Readout integrated circuit with dual mode design for infrared focal plane array photo-detector

Author

Tai-Ping Sun ; Yi-Chuan Lu ; Hsiu-Li Shie ; Shiang-Feng Tang ; Wen-Jen Lin

Author_Institution

Dept. of Electr. Eng., Nat. Chi Nan Univ., Nantou, Taiwan

fYear

2012

fDate

13-16 Dec. 2012

Firstpage

1

Lastpage

4

Abstract

This paper presents the readout circuit based on Direct Injection (DI) and Capacitive Transimpedance Amplifier (CTIA). The hybrid type of CTIA and DI was adopted as the pixel circuit´s design in this paper. The two different structures were combined into unit pixels, and each pixel has two modes of readout. Furthermore, the chip was produced with TSMC 2P4M 5V technology, and the array size is 10×8. The output swing is 2.1V and power consumption is 9.4 mW, according to measurement results. The Layout area is 40um × 40um, and the two modes are selected by an external pin. The dual mode structure enables single- and dual-band infrared sensors. The readout chip can operate in 2kHz ~ 6MHz, and the input photocurrent range is 1pA ~ 50nA, depending on integration time; thus, it can be suitable for various detectors.

Keywords

CMOS integrated circuits; focal planes; infrared detectors; integrated optics; integrated optoelectronics; operational amplifiers; optical design techniques; photoconductivity; photodetectors; power consumption; 10X8 array size; TSMC 2P4M CMOS technology; capacitive transimpedance amplifier; current 1 pA to 50 nA; direct injection; dual mode design; dual-band infrared sensors; frequency 2 kHz to 6 MHz; infrared focal plane array photodetector; input photocurrent; layout area; output swing; power 9.4 mW; power consumption; readout chip; readout integrated circuit; single-band infrared sensors; size 40 mum; voltage 2.1 V; voltage 5 V; Switches; capacitive transimpedance amplifier; direct injection; integration time; pixel; readout circuit;

fLanguage

English

Publisher

ieee

Conference_Titel

Photonics Global Conference (PGC), 2012

Conference_Location

Singapore

Print_ISBN

978-1-4673-2513-4

Type

conf

DOI

10.1109/PGC.2012.6458109

Filename

6458109