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A novel bipolar imaging device with self-noise-reduction capability

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3 Author(s)
Tanaka, N. ; Canon Inc., Kanagawa, Japan ; Ohmi, T. ; Nakamura, Y.

A bipolar image sensor with charge amplification and noise-reduction capabilities in each unit cell is discussed. The dynamic range of linearity in the photoelectric conversion characteristics has been greatly extended by using capacitor-loaded emitter-follower circuitry and a readout operation in a deep forward-base-emitter-biasing condition. The fixed pattern noise and the random noise are reduced by introducing a hybrid reset operation that is a combination of the clamp reset and the transient reset

Published in:

Electron Devices, IEEE Transactions on  (Volume:36 ,  Issue: 1 )

Date of Publication:

Jan 1989

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