Title :
High-Performance Pixelwise Readout Integrated Circuits for Microbolometer
Author :
Hwang, Chi Ho ; Lee, Yong Soo ; Lee, Hee Chul
Author_Institution :
Korea Adv. Inst. of Sci. & Technol., Daejeon
Abstract :
In this paper, a pixelwise readout structure for a microbolometer is proposed. A current mirror gate modulation (CM) is employed as an input circuit to archive high responsivity and a current mode background suppression is used to reduce the integration capacitance. As a long integration time of more than 1 ms can be obtained using this pixelwise readout structure, the noise equivalent temperature difference (NETD) is 26 mK, which is much better than that of the conventional circuits, 67 mK.
Keywords :
bolometers; current mirrors; infrared detectors; readout electronics; current mirror gate modulation; microbolometer; noise equivalent temperature difference; pixelwise readout integrated circuits; uncooled infrared detector; Capacitors; Circuit noise; Computer science; Electric resistance; Energy consumption; Infrared detectors; Integrated circuit noise; Mirrors; Temperature; Voltage; microbolometer; pixelwise; readout integrated circuit; uncooled infrared detector;
Conference_Titel :
Electronics, Circuits and Systems, 2006. ICECS '06. 13th IEEE International Conference on
Conference_Location :
Nice
Print_ISBN :
1-4244-0395-2
Electronic_ISBN :
1-4244-0395-2
DOI :
10.1109/ICECS.2006.379641
