehydration rate rose from 80 to 120°C after modification. Compared with typical inhibitors, the nano-modified gel foam exhibited a superior performance in terms of preventing coal oxidation and spontaneous combustion, particularly at low temperatures. Oxidation during the oxygen absorption and weight gain stages was also effectively inhibited, and the high temperature combustion processes were suppressed.

A High-Resolution Discrete-Time Second-Order ΣΔ ADC with Improved Tolerance to KT/C Noise Using Low Oversampling Ratio.

This work presents a novel ΣΔ analog-to-digital converter (ADC) architecture for a high-resolution sensor interface. The concept is to reduce the effect of kT/C noise generated by the loop filter by placing the gain stage in front of the loop filter. The proposed architecture effectively reduces the kT/C noise power from the loop filter by as much as the squared gain of the added gain stage. The gain stage greatly relaxes the loop filter's sampling capacitor requirements. The target resolution is 20 bit. The sampling frequency is 512 kHz, and the oversampling ratio (OSR) is only 256 for a target resolution. Therefore, the proposed ΔΣ ADC structure allows for high-resolution ADC design in an environment with a limited OSR. The proposed ADC designed in 65 nm CMOS technology operates at supply voltages of 1.2 V and achieves a peak signal-to-noise ratio (SNR) and Schreier Figure of Merit (FoMs) of 117.7 dB and 180.4 dB, respectively.

A 99.99% current efficiency fast transient response capacitor-less LDO with feedforward compensation technique based on small-signal gain stage

An ultra-low power capacitor-less LDO with feedforward compensation technique based on the small-signal gain stage and composite transient enhancement structure is proposed. The feedforward compensation technique based on the small-signal gain stage reaches a low frequency zero ,by utilizing the compensating effect of the zero to relieve the adverse effects of the pole, thereby enhancing the stability and performance of the circuit. Furthermore, the small gain stage can adjust the quiescent current consumption,contributing to a significant reduction in system energy consumption. The proposed composite transient enhancement structure can reduce the transition time of the circuit, adjust the gain of the circuit under different operating conditions to achieve precise gain control and improve the transient performance of the system. The proposed LDO is designed using SMIC 0.18um CMOS process. The simulation results show the total quiescent current is 0.94uA and the current efficiency is up to 99.99%. The extremely low FoM value of 0.04 represents a good transient performance. Synthesizing the comparison of various parameters, the superiority of this design can be clearly concluded.

Comparison of Si CMOS and SiC CMOS Operational Amplifiers

In this study, we numerically compare the characteristics of Si and SiC CMOS operational amplifiers (OpAmp) using LTspice. According to prior researches, we set the device parameters for Si and SiC MOSFETs. The OpAmp consists of three stages: the input stage, the gain stage, and the output stage. We established three criteria for the OpAmp's operation: (1) a unity gain frequency of 1MHz, (2) an open-loop gain of at least 75dB, and (3) a phase margin of more than 60° when a load capacitance is 300pF. To achieve a unity gain frequency of 1MHz, we adjusted the values of the resistor and capacitor used for phase compensation. The supply voltage was set to be ±5V for the Si OpAmp and ±15V for the SiC one. Our numerical analysis of the frequency response shows that the Si OpAmp met all three criteria. In contrast, the SiC OpAmp, when faced with a load capacitor of 300pF, had a phase margin of 43.4°, falling below the 60° mark. For the SiC OpAmp, the frequency response declined rapidly when the supply voltage dropped to 10V or below.

A transient-enhanced output-capacitorless LDO regulator with non-inverting pull–push gain stage

A novel non-inverting pull–push gain stage output-capacitorless low-dropout regulator (OCL-LDO) is introduced, designed specifically for power management of system-on-chip (SoC). The incorporation of an innovative non-inverting gain stage (NIGS) serves to shift the non-dominant parasitic poles to higher frequencies, thereby enhancing the overall stability of the system. The proposed pull-push configuration markedly improves the slew rate limitation at the gate of the power transistor. Post-layout simulation outcomes, corroborated through a 180-nm CMOS fabrication process, indicate that the proposed LDO regulator maintains stability across a wide range of loading currents, from 0 mA to 100 mA, with a Miller compensation capacitance of only 3.5 pF. The circuit operates with a quiescent current of 143 μA when powered by a 1.5 V single supply. The LDO regulator boasts a dropout voltage of 300 mV, enabling it to deliver up to 100 mA of load current. Simulation results show that the undershoot voltage is only 63.7 mV when the load current jumps from 0 to 100 mA with edge of 100 ns, while employing a 100 pF capacitance load. The recovery time to return to equilibrium post this abrupt change is approximately 0.15 μs. The proposed OCL-LDO regulator exhibits a substantial enhancement in transient response compared to its predecessors, alongside a harmonized balance between line regulation and load regulation performance parameters.

Design and Analysis of High Gain Dual Stage Op-amp in Cadence 180 nm Technology

Abstract: Operational amplifier contains basic current mirror and dual input differential amplifier. Basic Current mirror is an electronic circuit which contains two transistors. The operation of the current mirror is that whenever current is applied to drain of one of the transistors with some magnitude same current will produce at the output of another transistor, hence the name mirror of the input signal. Operational amplifier contains two legs- inverting leg, non- inverting leg. If signals are applied to inverting and non-inverting legs , operational amplifier used as an amplifier and comparator or adder or subtractor. A two stage operational amplifier consists of a differential amplifier at the input stage.While the second stage is a high gain stage biased by the output of differential amplifier.

CMOS operational amplifier design for industrial and biopotential applications: Comprehensive review and circuit implementation

This paper provides a detailed exploration of CMOS operational amplifiers (Op-Amps) aimed at enhancing understanding of their development, design, and application. To achieve this, a comprehensive examination of the common characteristics, parameters, and bibliographic reviews of Op-Amps, distinguishing among various chosen operational amplifiers. A comprehensive bibliographic review of the operational amplifier's keywords between 2008 and 2018 has also been conducted. A bibliometric analysis of 4997 documents from the Web of Science (WOS) Collection is conducted using VOSviewer software. Furthermore, an analysis and comparison of these Op-Amps across functional aspects relevant to industrial and biomedical applications, emphasising the salient characteristics of each technique. After the survey, a novel Op-Amp design is proposed, incorporating a differential amplifier at the first stage, along with a compensating capacitor and a high gain stage. The biasing circuitry is replaced with an active load resistor (MOS transistor), simplifying layout design, and reducing the amplifier's area and power consumption compared to traditional two-stage designs. The power source for this design is 3.3 V. This designed operational amplifier achieved a gain of 62.9449 dB, a high CMRR of 92.8079 dB, and a unity gain bandwidth of 33 MHz, and the optimised layout area is 0.001476 μm2. The proposed circuit was designed and simulated utilising the Cadence Virtuoso 180 nm CMOS process. The simulation results show that the desired criteria have been met. Additionally, the challenges and future possibilities in analog circuits, laying the groundwork for research in both analogue and digital circuits to tackle complex real-world issues have been addressed.

Evaluation Indicator for the Spontaneous Combustion of Biomass Fuel Pellets and Its Self-Ignition Control

ABSTRACT To investigate the spontaneous combustion characteristics of biomass fuel particles, spontaneous combustion processes of 10 biomass samples were simulated by programmed-heating and continuous oxidation experiments. Analysis results indicated that during the very initial stage of spontaneous combustion (<90 °C), each biomass fuel particles merely yielded CO at 0–20 ppm, while the subsequent exponential growth of gas emissions tended to exhibit a significant variation on spontaneous liability. Due to the diversity of biomass material sources, its spontaneous combustion tendency is not only determined by internal properties, but also influenced by external factors such as particle size, ventilation rate, moisture, etc. There are many factors affecting the spontaneous combustion tendency, which cannot be analyzed accurately and quantitatively. Therefore, it is necessary to propose a stable indicator based on thermal analysis to objectively evaluate the tendency of biomass spontaneous combustion. A scientific index was proposed to precisely assess the spontaneous combustion tendency of biomass materials. Specifically, the activation energy (E) at the O2 gain stage was adopted as the priority criterion: If E < 70 kJ/mol, the biomass was defined to be highly flammable; if 70 ≤ E ≤ 80 kJ/mol, the biomass was considered to be prone to self-ignition; and if E > 80 kJ/mol, the biomass was regard as non-spontaneous combustion. Besides, data from cross-point temperature tests fundamentally support the reliability of mentioned evaluation methodology. In fire-extinguishment experiments, a conventional approach, such as suffocate by self-extinguishing, only reduced the temperature to 99.9–238.7°C. The comparison of extinguishing materials such as gaseous N2/liquid nitrogen, CO2, and C3HF7 revealed that extinguishing fire with C3HF7 exhibited a dramatic advantage at burning temperature > 500°C. However, fire extinguishing with CO2 was more suitable for the spontaneous combustion ignition of biomass at temperature ≤ 300°C.

Dynamic evolution of terahertz permittivity of lignite during oxidation: Microstructural insights

Terahertz technology holds promise for monitoring coal fires and assessing associated risks, relying on the dielectric response of coal during the oxidation process. Besides, unraveling the response mechanism is crucial for enhancing the application's reliability. In light of these, this study focused on investigating the terahertz complex permittivity of lignite with different oxidation temperatures through microstructure analysis. Results indicated that oxidation temperature dependencies in the real and imaginary parts of lignite's permittivity, exhibiting a pattern of initial decrease followed by an increase. The decrease in permittivity during the dehydration and weight loss stage is primarily attributed to moisture content. In the oxygen absorption and weight gain stage, pore development and scattering effects contribute to the continuous decrease in real permittivity and rise in imaginary permittivity. During the oxidative decomposition stage, the hydroxyl group initiates an increased real permittivity. Upon reaching the combustion temperature, there is a sudden surge in permittivity, driven by the dominance of minerals in coal dielectric properties. The conclusions offer theoretical support for terahertz technology in monitoring coal fires, which can contribute to the sustainable development of the coal industry, mineral processing, and safety production.

A 220-GHz InP DHBT power amplifier designed by adaptive impedance inner-stage matching (AIISM) technique

In this paper, we present a 220 GHz power amplifier in a 0.5 μm InP DHBT technology. This power amplifier utilizes six gain stages and four-way power combining. An adaptive impedance inner stage matching (AIISM) technique is proposed to extend the bandwidth. Besides, a co-simulating process is established by collaborating Keysight Advance Design System (ADS) and Ansys High Frequency Structure Simulator (HFSS) to improve the circuit simulation accuracy at terahertz frequencies. The result from the experiment shows that a peak small signal gain of 12.8 dB at 220 GHz. The peak output power of 9.8dBm was measured at 220 GHz and the associated large-signal gain is 7.6 dB. This amplifier occupies a 2.5 mm × 1.9 mm including pads.

First operation of the JUNGFRAU detector in 16-memory cell mode at European XFEL

The JUNGFRAU detector is a well-established hybrid pixel detector developed at the Paul Scherrer Institut (PSI) designed for free-electron laser (FEL) applications. JUNGFRAU features a charge-integrating dynamic gain switching architecture, with three different gain stages and 75 μm pixel pitch. It is widely used at the European X-ray Free-Electron Laser (EuXFEL), a facility which produces high brilliance X-ray pulses at MHz repetition rate in the form of bursts repeating at 10 Hz. In nominal configuration, the detector utilizes only a single memory cell and supports data acquisition up to 2 kHz. This constrains the operation of the detector to a 10 Hz frame rate when combined with the pulsed train structure of the EuXFEL. When configured in so-called burst mode, the JUNGFRAU detector can acquire a series of images into sixteen memory cells at a maximum rate of around 150 kHz. This acquisition scheme is better suited for the time structure of the X-rays as well as the pump laser pulses at the EuXFEL. To ensure confidence in the use of the burst mode at EuXFEL, a wide range of measurements have been performed to characterize the detector, especially to validate the detector alibration procedures. In particular, by analyzing the detector response to varying photon intensity (so called ‘intensity scan’), special attention was given to the characterization of the transitions between gain stages. The detector was operated in both dynamic gain switching and fixed gain modes. Results of these measurements indicate difficulties in the characterization of the detector dynamic gain switching response while operated in burst mode, while no major issues have been found with fixed gain operation. Based on this outcome, fixed gain operation mode with all the memory cells was used during two experiments at EuXFEL, namely in serial femtosecond protein crystallography and Kossel lines measurements. The positive outcome of these two experiments validates the good results previously obtained, and opens the possibility for a wider usage of the detector in burst operation mode, although compromises are needed on the dynamic range.

Evaluating two stages of silicone-containing arylene resin oxidation via experiment and molecular simulation

Silicon-containing aryl acetylene resin (PSA) is a new type of high-temperature resistant resin with excellent oxidation resistance, whereas antioxidant reaction mechanism of PSA resin under ultra-high temperatures still remains unclear. Herein, the oxidation behavior and mechanisms of PSA resin are systematically investigated combining kinetic analysis and ReaxFF molecular dynamics (MD) simulations. Thermogravimetric analysis indicates that the oxidation process of PSA resin undergoes two main steps: oxidative weight gain and oxidative degradation. The Distributed Activation Energy Model (DAEM) is employed for describing oxidation processes and the best-fit one is obtained using genetic algorithms and differential evolution. DAEM model demonstrates that the oxidative weight gain stage is dominated by two virtual reactants and the oxidative degradation stage consists of three virtual reactants. Correspondingly, the observation of MD reaction pathways indicates that oxygen oxidation of unsaturated structures occurs in the initial stage, which results in the formation of PSA resin oxides. Furthermore, cracked pieces react with O2 to generate CO and other chemicals in the second step. The resin matrix's great antioxidation resilience is illustrated by the formation of SiO2. The analysis based on MD simulations exhibits an efficient computational proof with the experiments and DAEM methods. Based on the results, a two-stage reaction mechanism is proposed, which provides important theoretical support for the subsequent study of the oxidation behavior of silica-based resins.

A Low Noise Variable Gain Amplifier with 97.2 dB Linear Gain Range for CW Radar

This manuscript reports the design of a low noise variable gain amplifier (VGA) having wide dB linear gain characteristics for a continuous wave (CW) radar. A pseudo-exponential gain control function has been adopted in this VGA for the wide dB-linear behavior. Also, a BJT-based gain stage has been proposed to improve the gain dynamic range and low noise performance due to its higher transconductance/gain and lower flicker noise contribution. This proposed 2-gain stage VGA has been implemented in 130 nm SiGe bipolar complementary metal–oxide–semiconductor (BiCMOS) technology. This design performance has been benchmarked by post-layout simulation results. It has demonstrated a voltage-controlled gain from -33.6 dB to 74.4 dB (total 108 dB), with a 97.2 dB linear gain range, input referred noise of 2.4 nV /√Hz, and power consumption of 4.25 mW. This VGA has a 3-dB bandwidth of 10 MHz at a maximum gain of 74.4 dB and 251 MHz at a minimum gain of -33.6 dB with a chip layout area of 0.0682 mm2 . Compared to the latest available CMOS/BiCMOS VGAs in the literature, this proposed VGA has the highest gain dynamic range and dB-linear gain range with minimum input referred noise simultaneously across the operation bandwidth.

Design of wide-band high-linearity transimpedance amplifier using standard CMOS technology

Abstract In this paper, the design methodology of a high-linearity wide-band transimpedance amplifier (TIA) for cable television (CATV) application is addressed. A simple four-stage topology is proposed to maintain a well-balanced linearity over a wide operating band. The regulated cascode (RGC) input stage is used to match an input impedance of 75 Ω, followed by a gain stage with enhanced bandwidth. The high-linearity output stage is able to drive the 75 Ω load directly with high output swing under a high supply voltage. The prototype is implemented with a standard 0.11μm CMOS process while occupying the silicon area of 0.034 mm2. The measurement results for the prototype show a peak gain of 76.6 dBΩ over a 3-dB bandwidth of 1.1 GHz with a considerably small gain ripple and an OIP 3 of 20.4 dBm. The whole test chip consumes 447 mW DC power and the measured average input-referred noise current spectral density is 7.9 pA Hz−1/2 up to 1 GHz.

Effect of rare-earth-containing inhibitors on the low-temperature oxidation characteristics and thermodynamic properties of coal

The frequent occurrence of coal spontaneous combustion (CSC) disasters poses a serious threat to green and safe coal production. Currently, inhibitor application is a crucial method for preventing CSC. In this study, layered double hydroxides (LDHs) were modified using the rare-earth element La3+ to prepare inhibitors (La/LDHs) with varying La3+ content. The prepared La/LDHs were characterized through X-ray diffraction, scanning electron microscopy, and energy-dispersive X-ray spectroscopy. Through a temperature-programmed method and thermogravimetry–differential scanning calorimetry, the effect of the prepared La/LDHs on the low-temperature (30–170 °C) oxidation characteristics and thermodynamic properties of coal were investigated, and the CSC inhibition mechanism of La/LDHs was determined. The results indicated that five La/LDH inhibitors were successfully prepared. The CO concentration, CO generation rate, and oxygen absorption rate of coal samples decreased after the addition of La/LDHs. Moreover, the CSC inhibition effect of the La/LDHs was the strongest at oxidation temperatures of 110–130 °C. The composite coal samples containing La/LDHs exhibited higher adsorption temperature (T0), critical temperature (T1), stagnation temperature (T2), growth-rate temperature (T3), and burnout temperature (T7) but lower mass-maxima temperature (T4), kindling-point temperature (T5), and maximum-weight-loss-rate temperature (T6). The La/LDHs shortened the heat release process of coal and considerably reduced the quantity of heat released, with a maximum reduction of 474 J/g. Moreover, the apparent activation energy increased in the mass gain stage and the thermal decomposition stage, with the highest increases of 148.7 and 233.2 kJ/mol, respectively. Among the prepared samples, La/LDH-3 and La/LDH-5 exhibited the strongest CSC inhibition effects. These research results have important practical implications for the prevention and control of CSC during coal production and storage, and for improving environmental protection and safety in coal production.

An Ultra-Low-Voltage 2.4-GHz Flicker-Noise-Free RF Receiver Front End Based on Switched-Capacitor Hybrid TIA With 4.5-dB NF and 11.5-dBm OIP3

In this article, an ultra-low-voltage 2.4-GHz radio frequency (RF) receiver front-end architecture targeting the removal of output flicker noise is presented, making it possible to use zero-IF topology for narrow-band communication standards. The trans-impedance amplifier (TIA) is built on the proposed hybrid operational trans-conductance amplifier (OTA) with a switched-capacitor (SC) amplifier as the first gain stage and an active primary–secondary amplifier as the second gain stage, achieving an imperceptible flicker-noise corner frequency. With the SC gain stage, the interstage common-mode voltage can be set to 0 V, which reduces the minimum supply voltage to 0.5 V. As another benefit, dc offset compensation (DCOC) is performed inherently in the interstage sampling and coupling process. Fabricated in 28-nm RF CMOS process, the front-end prototype, including an on-chip matching inductor, occupies a die area of 0.8 mm <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math notation="LaTeX">$^{2}$</tex-math> </inline-formula> . Operating in the Industrial Scientific Medical (ISM) frequency band of 2.4 GHz with 1-MHz IF bandwidth, the front end provides a 36–40-dB conversion gain, an 11.5-dBm OIP3, and a flicker-noise corner frequency less than 10 kHz with the supply voltage ranging from 0.5 to 0.6 V. The RF impedance matching network provides passive voltage gain before the low-noise trans-conductance amplifier (LNTA), achieving a 4.5-dB noise figure (NF) with 0.8-mA biasing current in the <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math notation="LaTeX">$g_m$</tex-math> </inline-formula> stage. With the ultra-low supply voltage and the passive IF gain stage, the power consumption of the proposed front end is only 610 <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math notation="LaTeX">$\mu $</tex-math> </inline-formula> W under a 0.53-V supply voltage.

Feasibility Study of the Use of Operational Amplifiers as Forward Gain Stages in Charge Preamplifiers and Shaping Filters for Radiation Detectors

Feasibility Study of the Use of Operational Amplifiers as Forward Gain Stages in Charge Preamplifiers and Shaping Filters for Radiation Detectors

Effect of Gas-Phase Passivation Technology on Spontaneous Combustion Characteristic Stage and Reaction Kinetics of FeS During Particle Size Fragmentation

ABSTRACT To investigate the mechanism of inhibition of spontaneous combustion of reactive FeS by gas-phase passivation, this paper used liquid-phase synthesis to prepare reactive FeS which were divided into five particle size ranges by crushing and grinding and then passivated those by low-oxygen gas. This paper analyzed the effect of gas-phase passivation on the characteristic parameters of the characteristic stages of crushed FeS from the perspective of thermodynamics, and used the KAS and FWO methods to calculate the apparent activation energy of the different characteristic stages of the FeS oxidation heating process. Inhibition mechanism of FeS spontaneous combustion reaction kinetics during particle size fragmentation by gas-phase passivation was revealed. The results indicate that in the spontaneous combustion stage at room temperature (RT), the exothermic heat of passivated FeS was significantly reduced to below 5 J/g, and the apparent activation energy rose up to 116 kJ/mol, which was significantly increased by about 50% compared to the activated FeS. The essence of gas-phase passivation is that the low oxygen concentration gas reacts with FeS to produce a passivation protective film, blocking the reaction and pushing the oxidation process backwards as a whole. In the weight gain stage of oxygen absorption, the weight gain of passivation FeS is reduced to less than 2.2%, and the heat release is reduced to 2.8J/g. The particle size of the passivated FeS decreased, and the apparent activation energy increased by 20 kJ/mol in the decomposition and combustion stage. With the decrease of FeS particle size, the gas-phase passivation is more effective and the inhibition effect of spontaneous combustion of FeS is more obvious.

60 GHz Analog Radio-Over-Fiber Single Sideband Transmitter Chipset With 55nm SiGe BiCMOS Driver RFIC and Silicon Photonics Modulator PIC

An all-silicon analog radio-over-fiber transmitter chipset is presented for narrowband operation in the unlicensed 60 GHz V-band for use in low-cost and low-power distributed antenna systems. The chipset consists of a low-noise high-speed quadrature driver RFIC and an EAM based single-sideband I/Q modulator PIC. Resonant matching is used to drive the EAMs which provides 6 dB more gain compared to an on-chip 50 <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"><tex-math notation="LaTeX">$\Omega$</tex-math></inline-formula> resistive termination. A further 6 dB improvement is had by placing the quadrature hybrid on the RFIC before the output stages compared to implementations that place the hybrid on the PIC. The RFIC consists of a low-noise input stage, gain stages, a hybrid coupler and two output stages while the PIC consists of parallel electro-absorption modulators and thermo-optic phase shifters. A sideband suppression ratio of 25 dB is demonstrated with a full chipset size of 1.1 mm <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"><tex-math notation="LaTeX">$^{2}$</tex-math></inline-formula> and a power consumption of 45 mW. Succesful optical back-to-back experiments were conducted using various QAM signals.

A CMOS transimpedance amplifier with broad-band and high gain based on negative Miller capacitance

A CMOS transimpedance amplifier (TIA) with broad band and high gain based on negative Miller capacitance and capacitive degeneration has been proposed and designed. The theoretical analysis shows that by introducing negative Miller capacitance into the feedforward common gate (FCG) amplifier circuit, the bandwidth limitation caused by the internal parasitic capacitance can be reduced, and by cascading the capacitive degeneration-based common source (CS) amplifier as the gain stage, the amplifier gain can be improved simultaneously. The proposed TIA is designed and simulated in TSMC 65 nm CMOS process, The simulation results show that the −3 dB bandwidth of the amplifier circuit is 23.7 GHz, the transimpedance gain is 60.1 dBΩ, the average equivalent input noise current spectral density is less than 40.7 pA/√Hz, the power consumption is 4.8 mW, and the circuit layout area is 0.0027 mm2. In Comparison to the published TIA circuits, the bandwidth of the designed CMOS TIA is increased by 12.7 GHz, the gain is increased by 18.1 dBΩ and the circuit layout area becomes smaller. All the results demonstrate that the designed TIA can be used in the photoelectric detection circuit with broader bandwidth and higher gain.