Title :
Design of an adjustable bias circuit using a single-sided CMOS supply for avalanche photodiodes
Author :
Deng, Shijie ; Morrison, Alan P.
Author_Institution :
Dept. of Electr. & Electron. Eng., Univ. Coll. Cork, Cork, Ireland
Abstract :
A charge pump circuit operating from a single-sided CMOS supply, capable of biasing avalanche photodiodes up to 40 V with load currents in the mA range is presented. This circuit introduces new design elements that overcome previously published limitations. These elements include pass-gate voltage regulators and a mechanism for linking the negative voltage regulator to the positive voltage output. This design allows linear adjustment of the output voltage from a single control voltage. The circuit has compact dimensions of 1.55 mm × 1 mm, including bond pads, which makes it suitable for hybrid integration in a single package with an APD and two surface-mount capacitors.
Keywords :
CMOS integrated circuits; avalanche diodes; capacitors; charge pump circuits; integrated circuit design; photodiodes; surface mount technology; voltage regulators; APD; adjustable bias circuit design; avalanche photodiode; biasing; bond pad; charge pump circuit; load current; negative voltage regulator; pass-gate voltage regulator; positive voltage output; single control voltage; single-sided CMOS supply; surface-mount capacitor; Avalanche photodiodes; Capacitors; Charge pumps; Clocks; Integrated circuit modeling; Regulators; Voltage control;
Conference_Titel :
New Circuits and Systems Conference (NEWCAS), 2012 IEEE 10th International
Conference_Location :
Montreal, QC
Print_ISBN :
978-1-4673-0857-1
Electronic_ISBN :
978-1-4673-0858-8
DOI :
10.1109/NEWCAS.2012.6328957
