Design and operation of self-biased high-gain amplifier arrays for photon-counting sensors
نویسندگان
چکیده
Design and operation of high-gain (>1000), low-power (< 75 jtW), ultra low-noise amplifier arrays are presented. The amplifier array is operated in self-biased mode, such that all amplifiers are biased irrespective of threshold mismatches, and operate with low reset noise. The amplifiers are designed for possible incorporation as pixels of hybrid solid-state photon-counting sensor. The cell pitch is 30 jim in 1.2 m CMOS technology. Design and experimental results from small arrays of the two most promising amplifier circuits are reported. Design issues for obtaining sub-electron input-referred noise from these in-pixel amplifiers are discussed. A performance summary is incorporated.
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