Current mode read-out circuit for InGaAs photodiode applications

Pietro Maris Ferreira (1, 2) , José Gabriel R.C. Gomes (1, 2) , Antonio Petraglia (1, 2)

1 UFRJ - Universidade Federal do Rio de Janeiro [Brasil] = Federal University of Rio de Janeiro [Brazil] = Université fédérale de Rio de Janeiro [Brésil]
2 PEE/COPPE-UFRJ - Programa de Engenharia Elétrica

Infrared focal plane arrays have many military, industrial, medical, and scientific applications that require high-resolution and high-performance read-out electronics. In applications involving InGaAs sensor arrays, data read-out can be carried out by circuits implemented with View the MathML source CMOS technology. In this paper we propose a dynamically regulated cascode current mirror for pixel read-out. From simulation results, we expect this circuit to achieve a better trade-off between silicon area, signal-to-noise ratio, and output dynamic range than the trade-off that is currently achieved by current mode CMOS read-out circuits.

Mots clés: Analog integrated circuits; CMOS; Current mode; Infrared image sensor; Read-out circuit

Domaines: Micro et nanotechnologies/Microélectronique; Electronique

Pietro Maris Ferreira, José Gabriel R.C. Gomes, Antonio Petraglia. Current mode read-out circuit for InGaAs photodiode applications. Microelectronics Journal, 2010, 41 (07), ⟨10.1016/j.mejo.2010.04.010⟩. ⟨hal-01222155⟩