Design and implementation of infrared readout circuit using a new input circuit of current mirroring direct injection (CMDI)

• Autorzy: Yoon, N. , Kim, B. , Lee, H. , Kim, C.
• Języki publikacji: EN

Abstrakty

EN

A new readout structure for infrared (IR) focal plane arrays (FPA) is presented in this paper. By applying a new input circuit of current mirroring direct injection (CMDI), we realised a high-performance readout circuit for IRFPA. It was found from the SPICE simulation that the CMDI inherently makes the detector bias stable as well as has almost 100% injection efficiency to the readout circuit from the detector even for low R_DA values because it has almost zero input impedance. Compared with previous other input circuits, it has also many advantages such as small area and low power consumption. A readout chip including the CMDI inputt circuit has been designed and fabricated for MWIR 1x128 staggered linear HgCdTe infrared detector arrays using 1.2 um single-poly-double-metal N-well CMOS technology. From the measurement results of the fabricated chip, the readout function was successfully verified at 77 K with 5 V supply voltage.

Słowa kluczowe

EN

readout integrated circuit (ROIC); infrared detector; new input circuit; current mirror

• Czasopismo: Opto-Electronics Review
• Rocznik: 1999
• Tom: Vol. 7, No. 4
• Strony: 321-326
• Opis fizyczny: Bibliogr. 4 poz.

Twórcy

autor

Yoon, N.

autor

Kim, B.

autor

Lee, H.

autor

Kim, C.

• Department of Electrical Engineering and Centre for Electro-Optics, Korea Advanced Institute of Science and Technology, 305-701 Taejon, Korea,