Jespers, Paul
[UCL]
Jusseret, C.
Leduc, Y.
An on-chip charge-sensing circuit with a feedback loop has been designed for improving the charge-transfer speed in photodiode arrays. Its large output voltage swing combined with improved speed performances, makes this circuit well-suited for OCR applications, especially low-cost data capture devices. Sample and hold operation can easily be performed without increasing the Si real estate, making parallel output feasible with frame rates of 3 kHz for arrays with 500 pixels. Experimental arrays were built in standard p-channel aluminum-gate technology.
Bibliographic reference |
Jespers, Paul ; Jusseret, C. ; Leduc, Y.. A fast sample and hold charge-sensing circuit for photodiode arrays. In: IEEE Journal of Solid State Circuits, Vol. SC-12, no. 3, p. 232-237 (1977) |
Permanent URL |
http://hdl.handle.net/2078.1/66641 |