Fluorecence spectrum measurement integrated circuit for cancer cell screening
A fluorescence spectrum and integrated circuit technology is applied in the field of fluorescence spectrum measurement integrated circuits, which can solve the problems of low power consumption and small size, and achieve the effects of small error, wide detection range and error avoidance.
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[0027] Further illustrate the present invention below in conjunction with accompanying drawing.
[0028] A fluorescence spectrum measurement integrated circuit for cancer cell screening according to the present invention comprises a BDJ photocurrent extraction amplification circuit 1, a photocurrent flow direction selection circuit 2, a current-voltage conversion circuit 3, a reset control circuit 4, a voltage- The frequency conversion circuit 5, the shaping feedback circuit 6, and the duty cycle adjustment circuit 7 are composed of seven modules in total.
[0029] In the BDJ photocurrent extraction amplifier circuit 1, the shallow PN junction photodiode D1 and the deep PN junction photodiode D2 are in a reverse bias state, and the photocurrent flows out from the common anode of D1 and D2, and the PMOS transistors P1, P2, P3, P4 constitutes a current mirror with a Cascode structure, and the NMOS transistors N1, N2, N3, N4 and NMOS transistors N1, N2, N5, and N6 also constitute...
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