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A 40-nm CMOS Wide Input Range and Variable Gain Time-Difference Amplifier Based on Current Source Architecture | IEEE Conference Publication | IEEE Xplore

A 40-nm CMOS Wide Input Range and Variable Gain Time-Difference Amplifier Based on Current Source Architecture


Abstract:

A time-difference amplifier (TDA) with a wide time-difference input range and variable gain is presented in this paper. Its time amplification is performed using novel cu...Show More

Abstract:

A time-difference amplifier (TDA) with a wide time-difference input range and variable gain is presented in this paper. Its time amplification is performed using novel current source architecture, phase detection, and variable delay circuits. After time amplification, to avoid the current sources for charging and discharging capacitors simultaneously, a reset circuit is added. To widen the input time-difference range, an adjustable current source control is added. The proposed TDA is implemented using TSMC 40-nm CMOS process. The core area is 209.42\times 84.775\mu \mathrm{m}^{2}. Though our design is driven by a lower supply voltage, it has the widest time-difference input range and the largest FOM among all existing TDAs.
Date of Conference: 27 May 2022 - 01 June 2022
Date Added to IEEE Xplore: 11 November 2022
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Conference Location: Austin, TX, USA

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