RT Journal Article
T1 Simple power-efficient preamplifier-shaper channel for readout interface of silicon detectors
A1 Sánchez Rodríguez, Trinidad
A1 Gómez Galán, Juan Antonio
A1 Hinojo Montero, José María
A1 Sánchez Raya, Manuel
A1 Muñoz Chavero, Fernando
A1 González Carvajal, Ramón
AB This paper presents the design and characteristics of a front-end readout system for silicon sensors used in nuclear spectroscopy studies. Furthermore, the study proposes circuit topologies that combine gain-boosting and class-AB techniques featuring a good performance regarding gain, accuracy, speed, linearity, and power consumption, meeting the stringent requirements of deep submicrometer CMOS technologies. The readout channel comprises a charge-sensitive amplifier with a tunable discharge time, pole-zero cancellation circuit, and first-order unipolar shaper with a peaking time of 90 ns. The building blocks are made up of single-stage op-amps, thus not requiring compensation. Furthermore, the circuit is optimized for a detector capacitance of 5 pF, and the noise performance is discussed. Experimental results in a 180 nm CMOS process and a supply voltage of ±0.9 V validate the designed front-end channel. The total area of the chip obtained was 0.028 mm2. The conversion gain was 3.1 mV/fC, and the system maintained linearity up to an input charge range of 150 fC with a maximum output swing of 460 mV and recovered to the baseline within 400 ns. The compact design and the power consumption of only 1.97 mW provided a feasible solution for current radiation detectors coupled to many highly dense electronic channels.
PB Elsevier
SN 1434-8411
SN 1618-0399 (electrónico)
YR 2025
FD 2025-01
LK https://hdl.handle.net/10272/24429
UL https://hdl.handle.net/10272/24429
LA eng
NO Trinidad, S.-R., Juan Antonio, G.-G., José, H.-M., Manuel, S.-R., Fernando, M., & Ramón, G.-C. (2025). Simple power-efficient preamplifier-shaper channel for readout interface of silicon detectors. In AEU - International Journal of Electronics and Communications (Vol. 188, p. 155577). Elsevier BV. https://doi.org/10.1016/j.aeue.2024.155577
DS Repositorio Institucional de la Universidad de Huelva
RD 30 may 2026