Gorre, P.Vignesh, R.Kumar, S.2026-02-042022Microelectronics Journal, 2022, 126, , pp. -9598324https://doi.org/10.1016/j.mejo.2022.105477https://idr.nitk.ac.in/handle/123456789/224701This work reports a Microstrip Line (MSL) based Dual-Gate MOSFET (DGMOSFET) Transimpedance amplifier (TIA) for LIDAR unmanned vehicle application under different weather conditions. TIA (Design-I) is proposed under normal weather, while TIA (Design-II) for foggy weather conditions. TIA (Design-I) employs a variable gain common gate topology with post-amplification, resulting in high gain, wide bandwidth, and high dynamic range (DR). TIA (Design-II) incorporates a series MSL section at the input of TIA (Design-I), which further enhances the bandwidth performance. TIA (Design-I) realizes a fractional bandwidth of 104.3% with a transimpedance gain of 100.4 dBΩ and low input-referred noise (IRN) density of 4.29 pA/√Hz. TIA (Design-II) achieves a fractional bandwidth of 178.4% with transimpedance gain, IRN, and DR of 100.42 dBΩ, 3.81 pA/√Hz, and 70 dB, respectively. TIA (Design-II) demonstrates a 1 Gb/s data rate with a bit-error-rate < 10−10. The TIA (Design-I) and TIA (Design-II) consume the power of 33 mW and 39 mW under the supply voltage of 2 V. © 2022 Elsevier LtdBandwidthBit error rateOperational amplifiersAmplifier designsCommon gatesDual gatesDual-gate MOSFETLinear dynamic rangesMicrostrip lineMicrostrip-lineMOSFETsVariable gainVariable-gain common gateOptical radar