Design of broadband transimpedance amplifier for optical communication systems

Seifouri, Mahmood; Amiri, Parviz; Rakide, Majid

doi:10.1016/j.mejo.2015.05.007

Cited by 37 publications

(15 citation statements)

References 21 publications

(28 reference statements)

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“…However, the photocurrent would flow through the input parasitic capacitance C i,cs rather than RGC input impedance at high frequencies, thus leads to the reduction of RGC bandwidth. To avoid this situation, the inductor L 3 is therefore inserted between the X node and the gate of M B [8], as shown in Fig. 2 …”

Section: The Novel Tia With Optimum Biasmentioning

confidence: 99%

“…Additionally, the RGC TIA also has a lower input referred noise current with respect to common gate (CG) amplifier. To obtain higher bandwidth, various bandwidth enhancement techniques have been demonstrated in RGC configuration, such as auxiliary amplifier improvement technique [4,5], passive matching network [6][7][8][9][10][11][12][13] and polezero cancellation [14,15]. Compared with other techniques, the passive matching network is found more effective both in bandwidth enhancement and noise reduction.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A Broadband Transimpedance Amplifier with Optimum Bias Network

Gao¹,

Xie²,

Mao³

et al. 2016

Proceedings of the 2016 4th International Conference on Management, Education, Information and Control (MEICI 2016)

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Abstract.A novel transimpedance amplifier (TIA) based on regulated cascode (RGC) configuration was proposed, in which a bias network was added to ensure the main amplifier and the auxiliary amplifier of RGC operate at optimum condition. To achieve high bandwidth, a T-passive matching network was introduced at the input. Since both amplifiers have optimum gain-bandwidth product (GBW), thus low noise and high bandwidth can be obtained in our design scheme. The proposed TIA was designed based on UMC 0.18 μm CMOS process, and the simulation results demonstrated that our TIA has a transimpedance gain of 51 dBΩ and a -3 dB bandwidth of 14 GHz with a input capacitance of 0.3 pF. The average equivalent input noise current spectral density is about 13 pA/√Hz within -3 dB bandwidth.

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Section: The Novel Tia With Optimum Biasmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A Broadband Transimpedance Amplifier with Optimum Bias Network

Gao¹,

Xie²,

Mao³

et al. 2016

Proceedings of the 2016 4th International Conference on Management, Education, Information and Control (MEICI 2016)

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“…In the recent years, researchers have discussed and analyzed different circuit structures and techniques to improve the performance of the TIA circuits for using in high‐speed communication applications. These techniques are as follows: f T doubler, shunt peaking, inductive peaking and series peaking technique, active feedback, 3D inductor serial peaking, slew boosting, Regulated Cascode (RGC), common‐drain feedback, T‐coil inductor matching, negative impedance compensation, double three‐order active feedback, stagger tuning, Л‐network, voltage‐current feedback, the zero and pole cancellation, and a three‐dimensional inductor converter . In addition, structures that are usually used as TIA building blocks to alleviate the bandwidth reduction are as follows: RGC structure, stagger tuning, and T‐coil inductor matching.…”

Section: Introductionmentioning

confidence: 99%

A low‐power CMOS transimpedance amplifier in 90‐nm technology for 5‐Gbps optical communication applications

Zohoori

Dolatshahi

2018

Circuit Theory & Apps

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In this paper, a modified Regulated Cascode (RGC)-based, low-power, transimpedance amplifier (TIA) is proposed followed by a closed-loop gain stage beside an added level shifter circuit to the booster of a conventional RGC circuit to set the proper biasing conditions for the transistors in the proposed TIA structure in 90-nm CMOS technology. Moreover, the added gain stage benefits from an active inductor which resonates with the output capacitance of the TIA circuit to extend the bandwidth while saves the occupied chip area in comparison with passive inductor schemes. In addition, the performance of the proposed TIA circuit is simulated in HSPICE using 90-nm CMOS technology parameters which show a transimpedance gain of 41 dBΩ, −3-dB frequency bandwidth of 3.7 GHz, input referred noise value of 834nA rms , and the power consumption value of only 1.4 mW at 1-V supply.

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“…To meet the requirements of low cost, high integration, and high manufacturability, TIAs based on CMOS technology have been actively investigated in the past decade. Due to the features of wide bandwidth and low power consumption, TIAs with regulated cascode (RGC) topology are widely explored in broadband optical receiver system [6,7,8,9,10,11]. Nevertheless, the input impedance of conventional RGC TIA needs to be further modified to provide enough bandwidth.…”

Section: Introductionmentioning

confidence: 99%

“…Nevertheless, the input impedance of conventional RGC TIA needs to be further modified to provide enough bandwidth. Up to now, numerous approaches to achieving wide bandwidth have been proposed, such as series inductor peaking [6], T-matching network [7], multi-path TIAs [8], and capacitive degeneration technique [9]. Yet, wide-band obtained by these techniques is at the expense of large chip area or/and gain reduction.…”

Section: Introductionmentioning

confidence: 99%

A design methodology to extend bandwidth for regulated cascode transimpedance amplifier

Xie

Mao

et al. 2017

IEICE Electron. Express

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This brief analyzes the performance of regulated cascode (RGC) topology and develops a broadband transimpedance amplifier (TIA) incorporated with a novel dual shunt-feedback configuration. Compared to traditional RGC circuit, the proposed TIA improves the natural frequency and optimizes the damping factor. Furthermore, the common source auxiliary amplifier is replaced by an inverter amplifier to provide extra gain and reduce the equivalent input noise current. Based on 0.18-µm CMOS technology, a TIA with enhanced RGC structure was optimized and implemented, and the fabricated chip was mounted on a Rogers 4003C printed circuit board. The experimental results demonstrate a 5.2 GHz bandwidth and a 60.5 dBΩ transimpedance gain for 0.5 pF photodetector capacitance. The fluctuation of group delay is less than 50 ps, and the measured average equivalent input noise current density is about 14.99 pA/√Hz. The chip consumes 28.4 mW using 1.8 V supply.

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Design of broadband transimpedance amplifier for optical communication systems

Cited by 37 publications

References 21 publications

A Broadband Transimpedance Amplifier with Optimum Bias Network

A Broadband Transimpedance Amplifier with Optimum Bias Network

A low‐power CMOS transimpedance amplifier in 90‐nm technology for 5‐Gbps optical communication applications

A design methodology to extend bandwidth for regulated cascode transimpedance amplifier

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