Charge-coupled amplifier and converter with matched offsets

Details Charge-coupled amplifier and converter with matched offsets Charge-coupled amplifier and converter with matched offsets

2005-09-13

2005-09-13

Nguyen, John B (Department: 2819)

Coded data generation or conversion

Analog to or from digital conversion

Analog to digital conversion

C341S155000, C341S150000

Reexamination Certificate

active

06943721

ABSTRACT:
An linear optical sensor charged-coupled topology using single-stage inverting charge-coupled amplifier driving an analog-to-digital converter which uses the converter full-scale reference as a precharge level. Since an offset in the range of 100–200 mV is introduced in the charge amplifier, a corresponding offset is also introduced into the ADC to allow the amplifier to more quickly drive the amplifier output to a low level. The converter offset is proportional to the converter reference to ensure that it is controlled and tracks the reference.

REFERENCES:
patent: 4907084 (1990-03-01), Nagafusa
patent: 5027117 (1991-06-01), Yoshida et al.
patent: 5387986 (1995-02-01), Gerhart
patent: 5513018 (1996-04-01), Nisimura
patent: 5708471 (1998-01-01), Okumura
patent: 5757440 (1998-05-01), Mangelsdorf
patent: 5796361 (1998-08-01), Levinson

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