Low power ramp generator for use in single slope A/D

Details Low power ramp generator for use in single slope A/D Low power ramp generator for use in single slope A/D

1998-09-03

2000-11-07

Young, Brian

Coded data generation or conversion

Analog to or from digital conversion

Analog to digital conversion

341155, 327379, H03M 150

Patent

active

061443301

ABSTRACT:
An apparatus comprising a charge pump configured to receive an input signal and to output incrementally a fixed amount of voltage for every selected edge of the input signal, an analog buffer coupled to said charge pump, the analog buffer feeding back a second voltage to said charge pump, the output of the charge pump linearly increases as a function of the fixed amount of voltage. A low power ramp generator that is created thereby may be used in analog to digital converters which are employed in devices such as imaging systems.

REFERENCES:
patent: 5539351 (1996-07-01), Gilsdorf et al.
patent: 5982318 (1999-11-01), Yiannoulos

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