Integral bleeder circuit based on composite dielectric gate double-transistor photosensitive detector
A photosensitive detector and two-transistor technology, applied in circuits, electric solid-state devices, semiconductor devices, etc., can solve the problems of unfavorable chip miniaturization, large area, high power consumption, etc., so as to reduce the use of operational amplifiers and reduce power consumption. Effects with area, high power consumption
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[0025] Example 1
[0026] In this embodiment, an integral bleeder circuit based on the linear integral synchronous bleeder of the composite dielectric gate two-transistor photosensitive detector is introduced, such as image 3 shown. Among them, M1~M9 constitute a preprocessing circuit, and the preprocessing output signal I PO for preprocessing the input signal I 1 , I 2 Difference. Capacitor C1 constitutes an integral circuit to complete the linear integral operation. CMP and LAT form a pulse generation circuit, and complete the pulse generation output signal V PO production. M10 constitutes a discharge circuit to complete the charge discharge function of the integrating circuit. The specific circuit is as follows: Preprocessing the input signal I 1 It is connected with the drain terminal and gate terminal of the transistor M1 and the gate terminal of the transistor M2 to preprocess the input signal I 2It is connected to the drain terminal of transistor M2, the drain...
Example Embodiment
[0028] Example 2
[0029] In this embodiment, an integrating and bleeder circuit for the positive and negative arrays of the composite dielectric gate double transistor photodetector is introduced, such as Figure 4 shown. C1, C2 and M0 constitute a composite dielectric gate double-transistor photodetector. The gray part on the left is a 2×2 composite dielectric gate double-transistor photodetector array that represents a positive number to form a positive array, and the gray part on the right is 2×2. The composite dielectric gate two-transistor photodetector array representing negative numbers constitutes a negative array. The integral bleeder circuit adopts the circuit of Embodiment 1. The positive array and the negative array are connected with the source terminals of each column of composite dielectric gate double transistor photodetectors to form source lines (the other interfaces are not shown). Integral bleeder circuit #1 is used to calculate the first source line of...
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